Terry Hancock’s gallery
For many years, Terry Hancock imaged from his backyard, but upon retirement, he managed the Grand Mesa Observatory in Colorado, where he currently serves as
DISCOVER NEW HORIZONS
M57, The Ring Nebula
Astrobin IOTD 2025 Jul 31
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Imaging Camera miniCAM8M
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Total Integration 6h 55'
Telescope: Askar 185 APO
Mount: Astro-physics Mach2 GTO
Integration: 6h 55′
per filter:
– Hα: 1h 55m (23 × 300″)
– SII: 1h 35m (19 × 300″)
– OIII: 1h 45m (21 × 300″)
– ArIII: 1h 40m (20 × 300″)
Color mapping:
M57 — [OIII] = Blue, [ArIII] = Green, [SII] = Yellow, Hα = Red
Sky + Galaxies — HOO
Stars — AOO
Astrophotographer
Nico Carver
