Previous chapters have discussed G-force accelerations of various durations.EXAMPLE-1: 100 days of G-force enables a cruise velocity of about 25%c.EXAMPLE-2: G-force propulsion for a year (365.25 days) achieves a cruise velocity of about 65%c. (NOTE: Further discussed in "Standard" Time Dilation to AC.) Thought Experiment (TE) assumes that inherent fuel limitations would not enable a vessel to G-force propel for much longer than one year.EXAMPLE-3: HOWEVER, Interstellar Snowballs (huge spheres of ice sent to refuel star bound ships) might enable an interstellar vessel to G-force accelerate for as long as 712 days to enable a cruise velocity of 86.7%c. At such a speed, vessel observers would measure time at half the rate as an Earth bound observer (due to relativistic time dilation).
Normal
Time | Vehicle
Velocity | Dilated
Time |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
361 days | 110.811 AU/day | 110.723 AU/day | 0.6394 c | 0.7688 days | 327.2464 days |
362 days | 110.988 AU/day | 110.900 AU/day | 0.6405 c | 0.7680 days | 328.0144 days |
363 days | 111.163 AU/day | 111.075 AU/day | 0.6415 c | 0.7671 days | 328.7815 days |
364 days | 111.338 AU/day | 111.251 AU/day | 0.6425 c | 0.7663 days | 329.5477 days |
365 days | 111.513 AU/day | 111.426 AU/day | 0.6435 c | 0.7654 days | 330.3131 days |
366 days | 111.687 AU/day | 111.600 AU/day | 0.6445 c | 0.7646 days | 331.0777 days |
367 days | 111.861 AU/day | 111.774 AU/day | 0.6455 c | 0.7637 days | 331.8414 days |
368 days | 112.034 AU/day | 111.948 AU/day | 0.6465 c | 0.7629 days | 332.6043 days |
369 days | 112.207 AU/day | 112.121 AU/day | 0.6475 c | 0.7620 days | 333.3663 days |
370 days | 112.379 AU/day | 112.293 AU/day | 0.6485 c | 0.7612 days | 334.1275 days |
371 days | 112.551 AU/day | 112.465 AU/day | 0.6495 c | 0.7603 days | 334.8878 days |
372 days | 112.722 AU/day | 112.636 AU/day | 0.6505 c | 0.7595 days | 335.6473 days |
373 days | 112.893 AU/day | 112.807 AU/day | 0.6515 c | 0.7586 days | 336.4059 days |
374 days | 113.063 AU/day | 112.978 AU/day | 0.6525 c | 0.7578 days | 337.1637 days |
375 days | 113.233 AU/day | 113.148 AU/day | 0.6534 c | 0.7569 days | 337.9206 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
376 days | 113.402 AU/day | 113.318 AU/day | 0.6545 c | 0.7561 days | 338.6767 days |
377 days | 113.571 AU/day | 113.487 AU/day | 0.6554 c | 0.7552 days | 339.4320 days |
378 days | 113.739 AU/day | 113.655 AU/day | 0.6564 c | 0.7544 days | 340.1864 days |
379 days | 113.907 AU/day | 113.823 AU/day | 0.6574 c | 0.7536 days | 340.9399 days |
380 days | 114.075 AU/day | 113.991 AU/day | 0.6584 c | 0.7527 days | 341.6926 days |
381 days | 114.242 AU/day | 114.158 AU/day | 0.6593 c | 0.7519 days | 342.4445 days |
382 days | 114.408 AU/day | 114.325 AU/day | 0.6603 c | 0.7510 days | 343.1955 days |
383 days | 114.574 AU/day | 114.491 AU/day | 0.6612 c | 0.7502 days | 343.9457 days |
384 days | 114.740 AU/day | 114.657 AU/day | 0.6622 c | 0.7493 days | 344.6950 days |
385 days | 114.905 AU/day | 114.822 AU/day | 0.6632 c | 0.7485 days | 345.4435 days |
386 days | 115.069 AU/day | 114.987 AU/day | 0.6641 c | 0.7476 days | 346.1911 days |
387 days | 115.233 AU/day | 115.151 AU/day | 0.6651 c | 0.7468 days | 346.9379 days |
388 days | 115.397 AU/day | 115.315 AU/day | 0.6660 c | 0.7459 days | 347.6839 days |
389 days | 115.560 AU/day | 115.479 AU/day | 0.6669 c | 0.7451 days | 348.4290 days |
390 days | 115.723 AU/day | 115.642 AU/day | 0.6679 c | 0.7443 days | 349.1732 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
391 days | 115.885 AU/day | 115.804 AU/day | 0.6688 c | 0.7434 days | 349.9167 days |
392 days | 116.047 AU/day | 115.966 AU/day | 0.6698 c | 0.7426 days | 350.6592 days |
393 days | 116.208 AU/day | 116.128 AU/day | 0.6707 c | 0.7417 days | 351.4010 days |
394 days | 116.369 AU/day | 116.289 AU/day | 0.6716 c | 0.7409 days | 352.1419 days |
395 days | 116.530 AU/day | 116.449 AU/day | 0.6726 c | 0.7400 days | 352.8819 days |
396 days | 116.690 AU/day | 116.610 AU/day | 0.6735 c | 0.7392 days | 353.6211 days |
397 days | 116.849 AU/day | 116.769 AU/day | 0.6744 c | 0.7384 days | 354.3595 days |
398 days | 117.008 AU/day | 116.929 AU/day | 0.6753 c | 0.7375 days | 355.0970 days |
399 days | 117.167 AU/day | 117.088 AU/day | 0.6762 c | 0.7367 days | 355.8337 days |
400 days | 117.325 AU/day | 117.246 AU/day | 0.6772 c | 0.7358 days | 356.5695 days |
401 days | 117.483 AU/day | 117.404 AU/day | 0.6781 c | 0.7350 days | 357.3045 days |
402 days | 117.640 AU/day | 117.562 AU/day | 0.6790 c | 0.7342 days | 358.0387 days |
403 days | 117.797 AU/day | 117.719 AU/day | 0.6799 c | 0.7333 days | 358.7720 days |
404 days | 117.953 AU/day | 117.875 AU/day | 0.6808 c | 0.7325 days | 359.5045 days |
405 days | 118.109 AU/day | 118.031 AU/day | 0.6817 c | 0.7316 days | 360.2361 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
406 days | 118.265 AU/day | 118.187 AU/day | 0.6826 c | 0.7308 days | 360.9669 days |
