Active Region 2738
Taken by Deirdre Kelleghan on April 10, 2019 @
Louisburgh Co Mayo Ireland
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Camera Used: HUAWEI FIG-LX1
Exposure Time: 30000000/1000000000
Aperture: f/2.2
ISO: 80
Date Taken: 2019:04:10 17:34:21
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Details:
Active Region 2738 April 10th 2019 White Light - 11:17 UT - 11:35 UT and in h- alpha 12:30 UT - 13:10 UT
PST 40 Eyepiece 14mm - 50X Pastels and Conte on black card. 12:30 UT - 13:10 UT
At 12:36 UT a very bright plage flare erupted from the base of two dark filaments. Then one of the filaments got very long very quickly. Then the flare subsided. It's the yellow part of the drawing. The umbra was very dark and the surrounding penumbra seemed light red in h-alpha. Other normal plage is shown in light pink. It is very difficult to draw all the detail that comes to the eye as it is in layers. Each drawing is an experiment in trying to get it right. A corkscrew-like prom was busy off the limb. The grey dots you see there are because the fixative spray reacted in the hot sun ( very unApril)
AR 2738 April 10th 2019 - Pencil on white paper.
11:17 UT - 11:35 UT Was hoping to do several of these pencil drawings and a h-alpha pencil drawing however It got a bit hazy as the morning developed.
Deirdre Kelleghan
Photographer's website:
http://www.deirdrekelleghan.net/
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