All Images Copyright Rod Gallagher
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M52 -- Open Cluster
NGC7635 -- Bubble Nebula
Object
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Type
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Open Cluster
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Constellation
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Cassiopedia
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Distance
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4.6k light years
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Magnitude
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7.3
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Size
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13.0 arc-min
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Image
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Date
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2021-07-07
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Place
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Cheddar Ranch Observatory
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Exposure Data
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HaLRGB 30:85:90:70:60 mins @ -15C
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HAlpha 6x5, Lum 17x5, Red 18x5, Green 14x5, Blue 12x5 min
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Notes
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HAlpha and Lum frames binned 1x1, RGB frames binned 2x2
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NGC 5195 is the interacting galaxy to the left of M51
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Equipment
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Optics
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Takahashi TOA-150
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Focal Length
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1100 mm @f/7.3
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Mount
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Paramount ME
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Camera
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SBIG STL-6303E
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Focuser
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RoboFocus
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Filters
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Internal CFW, Astrodon LRGB (Gen 2), Astrodon HAlpha (3 nm)
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Software
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TheSkyX, CCDSoft, CCDAutopilot5, CCDStack 2+, PhotoShop CS6, eXcalibrator
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