M35 - Open Cluster in Gemini


M 35 (NGC 2168) is an open star cluster located in the constellation of Gemini, the Twins. It was discovered by Philippe Loys de Chéseaux around 1745 and re-discovered by John Bevis around 1750. It lies 2,700 light years away and spans 11 light years. It is relatively close to Earth and covers nearly the size of a full moon. It is visible to the naked eye under good conditions.

The smaller open cluster in the upper left of the frame is NGC 2158.

Telescope: Takahashi FS-102 @ f/8  
Camera: ST-2000XM w/CFW-8  
Mount: EM-200 Temma  
Exposures: L: 6x3min. R: 2x1min. G: 2x1min. B: 2x1min. (all unbinned)  
Processing: Images were captured, reduced, and had histograms adjusted using CCDSoft v.5. Color images were aligned and combined with RegiStar. The luminance layer was added in Photoshop 7. The composite was then adjusted (Curves, Saturation, slight cropping).  
Location: My backyard in SE Minnesota.  
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