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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: sci.physics.relativity
Subject: Re: The Tau Ceti traveler
Date: Wed, 11 Sep 2024 09:57:25 +0300
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On 2024-09-10 15:55:39 +0000, Richard Hachel said:

> The Tau Ceti traveler
> 
> The Tau Ceti traveler is a relativistic problem imagined by Dr. Richard 
> Hachel and which consists of the study of the journey to Tau Ceti of an 
> astronaut evolving in accelerated mode of approximately 10m/s², in 
> order to maintain his ship in a sort of artificial gravitation.
> The distance of Tau Ceti is set at twelve light years.
> The departure is from the Cape Canaveral base in Florida.
> We set:
> a=1.052ly/y²
> D=12al

Do both "ly" and "al" mean 'light year? If they do, you should use the
same symbol for both.

You should also say what D means.

> We want to know when and at what speed the spaceship will cross the Tau 
> Ceti system in the Earth's frame of reference.

Do you mean that the astronaut is flying past tau Ceti without stopping
there?

-- 
Mikko