lunar 23, 46 degree halo Mark Riddick Image taken: Dec. 1, 2009 Location: Staunton, Virginia, USA Details: Blue Moon indeed! After a late-night alert from a friend (thanks Danielle!) I enjoyed and photographed this 23 degree lunar halo. And I'm sure Tony or Les will correct me if I'm wrong, but I believe the third image also has a 46 degree halo. ©2013, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.