tag:blogger.com,1999:blog-32546160.post1777071571058561889..comments2024-03-01T21:25:50.289+11:00Comments on astropixie: twinkle twinkle little starsAnonymoushttp://www.blogger.com/profile/14621483772952311458noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-32546160.post-40720026818528077232009-08-30T02:33:25.685+10:002009-08-30T02:33:25.685+10:00I once thought the VLT couldn't compare with t...I once thought the VLT couldn't compare with the HST, but now I don’t think so.Wilsonnoreply@blogger.comtag:blogger.com,1999:blog-32546160.post-74952492676543091842009-08-29T14:03:03.131+10:002009-08-29T14:03:03.131+10:00that is really interesting! it is amazing the dif...that is really interesting! it is amazing the difference it makes!Nikkyhttps://www.blogger.com/profile/02081609678630044262noreply@blogger.comtag:blogger.com,1999:blog-32546160.post-62842909922873456292009-08-28T23:59:47.343+10:002009-08-28T23:59:47.343+10:00haha - thats funny, creed! i wish!
rick - thats...haha - thats funny, creed! i wish! <br /><br />rick - thats a good point. no, they dont change the shape of the big primary mirror... they add in a smaller mirror to the system that can be be adjusted rapidly with actuators. here's an example of one: <br /><a href="http://www.ctio.noao.edu/~atokovin/tutorial/part2/keck_dm.jpg" rel="nofollow">http://www.ctio.noao.edu/~atokovin/tutorial/Anonymoushttps://www.blogger.com/profile/14621483772952311458noreply@blogger.comtag:blogger.com,1999:blog-32546160.post-52630111108694649752009-08-28T23:23:44.704+10:002009-08-28T23:23:44.704+10:00Very interesting; thanks for the explanation! If i...Very interesting; thanks for the explanation! If it doesn't get too technical, can you explain how they change the shape of the mirror? I thought the mirrors were large pieces of highly polished material set into a parabolic bowl, and I have a hard time imagining them changing shape. Please forgive if this appears to be a stupid question---I'm a total layman!Rik Gernhttp://www.bonzocrunch.comnoreply@blogger.comtag:blogger.com,1999:blog-32546160.post-30632694172289287322009-08-28T23:13:02.689+10:002009-08-28T23:13:02.689+10:00Wow, that is a serious difference!
Could you use ...Wow, that is a serious difference!<br /><br />Could you use the same technology to keep party pictures in focus when I'm too shattered to hold the iPhone steady? ;)Andy Whttps://www.blogger.com/profile/11076455748492411216noreply@blogger.com