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Jun 18, 2017 at 20:51 history edited WilliamKF CC BY-SA 3.0
Fix link that went bad.
S Aug 16, 2014 at 1:01 history bounty ended TildalWave
S Aug 16, 2014 at 1:01 history notice removed TildalWave
Aug 14, 2014 at 23:17 vote accept WilliamKF
S Aug 13, 2014 at 21:56 history bounty started TildalWave
S Aug 13, 2014 at 21:56 history notice added TildalWave Reward existing answer
Jul 13, 2014 at 5:43 history tweeted twitter.com/#!/StackAstronomy/status/488196882205011968
Jul 9, 2014 at 23:16 history edited Florin Andrei
edited tags
Jul 9, 2014 at 21:16 history edited WilliamKF CC BY-SA 3.0
Use donut instead of dot in wording for clarity.
Jul 9, 2014 at 21:14 vote accept WilliamKF
Aug 14, 2014 at 23:17
Jul 9, 2014 at 20:08 comment added Florin Andrei @Carl - people have tried that, and it doesn't work very well for telescope mirrors. The best (and most widely used) method is the one linked above, on garyseronik.com
Jul 9, 2014 at 19:52 answer added Florin Andrei timeline score: 8
Jul 9, 2014 at 11:29 comment added Carl If you have an accurate right angle, then something like this should be pretty easy to do ... instructables.com/id/How-to-find-the-center-of-a-circle
Jul 8, 2014 at 3:44 history edited WilliamKF CC BY-SA 3.0
edited title
Jul 8, 2014 at 2:05 review First posts
Jul 8, 2014 at 2:59
Jul 8, 2014 at 1:46 history asked WilliamKF CC BY-SA 3.0