407 days | 118.420 AU/day | 118.343 AU/day | 0.6835 c | 0.7300 days | 361.6969 days |
408 days | 118.575 AU/day | 118.497 AU/day | 0.6844 c | 0.7291 days | 362.4260 days |
409 days | 118.729 AU/day | 118.652 AU/day | 0.6853 c | 0.7283 days | 363.1543 days |
410 days | 118.883 AU/day | 118.806 AU/day | 0.6862 c | 0.7274 days | 363.8817 days |
411 days | 119.036 AU/day | 118.959 AU/day | 0.6871 c | 0.7266 days | 364.6083 days |
412 days | 119.189 AU/day | 119.113 AU/day | 0.6879 c | 0.7258 days | 365.3341 days |
413 days | 119.341 AU/day | 119.265 AU/day | 0.6888 c | 0.7249 days | 366.0590 days |
414 days | 119.494 AU/day | 119.417 AU/day | 0.6897 c | 0.7241 days | 366.7831 days |
415 days | 119.645 AU/day | 119.569 AU/day | 0.6906 c | 0.7233 days | 367.5064 days |
416 days | 119.796 AU/day | 119.721 AU/day | 0.6914 c | 0.7224 days | 368.2288 days |
417 days | 119.947 AU/day | 119.872 AU/day | 0.6923 c | 0.7216 days | 368.9504 days |
418 days | 120.097 AU/day | 120.022 AU/day | 0.6932 c | 0.7208 days | 369.6712 days |
419 days | 120.247 AU/day | 120.172 AU/day | 0.6941 c | 0.7199 days | 370.3911 days |
420 days | 120.397 AU/day | 120.322 AU/day | 0.6949 c | 0.7191 days | 371.1102 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
421 days | 120.546 AU/day | 120.471 AU/day | 0.6958 c | 0.7183 days | 371.8284 days |
422 days | 120.695 AU/day | 120.620 AU/day | 0.6966 c | 0.7174 days | 372.5459 days |
423 days | 120.843 AU/day | 120.769 AU/day | 0.6975 c | 0.7166 days | 373.2624 days |
424 days | 120.991 AU/day | 120.917 AU/day | 0.6984 c | 0.7158 days | 373.9782 days |
425 days | 121.138 AU/day | 121.064 AU/day | 0.6992 c | 0.7149 days | 374.6931 days |
426 days | 121.285 AU/day | 121.211 AU/day | 0.7001 c | 0.7141 days | 375.4072 days |
427 days | 121.431 AU/day | 121.358 AU/day | 0.7009 c | 0.7133 days | 376.1205 days |
428 days | 121.578 AU/day | 121.505 AU/day | 0.7018 c | 0.7124 days | 376.8329 days |
429 days | 121.723 AU/day | 121.650 AU/day | 0.7026 c | 0.7116 days | 377.5445 days |
430 days | 121.869 AU/day | 121.796 AU/day | 0.7034 c | 0.7108 days | 378.2552 days |
431 days | 122.014 AU/day | 121.941 AU/day | 0.7043 c | 0.7099 days | 378.9652 days |
432 days | 122.158 AU/day | 122.086 AU/day | 0.7051 c | 0.7091 days | 379.6743 days |
433 days | 122.302 AU/day | 122.230 AU/day | 0.7059 c | 0.7083 days | 380.3825 days |
434 days | 122.446 AU/day | 122.374 AU/day | 0.7068 c | 0.7074 days | 381.0900 days |
435 days | 122.589 AU/day | 122.517 AU/day | 0.7076 c | 0.7066 days | 381.7966 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
436 days | 122.732 AU/day | 122.661 AU/day | 0.7084 c | 0.7058 days | 382.5024 days |
437 days | 122.874 AU/day | 122.803 AU/day | 0.7093 c | 0.7050 days | 383.2073 days |
438 days | 123.017 AU/day | 122.945 AU/day | 0.7101 c | 0.7041 days | 383.9115 days |
439 days | 123.158 AU/day | 123.087 AU/day | 0.7109 c | 0.7033 days | 384.6148 days |
440 days | 123.299 AU/day | 123.229 AU/day | 0.7117 c | 0.7025 days | 385.3172 days |
441 days | 123.440 AU/day | 123.370 AU/day | 0.7125 c | 0.7016 days | 386.0189 days |
442 days | 123.581 AU/day | 123.511 AU/day | 0.7133 c | 0.7008 days | 386.7197 days |
443 days | 123.721 AU/day | 123.651 AU/day | 0.7141 c | 0.7000 days | 387.4197 days |
444 days | 123.861 AU/day | 123.791 AU/day | 0.7150 c | 0.6992 days | 388.1189 days |
445 days | 124.000 AU/day | 123.930 AU/day | 0.7158 c | 0.6983 days | 388.8172 days |
446 days | 124.139 AU/day | 124.069 AU/day | 0.7166 c | 0.6975 days | 389.5147 days |
447 days | 124.277 AU/day | 124.208 AU/day | 0.7174 c | 0.6967 days | 390.2114 days |
448 days | 124.415 AU/day | 124.346 AU/day | 0.7182 c | 0.6959 days | 390.9073 days |
449 days | 124.553 AU/day | 124.484 AU/day | 0.7190 c | 0.6951 days | 391.6024 days |
450 days | 124.690 AU/day | 124.622 AU/day | 0.7198 c | 0.6942 days | 392.2966 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
451 days | 124.827 AU/day | 124.759 AU/day | 0.7205 c | 0.6934 days | 392.9900 days |
452 days | 124.964 AU/day | 124.896 AU/day | 0.7213 c | 0.6926 days | 393.6826 days |
453 days | 125.100 AU/day | 125.032 AU/day | 0.7221 c | 0.6918 days | 394.3744 days |
454 days | 125.236 AU/day | 125.168 AU/day | 0.7229 c | 0.6909 days | 395.0653 days |
455 days | 125.371 AU/day | 125.303 AU/day | 0.7237 c | 0.6901 days | 395.7554 days |
456 days | 125.506 AU/day | 125.439 AU/day | 0.7245 c | 0.6893 days | 396.4447 days |
457 days | 125.641 AU/day | 125.573 AU/day | 0.7253 c | 0.6885 days | 397.1332 days |
458 days | 125.775 AU/day | 125.708 AU/day | 0.7260 c | 0.6877 days | 397.8209 days |
459 days | 125.909 AU/day | 125.842 AU/day | 0.7268 c | 0.6868 days | 398.5077 days |
460 days | 126.042 AU/day | 125.976 AU/day | 0.7276 c | 0.6860 days | 399.1938 days |
461 days | 126.175 AU/day | 126.109 AU/day | 0.7283 c | 0.6852 days | 399.8790 days |
462 days | 126.308 AU/day | 126.242 AU/day | 0.7291 c | 0.6844 days | 400.5634 days |
463 days | 126.441 AU/day | 126.374 AU/day | 0.7299 c | 0.6836 days | 401.2470 days |
