Deep Sky Monitor From Curiosity to Cosmos.

Andromeda And

Andromeda is one of the 88 constellations, covering 724 square degrees of the sky (19th largest). It is highest at midnight in September and best in the evening sky in October and November.

9 of its best-known objects have a page of their own here.

Facts

AbbreviationAnd
Size724 square degrees (19th largest of the 88; the full Moon covers about 0.2)
Middle (J2000)0h 40m, +40°
Highest at midnightSeptember (in the evening, around 8–10 pm: October and November)
How highFrom India (about 20° N) its middle climbs to about 70° above the horizon; from 50° N, to about 80°.
Pages here9 objects

Galaxies

4

Nebulae

1

Planetary systems

1

Stars

3

Brightest NGC and IC objects

OpenNGC
ObjectTypeMagnitudeSize
M31 · NGC 224 (Andromeda Galaxy)Galaxy 3.4177.8′
NGC 7686 (on the map)Open star cluster 5.63.6′
NGC 752 (on the map)Open star cluster 5.739′
M32 · NGC 221Galaxy 8.17.7′
M110 · NGC 205Galaxy 8.216.2′
NGC 7662 (Copeland's Blue Snowball)Planetary nebula 8.30.3′
NGC 956 (on the map)Open star cluster 8.94.5′
NGC 891 (on the map)Galaxy 1013′
NGC 404 (on the map)Galaxy 10.63.4′
NGC 7640 (on the map)Galaxy 118.1′
IC 239 (on the map)Galaxy 11.24.3′
NGC 529 (on the map)Galaxy 12.12.2′

Smaller magnitudes are brighter; the faintest stars the eye sees are about 6. The full Moon is about 31′ across.

Data: IAU constellation boundaries (Roman 1987) · OpenNGC (Mattia Verga, CC BY-SA 4.0) · Data sources & credits