NamesAndromeda Galaxy, Messier 31, NGC 224
TypeBarred spiral galaxy in the Local Group
ConstellationAndromeda
Distance≈ 2.7 million ly
Magnitude3.4
Size200′ × 71′
RA00h 42m 44.3s
Dec+41° 16′ 08″

The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31, M31, and NGC 224.1

Andromeda Galaxy - IMX533COpen in the gallery: Andromeda Galaxy - IMX533C
Andromeda Galaxy - IMX533C

Photo Details

TelescopeSVBONY Sv545 (202.5 mm f/4.5)
CameraToupTek ATR533C (IMX533 colour) - Gain 100 -10 °C
MountSky-Watcher Star Adventurer GTi
ControlPolaris (N.I.N.A. fork for the Raspberry Pi with a browser UI)
Dates2026-10-06, 2026-10-16, 2026-10-17, 2026-10-18
Integration time13h 9m
FiltersBroadband - 464 × 60s -: 7h 44m, Broadband - 20 × 10s -: 3h 20m, Narrowband (Sv220) - 25 × 300s -: 2h 5m
ProcessingBroadband RGB with Hα from the SV220 (dual-band) added to the red channel to bring out the star-forming regions; short 10 s subs blended in for the core
NotesThird attempt - this time using a full rig and merging both broadband and narrowband.

Footnotes

  1. Wikipedia - Andromeda Galaxy ↩