Astronomy, Photography and Weather

General Category => Astronomy & Space => Topic started by: brianb on March 27, 2011, 11:53:38 pm



Title: An Outbreak of Solar Measles!
Post by: brianb on March 27, 2011, 11:53:38 pm
Saturday March 26th: The Sun has many spots visible in white light; there are five active areas in the eastern sector (plus a very small sixth near the west limb).

(http://i885.photobucket.com/albums/ac55/bjb11213/2011/March/26/Sun-110326-1055-WL-discNE-FLTX1.jpg)
2011 Mar 26, 1055 UT. WO FLT 110, Lunt solar wedge, ND 3.0 & Wratten 29 (deep red) filters, prime focus, DMK41; 80% resize.

Here's a closeup of the main active area (AR 11176):

(http://i885.photobucket.com/albums/ac55/bjb11213/2011/March/26/Sun-110326-1038-WL-AR11176-FLTX3.jpg)
2011 Mar 26, 1038 UT. WO FLT 110, Lunt solar wedge, ND 3.0 & Wratten 29 (deep red) filters, 3x tele-extender, DMK21.

And here's the main activity (south of the solar equator) in hydrogen alpha:

(http://i885.photobucket.com/albums/ac55/bjb11213/2011/March/26/Sun-110326-1119-Ha-AR11176-FLTX2-mosaic02-small.jpg)
2011 Mar 26, 1119 UT. WO FLT 110, Solarscope SF-100 Ha filter set, 2x Powermate, DMK41: 2 frame mosaic, 55.5% resize; full size version here (http://i885.photobucket.com/albums/ac55/bjb11213/2011/March/26/Sun-110326-1119-Ha-AR11176-FLTX2-mosaic02.jpg).


Title: Re: An Outbreak of Solar Measles!
Post by: markt on March 28, 2011, 12:00:07 am
Nice images again Brian!  8)