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Astrophotography of Star Clusters




NGC5139, Omega Centauri

NGC5139, Omega Centauri


Date: May 23, 2006

Telescope: Celestron 11 XLT, f/5, CG5 mount

Camera: Starlight Xpress SXV-H9C

Exposure: 40 10-sec subframes (6.67 min total) unguided

Comments: Meade .33 focal reducer spaced to give f/5. Note some coma around edges. Telescope tube was almost horizontal when taking this image. Object was about 11 degrees above horizon.




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