464 days | 126.573 AU/day | 126.507 AU/day | 0.7306 c | 0.6828 days | 401.9297 days |
465 days | 126.704 AU/day | 126.638 AU/day | 0.7314 c | 0.6819 days | 402.6117 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
466 days | 126.835 AU/day | 126.770 AU/day | 0.7322 c | 0.6811 days | 403.2928 days |
467 days | 126.966 AU/day | 126.901 AU/day | 0.7329 c | 0.6803 days | 403.9731 days |
468 days | 127.097 AU/day | 127.032 AU/day | 0.7337 c | 0.6795 days | 404.6526 days |
469 days | 127.227 AU/day | 127.162 AU/day | 0.7344 c | 0.6787 days | 405.3313 days |
470 days | 127.357 AU/day | 127.292 AU/day | 0.7352 c | 0.6779 days | 406.0092days |
471 days | 127.486 AU/day | 127.421 AU/day | 0.7359 c | 0.6771 days | 406.6863 days |
472 days | 127.615 AU/day | 127.551 AU/day | 0.7367 c | 0.6763 days | 407.3625 days |
473 days | 127.744 AU/day | 127.679 AU/day | 0.7374 c | 0.6754 days | 408.0379 days |
474 days | 127.872 AU/day | 127.808 AU/day | 0.7382 c | 0.6746 days | 408.7126 days |
475 days | 128.000 AU/day | 127.936 AU/day | 0.7389 c | 0.6738 days | 409.3864 days |
476 days | 128.128 AU/day | 128.064 AU/day | 0.7396 c | 0.6730 days | 410.0594 days |
477 days | 128.255 AU/day | 128.191 AU/day | 0.7404 c | 0.6722 days | 410.7316 days |
478 days | 128.382 AU/day | 128.318 AU/day | 0.7411 c | 0.6714 days | 411.4030 days |
479 days | 128.508 AU/day | 128.445 AU/day | 0.7418 c | 0.6706 days | 412.0736 days |
480 days | 128.634 AU/day | 128.571 AU/day | 0.7426 c | 0.6698 days | 412.7434 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
481 days | 128.760 AU/day | 128.697 AU/day | 0.7433 c | 0.6690 days | 413.4123 days |
482 days | 128.886 AU/day | 128.823 AU/day | 0.7440 c | 0.6682 days | 414.0805 days |
483 days | 129.011 AU/day | 128.948 AU/day | 0.7447 c | 0.6674 days | 414.7478 days |
484 days | 129.135 AU/day | 129.073 AU/day | 0.7455 c | 0.6665 days | 415.4144 days |
485 days | 129.260 AU/day | 129.198 AU/day | 0.7462 c | 0.6657 days | 416.0801 days |
486 days | 129.384 AU/day | 129.322 AU/day | 0.7469 c | 0.6649 days | 416.7451 days |
487 days | 129.507 AU/day | 129.446 AU/day | 0.7476 c | 0.6641 days | 417.4092 days |
488 days | 129.631 AU/day | 129.569 AU/day | 0.7483 c | 0.6633 days | 418.0725 days |
489 days | 129.754 AU/day | 129.692 AU/day | 0.7490 c | 0.6625 days | 418.7351 days |
490 days | 129.876 AU/day | 129.815 AU/day | 0.7497 c | 0.6617 days | 419.3968 days |
491 days | 129.999 AU/day | 129.937 AU/day | 0.7505 c | 0.6609 days | 420.0577 days |
492 days | 130.121 AU/day | 130.060 AU/day | 0.7512 c | 0.6601 days | 420.7178 days |
493 days | 130.242 AU/day | 130.181 AU/day | 0.7519 c | 0.6593 days | 421.3771 days |
494 days | 130.363 AU/day | 130.303 AU/day | 0.7526 c | 0.6585 days | 422.0357 days |
495 days | 130.484 AU/day | 130.424 AU/day | 0.7533 c | 0.6577 days | 422.6934 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
496 days | 130.605 AU/day | 130.545 AU/day | 0.7540 c | 0.6569 days | 423.3503 days |
497 days | 130.725 AU/day | 130.665 AU/day | 0.7547 c | 0.6561 days | 424.0064days |
498 days | 130.845 AU/day | 130.785 AU/day | 0.7553 c | 0.6553 days | 424.6617 days |
499 days | 130.964 AU/day | 130.905 AU/day | 0.7560 c | 0.6545 days | 425.3163 days |
500 days | 131.084 AU/day | 131.024 AU/day | 0.7567 c | 0.6537 days | 425.9700 days |
501 days | 131.203 AU/day | 131.143 AU/day | 0.7574 c | 0.6529 days | 426.6229 days |
502 days | 131.321 AU/day | 131.262 AU/day | 0.7581 c | 0.6521 days | 427.2751 days |
503 days | 131.439 AU/day | 131.380 AU/day | 0.7588 c | 0.6513 days | 427.9264 days |
504 days | 131.557 AU/day | 131.498 AU/day | 0.7595 c | 0.6505 days | 428.5769 days |
505 days | 131.675 AU/day | 131.616 AU/day | 0.7601 c | 0.6497 days | 429.2267 days |
506 days | 131.792 AU/day | 131.733 AU/day | 0.7608 c | 0.6490 days | 429.8757 days |
507 days | 131.909 AU/day | 131.850 AU/day | 0.7615 c | 0.6482 days | 430.5238 days |
508 days | 132.025 AU/day | 131.967 AU/day | 0.7622 c | 0.6474 days | 431.1712 days |
509 days | 132.141 AU/day | 132.083 AU/day | 0.7628 c | 0.6466 days | 431.8178 days |
510 days | 132.257 AU/day | 132.199 AU/day | 0.7635 c | 0.6458 days | 432.4635 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
511 days | 132.373 AU/day | 132.315 AU/day | 0.7642 c | 0.6450 days | 433.1085 days |
512 days | 132.488 AU/day | 132.430 AU/day | 0.7649 c | 0.6442 days | 433.7527 days |
513 days | 132.603 AU/day | 132.546 AU/day | 0.7655 c | 0.6434 days | 434.3962 days |
514 days | 132.718 AU/day | 132.660 AU/day | 0.7662 c | 0.6426 days | 435.0388 days |
515 days | 132.832 AU/day | 132.775 AU/day | 0.7668 c | 0.6418 days | 435.6806 days |
516 days | 132.946 AU/day | 132.889 AU/day | 0.7675 c | 0.6410 days | 436.3217 days |
517 days | 133.059 AU/day | 133.003 AU/day | 0.7682 c | 0.6403 days | 436.9619 days |
518 days | 133.173 AU/day | 133.116 AU/day | 0.7688 c | 0.6395 days | 437.6014 days |
519 days | 133.286 AU/day | 133.229 AU/day | 0.7695 c | 0.6387 days | 438.2401 days |
