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Ground-Based Telescopes, How good are they now?
Guest_DonPMitchell_*
post Jun 5 2006, 11:23 AM
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How do the latest Earth-based telescopes compare to the Hubble? I noticed these pictures of Uranus taken by the Keck telescope:

[attachment=6075:attachment]

Compared to this photo taken by the Hubble Space Telescope:

[attachment=6076:attachment]

Folks are doing some impressive stuff with multiple mirrors and algorithms for removing atmospheric effects. Looks like these are the big guns currently:

Palomar - 5 meter single mirror
BTA - 6 meter, single mirror
VLT - 8.2 meter multi-mirror
Keck - 10 meter multi-mirror

There are some intersting plans for huge new Earth-based telescopes like the Califormina 30-meter telescope, the Euro-50 and the 100-meter OWL (Overwhelming Large Telescope!).
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jamescanvin
post Jun 5 2006, 11:28 PM
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Personally I think it is the right decision. Consider that 100m is the size of the largest radio telescopes, the challenges of building an optical 100m are immense. I think it's wise to get some 30m's up and running before thinking about 100m.


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Posts in this topic
- DonPMitchell   Ground-Based Telescopes   Jun 5 2006, 11:23 AM
- - ugordan   The downside of adaptive optics is they work very ...   Jun 5 2006, 11:43 AM
- - PhilCo126   http://www.eso.org/projects/vlti/ in a superb loca...   Jun 5 2006, 04:19 PM
|- - DonPMitchell   QUOTE (PhilCo126 @ Jun 5 2006, 09:19 AM) ...   Jun 5 2006, 08:47 PM
- - jamescanvin   QUOTE (DonPMitchell @ Jun 5 2006, 09:23 P...   Jun 5 2006, 10:11 PM
- - Jyril   What a pity... There's things where you actual...   Jun 5 2006, 11:10 PM
- - jamescanvin   Personally I think it is the right decision. Consi...   Jun 5 2006, 11:28 PM
- - PhilCo126   Well, with the upcoming IYA 2009 ( International Y...   Jun 5 2008, 06:19 PM
- - PhilCo126   Extremely Little Telescope: http://www.astronomy...   Jul 3 2008, 04:58 PM
|- - Del Palmer   QUOTE http://www.astronomynow.com/080609Extremel.....   Jul 5 2008, 06:52 PM
- - nprev   Heh, heh, heh...cute! Kind of interesting ...   Jul 3 2008, 06:06 PM

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