RE: Re: [FH] FTL, astronomy

Spectra are unique, they are formed by different amounts of various
elements that produce more of one color when burned.  A problem arises
when dust, hydrogen or nebula are in the way as they might absorb parts
of the spectra, reducing the usable parts and making ID more difficult.

You would determine range to a star the same way astronomers currently
do. How do you think they know Alpha Centauri is 4.3 light years away?	

--Binhan

> -----Original Message-----
> From: laserlight@quixnet.net [mailto:laserlight@quixnet.net]
> Sent: Friday, February 22, 2002 8:59 AM
> To: gzg-l@csua.berkeley.edu
> Subject: RE: Re: [FH] FTL, astronomy
> 
> 
> Quoth Indy:
> >The next problem would be trying to determine what stars 
> around you are
> "nearby", and how you would go about doing that.
> 
> I wouldn't bother with that, just use the same identifiable 
> stars...if they're identifiable.  They's the key question.  
> Are spectra unique, like voiceprints? Or is Sirius going to 
> look pretty much like any other star of its general type (A2, IIC)?
> 
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