H-alpha network in Lyra
And this is the tough target for the night. This photo is roughly centered on RA: 18h34m DE:+31 deg 25' in Lyra. An H-alpha survey suggested some very faint H-alpha structure, and I wanted to see if it would show up using my equipment/technique. While the image did have to be stretched 'to hell and back' to bring out the nebula, I am happy to say that I bagged it.
Of course at 4x4 binning, the resolution of the final image reminds me of an image from the 1980s, and shooting only 2 light frames didn't help much. One would need one hell of an astrograph (7-8" ~f/2.8) to get a brighter image of this field.
Date: May 12, 2013
Time: 0:01 pm - 1:00 am
Camera: SBIG STF-8300M
CCD Temperature: -10 C
Optics: Takahashi Sky 90 II @ 406 mm fl (f/4.5)
Filter: Astrodon 5nm H-alpha
Light frames: 2x30 min
Dark frames: none
Flat frames: ~10
Guiding: Orion SSAG @ Orion finder (~162 mm)
Mount: Losmandy GM-8
Processing: Stacking in DeepSkyStacker, Curves and Levels PSCS6.