520 days | 133.398 AU/day | 133.342 AU/day | 0.7701 c | 0.6379 days | 438.8780 days |
521 days | 133.511 AU/day | 133.454 AU/day | 0.7708 c | 0.6371 days | 439.5151 days |
522 days | 133.623 AU/day | 133.567 AU/day | 0.7714 c | 0.6363 days | 440.1515 days |
523 days | 133.734 AU/day | 133.678 AU/day | 0.7721 c | 0.6355 days | 440.7870 days |
524 days | 133.846 AU/day | 133.790 AU/day | 0.7727 c | 0.6348 days | 441.4218 days |
525 days | 133.957 AU/day | 133.901 AU/day | 0.7733 c | 0.6340 days | 442.0558 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
526 days | 134.067 AU/day | 134.012 AU/day | 0.7740 c | 0.6332 days | 442.6890 days |
527 days | 134.178 AU/day | 134.123 AU/day | 0.7746 c | 0.6324 days | 443.3214 days |
528 days | 134.288 AU/day | 134.233 AU/day | 0.7753 c | 0.6316 days | 443.9530 days |
529 days | 134.398 AU/day | 134.343 AU/day | 0.7759 c | 0.6309 days | 444.5839 days |
530 days | 134.507 AU/day | 134.453 AU/day | 0.7765 c | 0.6301 days | 445.2139 days |
531 days | 134.616 AU/day | 134.562 AU/day | 0.7772 c | 0.6293 days | 445.8432 days |
532 days | 134.725 AU/day | 134.671 AU/day | 0.7778 c | 0.6285 days | 446.4718 days |
533 days | 134.834 AU/day | 134.780 AU/day | 0.7784 c | 0.6277 days | 447.0995 days |
534 days | 134.942 AU/day | 134.888 AU/day | 0.7790 c | 0.6270 days | 447.7265 days |
535 days | 135.050 AU/day | 134.996 AU/day | 0.7797 c | 0.6262 days | 448.3527 days |
536 days | 135.158 AU/day | 135.104 AU/day | 0.7803 c | 0.6254 days | 448.9781 days |
537 days | 135.265 AU/day | 135.211 AU/day | 0.7809 c | 0.6246 days | 449.6027 days |
538 days | 135.372 AU/day | 135.319 AU/day | 0.7815 c | 0.6239 days | 450.2266 days |
539 days | 135.479 AU/day | 135.426 AU/day | 0.7822 c | 0.6231 days | 450.8497 days |
540 days | 135.585 AU/day | 135.532 AU/day | 0.7828 c | 0.6223 days | 451.4720 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
541 days | 135.692 AU/day | 135.638 AU/day | 0.7834 c | 0.6215 days | 452.0935 days |
542 days | 135.797 AU/day | 135.744 AU/day | 0.7840 c | 0.6208 days | 452.7143 days |
543 days | 135.903 AU/day | 135.850 AU/day | 0.7846 c | 0.6200 days | 453.3343 days |
544 days | 136.008 AU/day | 135.956 AU/day | 0.7852 c | 0.6192 days | 453.9535 days |
545 days | 136.113 AU/day | 136.061 AU/day | 0.7858 c | 0.6185 days | 454.5720 days |
546 days | 136.218 AU/day | 136.165 AU/day | 0.7864 c | 0.6177 days | 455.1897 days |
547 days | 136.322 AU/day | 136.270 AU/day | 0.7870 c | 0.6169 days | 455.8066 days |
548 days | 136.426 AU/day | 136.374 AU/day | 0.7876 c | 0.6161 days | 456.4227 days |
549 days | 136.530 AU/day | 136.478 AU/day | 0.7882 c | 0.6154 days | 457.0381 days |
550 days | 136.633 AU/day | 136.582 AU/day | 0.7888 c | 0.6146 days | 457.6527 days |
551 days | 136.737 AU/day | 136.685 AU/day | 0.7894 c | 0.6138 days | 458.2666 days |
552 days | 136.840 AU/day | 136.788 AU/day | 0.7900 c | 0.6131 days | 458.8797 days |
553 days | 136.942 AU/day | 136.891 AU/day | 0.7906 c | 0.6123 days | 459.4920 days |
554 days | 137.044 AU/day | 136.993 AU/day | 0.7912 c | 0.6116 days | 460.1035 days |
555 days | 137.146 AU/day | 137.095 AU/day | 0.7918 c | 0.6108 days | 460.7143 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
556 days | 137.248 AU/day | 137.197 AU/day | 0.7924 c | 0.6100 days | 461.3243 days |
557 days | 137.350 AU/day | 137.299 AU/day | 0.7930 c | 0.6093 days | 461.9336 days |
558 days | 137.451 AU/day | 137.400 AU/day | 0.7936 c | 0.6085 days | 462.5421 days |
559 days | 137.552 AU/day | 137.501 AU/day | 0.7941 c | 0.6077 days | 463.1498 days |
560 days | 137.652 AU/day | 137.602 AU/day | 0.7947 c | 0.6070 days | 463.7568 days |
561 days | 137.753 AU/day | 137.702 AU/day | 0.7953 c | 0.6062 days | 464.3630 days |
562 days | 137.853 AU/day | 137.803 AU/day | 0.7959 c | 0.6055 days | 464.9685 days |
563 days | 137.952 AU/day | 137.902 AU/day | 0.7965 c | 0.6047 days | 465.5732 days |
564 days | 138.052 AU/day | 138.002 AU/day | 0.7970 c | 0.6039 days | 466.1771 days |
565 days | 138.151 AU/day | 138.101 AU/day | 0.7976 c | 0.6032 days | 466.7803 days |
566 days | 138.250 AU/day | 138.200 AU/day | 0.7982 c | 0.6024 days | 467.3827 days |
567 days | 138.348 AU/day | 138.299 AU/day | 0.7987 c | 0.6017 days | 467.9844 days |
568 days | 138.447 AU/day | 138.398 AU/day | 0.7993 c | 0.6009 days | 468.5853 days |
569 days | 138.545 AU/day | 138.496 AU/day | 0.7999 c | 0.6002 days | 469.1854 days |
570 days | 138.643 AU/day | 138.594 AU/day | 0.8004 c | 0.5994 days | 469.7848 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
571 days | 138.740 AU/day | 138.691 AU/day | 0.8010 c | 0.5986 days | 470.3835 days |
572 days | 138.837 AU/day | 138.789 AU/day | 0.8016 c | 0.5979 days | 470.9814 days |
573 days | 138.934 AU/day | 138.886 AU/day | 0.8021 c | 0.5971 days | 471.5785 days |
574 days | 139.031 AU/day | 138.983 AU/day | 0.8027 c | 0.5964 days | 472.1749 days |
575 days | 139.127 AU/day | 139.079 AU/day | 0.8033 c | 0.5956 days | 472.7705 days |
