photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Peter Zetner | all galleries >> Astrophotography >> Solar Photos (2014+) >> Spectroheliograph > 103546-0000_12frames-AVG_proc_final_crop.jpg
previous | next
13-JUL-2014

103546-0000_12frames-AVG_proc_final_crop.jpg

0.00s hide exif
Full EXIF Info
Date/Time13-Jul-2014 13:18:11
Make
Model
Flash UsedNo
Focal Length
Exposure Time
Aperture
ISO Equivalent
Exposure Bias
White Balance
Metering Mode
JPEG Quality
Exposure Program
Focus Distance

other sizes: small medium large original auto
share
Peter Zetner23-Aug-2014 18:29
One of the reasons I found this fascinating is the presence of the flare in AR112082 (lower AR). The corresponding flare spectral feature is a bright "smear" extending throughout and beyond the Ca H absorption line. I assume this is an indication of tremendous heating associated with the flare and the correspondingly wide, thermally broadened, emission line.

The spectral feature associated with the upper AR (112080) has a, more or less, typical hourglass shape where the H2 bright regions merge together at the umbra. You can see this in the lower AR as well. Typically, I've found the umbra itself to be dark (in the H3 line core) but the AR112080 spectral feature has a bright patch which looks like it's associated with a light bridge.
Type your message and click Add Comment
It is best to login or register first but you may post as a guest.
Enter an optional name and contact email address. Name
Name Email
help private comment