Re: BSG+ Centauri A, B, C and Cally (was Re: Anyone else notice...)

In article <Xns9A87CC811197Bmdhalbrookyahoocom@[EMAIL PROTECTED]
>,
M. Halbrook <mdhalbrook@[EMAIL PROTECTED]
> wrote:
>btm@[EMAIL PROTECTED]
 (Brad Templeton) wrote in news:yqOdne0hP-
>BYXpHVnZ2dnUVZ_oDinZ2d@[EMAIL PROTECTED]
>
>> Again, the point is that Alpha Centauri is a very sucky
>> signpost to Earth.      On a Galactic scale, Alpha Centauri
>> is in Earth's backyard.  If you can see Alpha Centauri, you can
>> see the Zodiac, you can see M8, and the sun is just as bright.
>
>What you've YET to address in this argument is the fact that, seen from 
>Alpha Centauri, Would the Zodiac look the same?  Wouldn't the perspective

>change from any angle but an earth out view?

Yes, it would change, but only mildly.   However, that doesn't matter,
computers can trivially remap to show you what the sky would look like
from alpha centauri or any other point.   The only error is, if you get
far enough away from Earth, you reach a point where stars too dim to
see from here become bright enough to be bright stars.

(Or in the reverse, there are stars in our Zodiac that, once you get a
few hundred light years from here, would get much dimmer, and eventually
you would not see them, though with space telescopes you would have to
be pretty far.)

However, that just means when you ask, "Would you see the zodiac from
this test star?" the computer presents a partial match.  You see some of
the stars, but some of the zodiacal stars are not in your database as
they are too far from you. 

You're still going to match it, a long way out.
-- 
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