576 days | 139.224 AU/day | 139.175 AU/day | 0.8038 c | 0.5949 days | 473.3654 days |
577 days | 139.319 AU/day | 139.271 AU/day | 0.8044 c | 0.5941 days | 473.9596 days |
578 days | 139.415 AU/day | 139.367 AU/day | 0.8049 c | 0.5934 days | 474.5530 days |
579 days | 139.510 AU/day | 139.463 AU/day | 0.8055 c | 0.5926 days | 475.1456 days |
580 days | 139.605 AU/day | 139.558 AU/day | 0.8060 c | 0.5919 days | 475.7375 days |
581 days | 139.700 AU/day | 139.653 AU/day | 0.8066 c | 0.5911 days | 476.3286 days |
582 days | 139.795 AU/day | 139.747 AU/day | 0.8071 c | 0.5904 days | 476.9190 days |
583 days | 139.889 AU/day | 139.842 AU/day | 0.8077 c | 0.5897 days | 477.5087 days |
584 days | 139.983 AU/day | 139.936 AU/day | 0.8082 c | 0.5889 days | 478.0976 days |
585 days | 140.077 AU/day | 140.030 AU/day | 0.8087 c | 0.5882 days | 478.6858 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
586 days | 140.170 AU/day | 140.123 AU/day | 0.8093 c | 0.5874 days | 479.2732 days |
587 days | 140.263 AU/day | 140.217 AU/day | 0.8098 c | 0.5867 days | 479.8599 days |
588 days | 140.356 AU/day | 140.310 AU/day | 0.8104 c | 0.5859 days | 480.4458 days |
589 days | 140.449 AU/day | 140.402 AU/day | 0.8109 c | 0.5852 days | 481.0310 days |
590 days | 140.541 AU/day | 140.495 AU/day | 0.8114 c | 0.5845 days | 481.6154 days |
591 days | 140.633 AU/day | 140.587 AU/day | 0.8120 c | 0.5837 days | 482.1991 days |
592 days | 140.725 AU/day | 140.679 AU/day | 0.8125 c | 0.5830 days | 482.7821 days |
593 days | 140.817 AU/day | 140.771 AU/day | 0.8130 c | 0.5822 days | 483.3643 days |
594 days | 140.908 AU/day | 140.863 AU/day | 0.8136 c | 0.5815 days | 483.9458 days |
595 days | 140.999 AU/day | 140.954 AU/day | 0.8141 c | 0.5808 days | 484.5266 days |
596 days | 141.090 AU/day | 141.045 AU/day | 0.8146 c | 0.5800 days | 485.1066 days |
597 days | 141.181 AU/day | 141.135 AU/day | 0.8151 c | 0.5793 days | 485.6859 days |
598 days | 141.271 AU/day | 141.226 AU/day | 0.8157 c | 0.5785 days | 486.2644 days |
599 days | 141.361 AU/day | 141.316 AU/day | 0.8162 c | 0.5778 days | 486.8422 days |
600 days | 141.451 AU/day | 141.406 AU/day | 0.8167 c | 0.5771 days | 487.4193 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
601 days | 141.541 AU/day | 141.496 AU/day | 0.8172 c | 0.5763 days | 487.9957 days |
602 days | 141.630 AU/day | 141.585 AU/day | 0.8177 c | 0.5756 days | 488.5713 days |
603 days | 141.719 AU/day | 141.674 AU/day | 0.8182 c | 0.5749 days | 489.1461 days |
604 days | 141.808 AU/day | 141.763 AU/day | 0.8188 c | 0.5741 days | 489.7203 days |
605 days | 141.896 AU/day | 141.852 AU/day | 0.8193 c | 0.5734 days | 490.2937 days |
606 days | 141.985 AU/day | 141.940 AU/day | 0.8198 c | 0.5727 days | 490.8664 days |
607 days | 142.073 AU/day | 142.029 AU/day | 0.8203 c | 0.5720 days | 491.4383 days |
608 days | 142.160 AU/day | 142.117 AU/day | 0.8208 c | 0.5712 days | 492.0095 days |
609 days | 142.248 AU/day | 142.204 AU/day | 0.8213 c | 0.5705 days | 492.5800 days |
610 days | 142.335 AU/day | 142.292 AU/day | 0.8218 c | 0.5698 days | 493.1498 days |
611 days | 142.422 AU/day | 142.379 AU/day | 0.8223 c | 0.5690 days | 493.7188 days |
612 days | 142.509 AU/day | 142.466 AU/day | 0.8228 c | 0.5683 days | 494.2872 days |
613 days | 142.596 AU/day | 142.552 AU/day | 0.8233 c | 0.5676 days | 494.8548 days |
614 days | 142.682 AU/day | 142.639 AU/day | 0.8238 c | 0.5669 days | 495.4216 days |
615 days | 142.768 AU/day | 142.725 AU/day | 0.8243 c | 0.5661 days | 495.9878 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
616 days | 142.854 AU/day | 142.811 AU/day | 0.8248 c | 0.5654 days | 496.5532 days |
617 days | 142.940 AU/day | 142.897 AU/day | 0.8253 c | 0.5647 days | 497.1179 days |
618 days | 143.025 AU/day | 142.982 AU/day | 0.8258 c | 0.5640 days | 497.6818 days |
619 days | 143.110 AU/day | 143.068 AU/day | 0.8263 c | 0.5632 days | 498.2451 days |
620 days | 143.195 AU/day | 143.153 AU/day | 0.8268 c | 0.5625 days | 498.8076 days |
621 days | 143.280 AU/day | 143.237 AU/day | 0.8273 c | 0.5618 days | 499.3694 days |
622 days | 143.364 AU/day | 143.322 AU/day | 0.8278 c | 0.5611 days | 499.9305 days |
623 days | 143.448 AU/day | 143.406 AU/day | 0.8282 c | 0.5604 days | 500.4909days |
624 days | 143.532 AU/day | 143.490 AU/day | 0.8287 c | 0.5597 days | 501.0505 days |
625 days | 143.616 AU/day | 143.574 AU/day | 0.8292 c | 0.5589 days | 501.6095 days |
626 days | 143.699 AU/day | 143.658 AU/day | 0.8297 c | 0.5582 days | 502.1677 days |
627 days | 143.782 AU/day | 143.741 AU/day | 0.8302 c | 0.5575 days | 502.7252 days |
628 days | 143.865 AU/day | 143.824 AU/day | 0.8307 c | 0.5568 days | 503.2820 days |
629 days | 143.948 AU/day | 143.907 AU/day | 0.8311 c | 0.5561 days | 503.8380days |
630 days | 144.031 AU/day | 143.989 AU/day | 0.8316 c | 0.5554 days | 504.3934 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
631 days | 144.113 AU/day | 144.072 AU/day | 0.8321 c | 0.5546 days | 504.9480days |
