Constellation · Andromeda · And

Andromeda constellation: how to find it, when to see it and what is in it

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In short

Andromeda (And) is a northern constellation covering 722 square degrees, number 19 of 88 by size. Its brightest star is Alpheratz, a blue-white subgiant, magnitude 2.1. It is best seen in the evening in November. Over London it rises and sets and is well placed in its season. Its neighbours in the sky: Cassiopeia, Lacerta, Pegasus, Perseus, Pisces, Triangulum.

Area: 722 square degrees, 19 of 88 · Neighbours: Cassiopeia, Lacerta, Pegasus, Perseus, Pisces, Triangulum · Updated 10 October 2026

How to find Andromeda

1
When to look
The best time is in November in the evening: in the south, around 21:13.
2
Use the neighbours
Find it from the neighbouring constellations: Cassiopeia, Lacerta, Pegasus, Perseus.
3
Brightest stars
The brightest stars of the figure: Alpheratz (2.1ᵐ), Mirach (2.1ᵐ), Almach (2.3ᵐ).

When it is visible over London

Month	Where and when	Conditions
January	in the south, around 17:41	in the evening
February	in the west, around 18:29	in the evening
March	in the northwest, around 19:17	in the evening
April — may	in the northeast, around 04:31	low, needs an open horizon
June — july	in the east, around 02:36	before dawn
August	in the south, around 04:18	before dawn
September — october	in the south, around 02:13	around midnight
November — december	in the south, around 21:13	in the evening

Stars of the constellation

Star	What it is	Magnitude
Alpheratz · α And	blue-white subgiant	2.1ᵐ
Mirach · β And	red giant	2.1ᵐ
Almach · γ¹ And	orange bright giant	2.3ᵐ
δ And	orange giant	3.3ᵐ
μ And	white main-sequence star	3.9ᵐ
ν And	blue-white main-sequence star	4.5ᵐ