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Devac · 1887 days ago · link · · parent · post: Why the world is waiting for Betelgeuse to go supernova ·
I need to correct myself and point out that the values I got were wrong.
Formulae:
t = sqrt(x²/c² + 2x/g) - time measured on Earth
t' = (c / g) * asinh(gt/c) - time measured by ship's crew
Numerical values:
c = 3.00E8 m/sg = 9.81 m/s²
x = 4.3 ly = 4.07E16 m
Time from the perspective of people on Earth (t): 1.63E8 seconds = 5.18 years.
Time from the perspective of people on the ship (t'): 7.27E7 seconds = 2.31 years.
Derivation was OK, had four other people check it for me and can show the work. It's not a new result anyway. Regardless, sorry for the mistake.
am_Unition, ButterflyEffect, nil - you also shared that post, so I'm shouting out just in case it has any relevance for you guys.