AR 9096, 2002/4/17

Started by Dave Mitsky, 04/18/2002 12:44PM
Posted 04/18/2002 12:44PM Opening Post
Active Region 9906 (http://www.spaceweather.com/images2002/17apr02/midi512_blank.gif) is easily visible to the optically unaided but properly filtered eye. I had a peak at it on Tuesday and Wednesday using polymer solar shades and a Mylar filter. AR 9906 is the first "naked-eye" sunspot that I have seen for a couple of months.

With my 114mm f/7.9 Celestron C4.5 Newtonian this large sunspot group revealed some interesting umbral and penumbral detail Newtonian yesterday afternoon at 53 (17mm Tele Vue Ploessl) and 82x (11mm Tele Vue Ploessl).

AR 9096 has been the center of some energetic events recently. A large CME erupted on the 17th (http://science.nasa.gov/spaceweather/images2002/17apr02/cme_c3_big.gif) and may cause auroral activity on the 19th or 20th.

Dave Mitsky



Chance favors the prepared mind.

De gustibus non est disputandum.