Monday's Sun in H-Alpha

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  • From: PA, USA, Earth Moderator
Monday's Sun in H-Alpha
Posted by DaveMitsky on Monday, October 14, 2013 4:47 PM

My wife and I observed the Sun this afternoon with my 40mm f/10 Coronado PST and an 8-24mm Vixen zoom eyepiece.  Two large sunspots (AR 11864 and 11865) and a number of smaller ones were visible, as well as several filaments, a plage region, and numerous prominences, mostly on the trailing limb.

An M1-class solar flare and a minor Earth-directed CME erupted from AR 11865 yesterday.

An image of today's photosphere can be seen at http://spaceweather.com/images2013/14oct13/hmi4096_blank.jpg?PHPSESSID=2lgdej2p4tdpl5c1227b9r9lt2

Dave Mitsky

Sic itur ad astra!

Chance favors the prepared mind.

A man is a small thing, and the night is very large and full of wonders.

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