Timeline for Humans Reaching Andromeda?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Jun 2, 2021 at 15:27 | history | edited | Gert | CC BY-SA 4.0 |
added 12 characters in body
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| Jun 2, 2021 at 2:57 | comment | added | PM 2Ring | Actually, those fuel calculations already incorporate the Tsilovsky equation. Sorry. | |
| Jun 2, 2021 at 2:29 | comment | added | PM 2Ring | Oops! That figure of 4100 T per kg is for a journey where the acceleration is +1 g so you arrive at just under c. If you do the midpoint flip, the fuel requirement is 4.2 billion T per kg. | |
| Jun 2, 2021 at 2:22 | comment | added | PM 2Ring | According to the classic relativistic rocket article, the 2 million LY journey to Andromeda takes 28 years, and an ideal engine consumes 4100 tonnes of fuel per kg of payload. That is, the engine is 100% efficient, and works by annihilation of matter with antimatter. And of course, if the rocket has to carry all that fuel, the total mass will be enormous, due to the Tsilovsky rocket equation. | |
| Jun 2, 2021 at 1:29 | history | answered | Claudio Saspinski | CC BY-SA 4.0 |