632 days | 144.195 AU/day | 144.154 AU/day | 0.8326 c | 0.5539 days | 505.5020 days |
633 days | 144.277 AU/day | 144.236 AU/day | 0.8330 c | 0.5532 days | 506.0552 days |
634 days | 144.358 AU/day | 144.318 AU/day | 0.8335 c | 0.5525 days | 506.6077 days |
635 days | 144.440 AU/day | 144.399 AU/day | 0.8340 c | 0.5518 days | 507.1595 days |
636 days | 144.521 AU/day | 144.480 AU/day | 0.8344 c | 0.5511 days | 507.7106 days |
637 days | 144.602 AU/day | 144.561 AU/day | 0.8349 c | 0.5504 days | 508.2610 days |
638 days | 144.682 AU/day | 144.642 AU/day | 0.8354 c | 0.5497 days | 508.8106 days |
639 days | 144.763 AU/day | 144.723 AU/day | 0.8358 c | 0.5490 days | 509.3596 days |
640 days | 144.843 AU/day | 144.803 AU/day | 0.8363 c | 0.5483 days | 509.9078 days |
641 days | 144.923 AU/day | 144.883 AU/day | 0.8368 c | 0.5475 days | 510.4554 days |
642 days | 145.003 AU/day | 144.963 AU/day | 0.8372 c | 0.5468 days | 511.0022 days |
643 days | 145.082 AU/day | 145.043 AU/day | 0.8377 c | 0.5461 days | 511.5484 days |
644 days | 145.162 AU/day | 145.122 AU/day | 0.8382 c | 0.5454 days | 512.0938 days |
645 days | 145.241 AU/day | 145.201 AU/day | 0.8386 c | 0.5447 days | 512.6385 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
646 days | 145.320 AU/day | 145.280 AU/day | 0.8391 c | 0.5440 days | 513.1826 days |
647 days | 145.398 AU/day | 145.359 AU/day | 0.8395 c | 0.5433 days | 513.7259 days |
648 days | 145.477 AU/day | 145.437 AU/day | 0.8400 c | 0.5426 days | 514.2685 days |
649 days | 145.555 AU/day | 145.516 AU/day | 0.8404 c | 0.5419 days | 514.8104 days |
650 days | 145.633 AU/day | 145.594 AU/day | 0.8409 c | 0.5412 days | 515.3517 days |
651 days | 145.711 AU/day | 145.672 AU/day | 0.8413 c | 0.5405 days | 515.8922 days |
652 days | 145.788 AU/day | 145.749 AU/day | 0.8418 c | 0.5398 days | 516.4320 days |
653 days | 145.865 AU/day | 145.827 AU/day | 0.8422 c | 0.5391 days | 516.9712 days |
654 days | 145.942 AU/day | 145.904 AU/day | 0.8427 c | 0.5384 days | 517.5096 days |
655 days | 146.019 AU/day | 145.981 AU/day | 0.8431 c | 0.5377 days | 518.0473 days |
656 days | 146.096 AU/day | 146.058 AU/day | 0.8436 c | 0.5370 days | 518.5844 days |
657 days | 146.172 AU/day | 146.134 AU/day | 0.8440 c | 0.5363 days | 519.1207 days |
658 days | 146.249 AU/day | 146.211 AU/day | 0.8444 c | 0.5356 days | 519.6564 days |
659 days | 146.325 AU/day | 146.287 AU/day | 0.8449 c | 0.5350 days | 520.1913 days |
660 days | 146.400 AU/day | 146.363 AU/day | 0.8453 c | 0.5343 days | 520.7256 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
661 days | 146.476 AU/day | 146.438 AU/day | 0.8458 c | 0.5336 days | 521.2591 days |
662 days | 146.551 AU/day | 146.514 AU/day | 0.8462 c | 0.5329 days | 521.7920 days |
663 days | 146.627 AU/day | 146.589 AU/day | 0.8466 c | 0.5322 days | 522.3242 days |
664 days | 146.702 AU/day | 146.664 AU/day | 0.8471 c | 0.5315 days | 522.8557 days |
665 days | 146.776 AU/day | 146.739 AU/day | 0.8475 c | 0.5308 days | 523.3865 days |
666 days | 146.851 AU/day | 146.814 AU/day | 0.8479 c | 0.5301 days | 523.9166 days |
667 days | 146.925 AU/day | 146.888 AU/day | 0.8484 c | 0.5294 days | 524.4461 days |
668 days | 146.999 AU/day | 146.962 AU/day | 0.8488 c | 0.5287 days | 524.9748 days |
669 days | 147.073 AU/day | 147.036 AU/day | 0.8492 c | 0.5281 days | 525.5029 days |
670 days | 147.147 AU/day | 147.110 AU/day | 0.8496 c | 0.5274 days | 526.0302 days |
671 days | 147.220 AU/day | 147.183 AU/day | 0.8501 c | 0.5267 days | 526.5569 days |
672 days | 147.293 AU/day | 147.257 AU/day | 0.8505 c | 0.5260 days | 527.0829 days |
673 days | 147.367 AU/day | 147.330 AU/day | 0.8509 c | 0.5253 days | 527.6083 days |
674 days | 147.439 AU/day | 147.403 AU/day | 0.8513 c | 0.5246 days | 528.1329 days |
675 days | 147.512 AU/day | 147.476 AU/day | 0.8517 c | 0.5240 days | 528.6568 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 | √(1-dc2) | ΣIncr. |
676 days | 147.584 AU/day | 147.548 AU/day | 0.8522 c | 0.5233 days | 529.1801 days |
677 days | 147.657 AU/day | 147.621 AU/day | 0.8526 c | 0.5226 days | 529.7027 days |
678 days | 147.729 AU/day | 147.693 AU/day | 0.8530 c | 0.5219 days | 530.2246 days |
679 days | 147.801 AU/day | 147.765 AU/day | 0.8534 c | 0.5212 days | 530.7459 days |
680 days | 147.872 AU/day | 147.836 AU/day | 0.8538 c | 0.5206 days | 531.2664 days |
681 days | 147.944 AU/day | 147.908 AU/day | 0.8542 c | 0.5199 days | 531.7863 days |
682 days | 148.015 AU/day | 147.979 AU/day | 0.8547 c | 0.5192 days | 532.3055 days |
683 days | 148.086 AU/day | 148.050 AU/day | 0.8551 c | 0.5185 days | 532.8240 days |
684 days | 148.157 AU/day | 148.121 AU/day | 0.8555 c | 0.5178 days | 533.3418 days |
685 days | 148.227 AU/day | 148.192 AU/day | 0.8559 c | 0.5172 days | 533.8590 days |
686 days | 148.298 AU/day | 148.262 AU/day | 0.8563 c | 0.5165 days | 534.3755 days |
687 days | 148.368 AU/day | 148.333 AU/day | 0.8567 c | 0.5158 days | 534.8913 days |
