The Fish Head Nebula | Astrobiscuit | Page 1

coral juniper Dec 18, 2025, 5:05 PM

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37h 28m of SHO+RGB exposure from bortle 9
6" f/4 newtonian, ASI1600, Orion Sirius

spiral furnace Dec 19, 2025, 4:51 AM

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Have you done something to your telescope to reduce the difraction spikes? It's odd that only a handful of stars have them monkaHmm

old rose Dec 19, 2025, 5:40 AM

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Wonderful job Nice

coral juniper Jan 6, 2026, 4:00 PM

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No?

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Only bright stars will have them anyway

spiral furnace Jan 6, 2026, 4:06 PM

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Well... it happens that I imaged the same region and I got diffraction spikes on almost all the stars😅

coral juniper Jan 6, 2026, 4:06 PM

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What scope

spiral furnace Jan 6, 2026, 4:18 PM

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Skywatcher 130pds

coral juniper Jan 6, 2026, 4:22 PM

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¯_(ツ)_/¯

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Could also likely be my narrowband filters causing it

spiral furnace Jan 6, 2026, 4:23 PM

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What filters are you using?

coral juniper Jan 6, 2026, 4:24 PM

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Astrodon 5/3/5nm for Ha Oiii and Sii respectively

spiral furnace Jan 6, 2026, 4:28 PM

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Ohooo, those are some expensive filters

coral juniper Jan 6, 2026, 4:29 PM

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At least I bought em in like 2019

#The Fish Head Nebula