All Images Copyright Rod Gallagher
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NGC 6517 -- Globular Cluster
Object
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Type
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Globular Cluster
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Constellation
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Ophiuchus
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Distance
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35.2k light years
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Magnitude
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10.3
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Size
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4.8 arc-min
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Image
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Date
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2008-07-19
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Place
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Bixhoma Observatory (H33)
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Exposure Data
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Lum 10 mins @ -5C
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Lum 10x1 min
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Notes
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All filters binned 1x1
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Equipment
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Optics
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Meade 12" RCX-400
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Focal Length
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1500 mm @f/5 (f/8 with 6.3 focal reducer)
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Mount
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RCX-400 on Milburn wedge
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Camera
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SBIG ST-7XME w/AO7
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Focuser
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JMI Focuser with RoboFocus
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Filters
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CFW-8, Astrodon LRGB
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Software
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TheSky6, FocusMax, CCDAutopilot4, PixInsight, PhotoShop CS6
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Reprocessed on 12/19/2022
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