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Derek Santiago | all galleries >> Galleries >> Planetary Nebulae and SN Remnants > M57 Halo
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M57 Halo

Well known planetary nebula in Lyra. The core is bright at magnitude 8.6 but the layered halo, particularly the outermost layer is exceptionally faint.

Imaging Camera: QSI640wsg
Imaging Scope: Celestron 9.25"Edge HD at f/7
Guide Camera: SX Lodestarx2
Mount: Avalon M-Uno Fast Reverse
Filters: Astrodon Gen II LRGB
Exposure: 10 hours 5nm Ha, 1 minute subs for the core, and 30 minute binx2 subs for the halo. 3 hours luminance (binx1) and 1 hour each RGB (binx2) 1 minute subs.
Processing: CCD Stack and PS CC
Date: 7/5/20-7/13/20
Sky conditions: Below average seeing, bortle white skies, SQM 17.8 mag/arc-sec2
Location: My front driveway. Morristown, NJ

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