First Light with iOptron Photron RC8: Sh2-275 The Rosette Nebula in HαRGB (Chad Leader)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: NGC 2237 · NGC 2239 · Rosette A · The star 12Mon

First Light with iOptron Photron RC8: Sh2-275 The Rosette Nebula in HαRGB, Chad Leader

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First Light with iOptron Photron RC8: Sh2-275 The Rosette Nebula in HαRGB

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First Light with iOptron Photron RC8: Sh2-275 The Rosette Nebula in HαRGB

First light with an iOptron Photron 8 inch Ritchey-Chrétien Telescope RC8. This is an HαRGB combination (Hα used as luminance). I wanted to test the RGB star colors with this telescope - I'm pretty happy with the result. Focal length is right at 1620. The field is pretty well corrected for the sensor - only some slight elongation in the corners. Perhaps refining the collimation will flatten it even more.

Collimation was definitely more challenging than an SCT - in fact, it still needs a little refinement. But, there are certainly some advantages to the RC design.

Acquisition details:

Washington, DC area bortle 8/9
Hα = 36 x 300s = 3 hrs
R = 30 x 120s = 1hr
G = 25 x 120s = 50 mins
B = 30 x 120s = 1 hr
Total integration = 5hrs 50mins

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First Light with iOptron Photron RC8: Sh2-275 The Rosette Nebula in HαRGB

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First Light with iOptron Photron RC8: Sh2-275 The Rosette Nebula in HαRGB

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