Jellyfish Nebula (IC443) – Narrowband Hydrogen-alpha

While testing a new coupler/adapter for the STL6303E CCD camera, I imaged the Jellyfish supernova remnant using a 5nm narrowband Hydrogen-alpha filter. The bright star near the “head” is 7 – Eta Geminorum.

5nm Narrowband H-alpha filter, 10 images x 600-second sub frames, binned 1x1, Total= 1 hour and 40 minutes. TMB 92 APO refractor, f/5.5 using a field flattener. SBIG STL-6303E CCD camera, Losmandy Gemini G-11 EQ mount. Image acquisition by CCD Soft V5. Processing by CCD Stack and Adobe Photoshop. ATMoB Clubhouse, Westford, MA, 23 March 2014.