The Seagull in SHO and HOO palettes

The Seagull in Monoceros is roughly 3650 Light Years away and rich in Hydrogen and Oxygen emissions. It provides the background for the open cluster NGC 2335.   SHO, Hubble, palette image 10 hours of #NBOSC exposures on 2025-12-19>21 under Bortle 7 skies from Austin, Texas, rendered in a Hubble SHO palate.

HOO palette rendering from 2.25 hours of #NBOSC exposures on 2025-12-19 under Bortle 7 skies from Austin, Texas.

WO RedCat 250/51mm, L-Ultimate and L-Synergy dual NB filter, ASI533 MC camera, ASIAIR Plus controller, AM5N mount. 47 HO (L-Ultimate 3nm HaO3 dual band filter) and 68 SO (L-Synergy 7nm S2O3 filter) 5' exposures stacked and processed in PixInsight with a light VeraLux HyperMetric stretch, RC-Astro and SetiAstro tools. Final exp and crop in Affinity Photo

Content created: 2025-12-21

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