Little Dumbbell Nebula (M76) in Halpha and OIII



Technically this isn't first light with my new SBIG STF-8300M, but it's my first project with it. This object is really too small for an f7 refractor, but I had several consecutive nights with exceptional seeing which allowed me to pull down more detail than usual. In general, a good FWHM for this setup is 2 pixels, or 2.12 arcseconds, but I routinely got 1.6 pixels and even lower on these wonderful Fall nights.

Object(s): M76 Coordinates: RA=1hr43.2min, DEC=51°38.6min Constellation: Perseus
Telescope: Esprit 150 Camera: SBIG STF-8300M Exposures: 31x1000s H alpha, 26x1000s OIII
Location: my back yard Date(s): October 8 to October 12, 2013 FOV: 45.5x34.1 min
Notable images: Schedler Crawford


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