688 days | 148.438 AU/day | 148.403 AU/day | 0.8571 c | 0.5151 days | 535.4065 days |
689 days | 148.508 AU/day | 148.473 AU/day | 0.8575 c | 0.5145 days | 535.9209 days |
690 days | 148.577 AU/day | 148.543 AU/day | 0.8579 c | 0.5138 days | 536.4347 days |
t | Spot Vel | Ave AU/dy | Ave dc | Incr. | Cum. |
691 days | 148.647 AU/day | 148.612 AU/day | 0.8583 c | 0.5131 days | 536.9479 days |
692 days | 148.716 AU/day | 148.681 AU/day | 0.8587 c | 0.5125 days | 537.4603 days |
693 days | 148.785 AU/day | 148.751 AU/day | 0.8591 c | 0.5118 days | 537.9721 days |
694 days | 148.854 AU/day | 148.820 AU/day | 0.8595 c | 0.5111 days | 538.4832 days |
695 days | 148.923 AU/day | 148.888 AU/day | 0.8599 c | 0.5105 days | 538.9937 days |
696 days | 148.991 AU/day | 148.957 AU/day | 0.8603 c | 0.5098 days | 539.5035 days |
697 days | 149.059 AU/day | 149.025 AU/day | 0.8607 c | 0.5091 days | 540.0126 days |
698 days | 149.127 AU/day | 149.093 AU/day | 0.8611 c | 0.5085 days | 540.5211 days |
699 days | 149.195 AU/day | 149.161 AU/day | 0.8615 c | 0.5078 days | 541.0289 days |
700 days | 149.263 AU/day | 149.229 AU/day | 0.8619 c | 0.5071 days | 541.5360 days |
701 days | 149.330 AU/day | 149.297 AU/day | 0.8623 c | 0.5065 days | 542.0424 days |
702 days | 149.398 AU/day | 149.364 AU/day | 0.8627 c | 0.5058 days | 542.5482 days |
703 days | 149.465 AU/day | 149.431 AU/day | 0.8630 c | 0.5051 days | 543.0534 days |
704 days | 149.532 AU/day | 149.498 AU/day | 0.8634 c | 0.5045 days | 543.5578 days |
705 days | 149.598 AU/day | 149.565 AU/day | 0.8638 c | 0.5038 days | 544.0616 days |
706 days | 149.665 AU/day | 149.632 AU/day | 0.8642 c | 0.5032 days | 544.5648 days |
707 days | 149.731 AU/day | 149.698 AU/day | 0.8646 c | 0.5025 days | 545.0673 days |
708 days | 149.798 AU/day | 149.764 AU/day | 0.8650 c | 0.5018 days | 545.5691 days |
709 days | 149.864 AU/day | 149.831 AU/day | 0.8653 c | 0.5012 days | 546.0703 days |
710 days | 149.929 AU/day | 149.896 AU/day | 0.8657 c | 0.5005 days | 546.5708 days |
711 days | 149.995 AU/day | 149.962 AU/day | 0.8661 c | 0.4999 days | 547.0707 days |
712 days | 150.060 AU/day | 150.028 AU/day | 0.8665 c | 0.4992 days | 547.5699 days |
t | c[1 - Rct] | (Vt-1+Vt)
2 | VAve
173.145 |
√(1-dc2) |
ΣIncr. |
|
1) G-force for a sec.
Let an object free fall for one second near Earth's surface, and it will gain a velocity of about 10 m/sec (actually 9.8065 m/s). Let it continue free fall for a 2nd and 3rd second, and velocity will become about 20 m/s and 30 m/s respectively. SUMMARY: Velocity will increase about 10 m/s for every second of free fall.
2) G-force for a day
One day has 86,400 seconds
24 hours
day | × | 60 min
hr | × | 60 sec
min | = | 86,400 sec
day |
If a vessel can g-force accelerate for an entire day, it will achieve a very high velocity of 847,281.6 m/sec.
86,400 sec | × | 9.8065 m
sec | = | 847,281.6 m
sec |
This velocity can be conveniently converted into other equivalent values.
847,281.6 m
sec | × | km
1,000 m | = | 847.28 km
sec |
847.281.6 km
sec | × | c
299,792.458 km | = | 0.2826%c |
Daily Difference (Δ). After one day of g-force propulsion, vessel achieves a small portion of light speed. Thought Experiment (TE) calls this percentage the daily difference.
Δ= 0.2826%c
3) G-force for 712 days
Phase 1. Accelerate for 712 days at g-force. This achieves a high cruise speed to shorten flight duration and also simulates gravity for contents and occupants. Since g-force comes from particle flow leaving aft of vessel, occupants feel a gravity like force likely from decks (axial planes intersecting the longitudinal axis). Thus, "up" is toward forward end of vessel which is pointing toward AC, our destination.
Remainder. In contrast to the daily difference, TE designates the daily remainder (Rc):
as the gigantic portion of light speed not yet achieved after one day of g-force.
Einstein tells us in his Special Theory of Relativity that light speed (c=299,792.458 k/s) is fixed regardless of observer's speed. Thus, Earth observer and vessel observer both observe c as same value even though Earth observes continuously, increasing velocity of g-force vessel.
TE reconciles this paradox via following exponential which calculates vessel velocities to ever approach c but never attain it.
To obtain velocities as Astronomical Units per day (AU/dy), a convenient measure for g-force interplanetary travel, restate value of c:
c | = | 299,792.458 km
sec | × | 86,400 sec
day | × | AU
149,597,871 km | = | 173.145 AU
day |
EXAMPLE: After 712 days of g-force acceleration:
VShip | = | 173.145 AU
day | × | [1 - .997174365] | = | 150.060 AU
day | = | 86.7%c |
4) Cruise for several years
In this example of an interstellar profile, g-force vessel accelerates for 712 days to achieve a cruise velocity of VCru = 86.7%c. To conserve fuel, vessel then terminates propulsion and maintains earth like gravity via centrifugal force by spinning vessel about its longitudinal axis at carefully planned angular velocity.
