Sun in HAlpha
With Lunt LS100THa
For Thursday, December 8th
Images below are 1290 wide and non clickable
Sun is becoming more blank each month, and as we approach a still
distant solar minimum - which may be one of the deepest in recorded
history - we can still see an occasional sunspot and prom. Today
we had a nice small group on the limb, and a large reptile shaped
prom hovering on the same limb as well. |
Instruments: Lunt LS100THa Halpha
Platform: Astrophysics 1200
Camera: DMK 51
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing 1.5/5, Transparency 9/10
Outside Temperature: 35F
Processing: Registax 6, Photoshop CS2
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start with the full disk, with the .5x Antares focal reducer.
The nearly blank disk has one active group, and a filament seen
dimly above it.
view however improves is we increase the gamma to 150 and brighten
up the scene a bit. The large iguana prom is on the right side.
with 3x Klee barlow shows nice detail on the active region, despite
the poor seeing of 1.5/5.
the Red Wing of Halpha, we can also see a few Ellerman bombs
around the spot as tiny white points. These are micro flares.
view of the big prom!