Date/Location |
March 20, 2021 Jubilee College State Park, Illinois |
Camera and Settings |
SBIG STF-8300C CCD camera -20°C |
Telescope |
Askar 72mm f.5.6 Qunituplet Apo with a 0.7x focal reducer to yield f/3.9 |
Mount |
Celestron CGEM II |
Exposure |
120 min (12 x10 min) |
Processing |
CCDOpts, Image Plus 6.5, Photoshop CS6 |
Other |
Open star cluster 2 deg in diameter with integrated magnitude 1.79; Constellation Coma Berenices. |
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