Phase 2. Cruise for 909.5 days (about 2.5 years) at .866c. TE assumes that even with augmentation from snowballs, vessel must still conserve fuel. Thus, vessel must "cruise" at constant speed for middle portion of flight; without G-force acceleration, flight planners must determine another way to simulate Earth gravity. This is done by spinning craft in such a manner to produce centrifugal g-force against inside of outer hull. Thus, from Phase I to Phase II,, ship must transform from living area on decks (floors perpendicular to exhaust flow of particles from aft end of vessel) to living area on hull. Thus, occupants must quickly adjust from decks being floors and hull being wall to decks becoming walls and hull becoming floor. Thus, "up" is toward the central, longitudinal axis of the cylindrical vessel. (While Phase I's up would be parallel for all occupants, Phase II's up would differ for every occupant.)
5) Reverse g-force for final 712 days
During the cruise phase, the vessel makes excellent time due to its relativistic speed ( 86.67%c = 259,818.131 km/sec); however, the g-force vessel must slow down ( to a few km/sec) to approach and orbit objects in Alpha Centauri system.
Thus, TE envisions vessel again powering the G-force propulsion system to reverse the propulsion vector; thus, the high energy exhaust particles would flow in the direction of flight to cause a decelerating effect. It's axiomatic that decelerating at g-force should take same time/distance as accelerating at g-force. Since the first year of g-force acceleration took 1.11 LY, the voyage's final year would consist of g-force deceleration for the same distance.
Phase 3. Decelerate for 712 day at g-force; ship must slowdown from enormous velocity (86.6% of light speed) to operational velocity required to maneuver around AC system. Thus, hull becomes a wall again, and decks once more becomes a floor. Of course, exhaust flow must point toward destination because the exhaust force must now counteract motion of vessel. (Of course, "up" once again points forward, but the forward end of vessel is now pointing toward Sol, our place of departure.)
6) Cruise Time Dilation
Since we assume an interstellar vessel travels at constant relativistic speed during the cruise portion of flight, it is a straight forward procedure to simply calculate time dilation during cruise portion of voyage.
Previous chapters provide procedures for determining distance during G-force accelerations.
For 712 days of G-force acceleration, TE determines distance to be 1.11 LY. For 712 days of G-force deceleration, TE assumes equal distance. Since observed distance to AC is 4.38 LY, we assume cruise distance:
dCru = dTtl - dAcc - dDec
|
dCru = 4.38 LY -1.11 LY - 1.11 LY = 2.16 LY
|
Cruise Time can be easily expressed as both normal time as well as relativistic.
Normal Time |
At vessel velocity of 86.66%c,
Earth bound observer measures 1.155 years
for each LY of cruise distance.
| tCru=dCru/VCru
tCru=2.16 LY÷.8666c = 2.495 yrs |
Relativistic Time |
Due to relativistic effects,
ship bound chronometer measures:0.5 yrs
for each year observed by Earth.
| tr= tCru×√(1-VCru2/c2)
tr= 2.495 yrs×0.5=1.25yr |
However, cruise is only part of the interstellar flight, and time dilation also happens during acceleration and deceleration phases.
7) Time Dilation During Acceleration
Computing time dilation for g-force acceleration more difficult because such velocity is ever increasing. Thus, TE uses following technique to approximate time dilation for each day of acceleration.
Determine Spot Velocities. To determine spot velocities for end of each travel day (which TE also assumes as the initial spot velocity for next travel day), TE uses following formula as previously described.
Determine Daily Average. To determine average velocity for each acceleration day, TE determines mid velocity. Next, TE converts this average from AU/day to decimal light speed (c), designated as dc.
Convert vessel velocities from decimal light speed to/from AU/day with conversion constant: c = 173.145 AU/day.
8) Time Dilation During Deceleration Since TE assumes that acceleration duration equals deceleration duration, TE further assumes that corresponding time dilations are also equal.
Determine Daily Dilation. Following diagram shows daily dilations after 365 days of g-force. Of course, we assume that interstellar vessel can even accelerate well beyond 365 days as fuel permits.
9) Total Time Dilation
For total time dilation ( tr-Ttl), consider relativistic time shrinkage during all three phases of interstellar voyage: g-force acceleration, cruise, and g-force deceleration.
1) ACCELERATION PHASE |
Normal Acceleration
Time |
Earth observer watches
g-force vessel accelerate
for 712 days
for 86.6%c for 1.11 LY.
| Given: tAcc = 712 days |
Relativistic Acceleration
Time |
Ship bound observer
measures duration
of 547.6 days.(1.5 years).
| tr-Acc= Σ√(1-dc2)
tr-Acc= 547.6 dy = 1.5 yr |
2) CRUISE PHASE |
Normal Cruise
Time |
Vessel velocity = 86.66%c,
Earth bound observer
measures duration of 2.5 yr
for 2.16 LY cruise distance.
| tCru=dCru/VCru
tCru=2.16LY÷.866c=2.5yr |
Relativistic Cruise
Time |
Due to relativistic effects,
ship bound chronometer
measures:1.25 yrs
during cruise phase.
| tr-Cru= tCru×√(1-VCru2/c2)
tr-Cru= 2.5 yr×0.5 = 1.25 yr |
3) DECELERATION PHASE |
Normal Deceleration
Time |
Earth bound observer
watches g-force vessel
decelerate for 712 days.
| tDec = tAcc = 712 days |
Relativistic Deceleration
Time |
Ship bound observer
measures duration
of 547.6 days.(1.5 years).
| tDec = tAcc |
TOTAL TIME FOR TRIP |
Total
Normal Time |
tTtl = tAcc + tCru + tDec
| tTtl = 1.95 yr + 2.5 yr +1.95 yr
tTtl = 6.4 yr
|
Total
Relativistic Time |
tr-Ttl = tr-Acc+tr-Cru+tr-Dec
| tT-r = 1.5 yr + 1.25 yr +1.5 yr
tT-r = 4.25 yr
|
NOTE: LY = 63,241 AU; c = 173.145AU/day
SUMMARY
Total tr = tr-Acc + tr-Cru + tr-Dec
EXAMPLE: G-force journey to the Alpha Centauri system.
tr-Ttl = 547.6 days + 454.75 days + 547.6 days = 1,550 days
tr-Ttl = 1.5 yr + 1.25 yr + 1.5 yr = 4.25 yr
|
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