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Observing >> Deep Sky Observing

tatarjj
scholastic sledgehammer


Reged: 04/20/04
Posts: 905
Loc: Auburn, AL
Re: The vast "empty quarter" east of Sagittarius
      07/30/08 09:17 AM

Quote:

Even taking into account galaxies, the items we observe visually aren't very far away in the scheme of things. Most galaxies you can visually observe are less than 500 million LYs. Clusters like Virgo are less than 100 million LYs. That's not very far away at all, which means that what we are visually observing can hardly be considered representative.




Yes, even the "extremely" distant galaxy clusters that lie 1-3 billion light years away and are visible in 18+ scopes are, cosmologically speaking, in our backyard.

--------------------
John T.
Auburn, AL
25" f/4.2 Dob
18" Obsession #701
4" Stellar Vue Achromat
8X56 Binos

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Subject Posted by Posted on
* The vast "empty quarter" east of Sagittarius FirstSight 07/28/08 10:57 AM
. * Re: The vast "empty quarter" east of Sagittarius bicparker   07/28/08 11:58 AM
. * Re: The vast "empty quarter" east of Sagittarius astrokido   07/28/08 01:31 PM
. * Re: The vast "empty quarter" east of Sagittarius tatarjj   07/28/08 01:58 PM
. * Re: The vast "empty quarter" east of Sagittarius FirstSight   07/28/08 05:34 PM
. * Re: The vast "empty quarter" east of Sagittarius Tony Flanders   07/29/08 08:35 AM
. * Re: The vast "empty quarter" east of Sagittarius FirstSight   07/29/08 08:56 AM
. * Re: The vast "empty quarter" east of Sagittarius DeepSpaceTour   08/03/08 06:05 PM
. * Re: The vast "empty quarter" east of Sagittarius HfxObserver   07/29/08 10:01 PM
. * Re: The vast "empty quarter" east of Sagittarius Starman1   07/29/08 10:32 PM
. * Re: The vast "empty quarter" east of Sagittarius Bill Weir   07/30/08 03:07 AM
. * Re: The vast "empty quarter" east of Sagittarius bicparker   07/30/08 05:47 AM
. * Re: The vast "empty quarter" east of Sagittarius tatarjj   07/30/08 09:17 AM
. * Re: The vast "empty quarter" east of Sagittarius Tony Flanders   07/30/08 09:35 AM
. * Re: The vast "empty quarter" east of Sagittarius tatarjj   07/30/08 01:02 PM
. * Re: The vast "empty quarter" east of Sagittarius tatarjj   07/30/08 01:14 PM
. * Re: The vast "empty quarter" east of Sagittarius moron392   07/28/08 03:38 PM
. * Re: The vast "empty quarter" east of Sagittarius Tony Flanders   07/28/08 11:28 AM

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