NGC 891 — Silver Sliver Galaxy · NGC 891

NGC 891, the Silver Sliver — a spiral galaxy seen almost perfectly edge-on, ~30 million light-years away in Andromeda, with a sharp dust lane down its midline. Colour camera on the 200 mm Newtonian.

The edge-on spiral galaxy NGC 891 in Andromeda, a thin needle of starlight crossed by a dark central dust lane

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TargetNGC 891

TypeGalaxy

RA02h 22m 33s

Dec+42° 20′ 57″

Captured2025-09-22

Integration180 s subs

Frames180 s subs

FiltersNone — OSC broadband

Gain150

Processing notes

ToupTek 183CA on the Explorer 200P Newtonian + coma corrector, EQ5 Pro, PHD2 guiding. Stacked in Siril, then cropped, green-removed and stretched in post.