M101 The Pinwheel Galaxy spiral galaxy in Ursa Major

LOCATION: Bryce Canyon

 

CONDITIONS: 97% full moon, seeing 8/10, transparency 8/10, temperature 65-46 F.

 

TELESCOPE: Televue 85mm refractor, 600mm focal length, prime focus no diagonal.

 

MOUNT: Losmandy G11, Gemini goto, polar scope used to align,.

 

CAMERA: Canon Rebel 300d

 

FOCUSING: Manual on star using right angle Canon 2.5 magnifying view finder.

 

EXPOSURES: (2) 3 min raw, 800 ISO

 

PROCESSING: IP- convert raw to FITS, dark frame calibrate, align-rotate-scale, combine average,. digital development, convert to 16 bit TIFF, PS CS- curves, levels, color saturation, cropped, unsharp mask, convert to 8 bit JPEG.

 

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