Andromeda, the Daughter of Cepheus (And)

(an-DRAH-mih-duh)

The Northern constellation of Andromeda, the Daughter of Cepheus, is best viewed in Fall during the month of November. It's brightest star is Alpheratz at magnitude 2.10. The boundary of the Andromeda constellation contains 19 stars that host known exoplanets.

Ross-248 (Gliese 905) is the 10th closest star to Earth at 10.3 light years.

1. Pronunciation:
2. an-DRAH-mih-duh

1. Meaning:
2. Daughter of Cepheus

1. Genitive:
2. Andromedae

1. Abbreviation:
2. And

1. Constellation Family:
2. Perseus

1. Hemisphere:
2. Northern

1. Quadrant:
2. NQ1

1. Best viewing month*:
2. November

1. Right Ascension (avg):
2. 0h 34m

1. Declination (avg):
2. 39° 15'

1. Brightest star:
2. Alpheratz (2.10)

1. Stars with planets:
2. 19

1. Messier catalog objects:
2. M110 | M31 | M32 |

1. Caldwell catalog objects:
2. C22 | C23 | C28 |

Brightest Stars in Andromeda

The 10 brightest stars in the constellation Andromeda by magnitude.

1. Star
2. Magnitude
3. Spectral class

1. Alpha Andromedae (α And)
2. 2.07
3. B9p

1. Beta Andromedae (β And)
2. 2.07
3. M0IIIvar

1. Gamma Andromedae (γ¹ And)
2. 2.1
3. K3IIb

1. Delta Andromedae (δ And)
2. 3.27
3. K3III

1. 51 Andromedae (51 And)
2. 3.59
3. K3III

1. Omicron Andromedae (ο And)
2. 3.62
3. B6pv SB

1. Lambda Andromedae (λ And)
2. 3.81
3. G8III-IV

1. Mu Andromedae (μ And)
2. 3.86
3. A5V

1. Zeta Andromedae (ζ And)
2. 4.08
3. K1II

Double Stars in Andromeda

These are the brightest and easiest-to-find double, triple, and quadruple star systems in the constellation Andromeda. Also see all star clusters.

1. Star system
2. Magnitudes
3. Type

1. Gamma Andromedae
2. 2.3, 5.0
3. double

Star Clusters in Andromeda

The most notable and easy-to-find star clusters in the constellation Andromeda . Also see all star clusters.

1. Star cluster
2. Catalog #
3. Cluster type

1. NGC 752
3. open

Nebulae in Andromeda

Notable and easy-to-find nebulae in the constellation Andromeda . Also see all nebulae.

1. Nebula name
2. Catalog #
3. Nebula type

1. Blue Snowball Nebula
2. C22
3. planetary

Galaxies in Andromeda

The most notable, famous, and easy-to-find galaxies in the constellation Andromeda . Also see all galaxies.

1. Galaxy name
2. Alt name
3. Galaxy type

1. Andromeda Galaxy
2. M31
3. barred spiral

1. Messier 110
2. M110
3. elliptical dwarf

1. Messier 32
2. M32
3. dwarf

Black Holes in Andromeda

These are the most well-known smaller (non-supermassive) black holes in the constellation Andromeda. Although black holes cannot be seen directly, the smaller ones are at the center of some star clusters and supernova remnant nebulae, which can be seen. Supermassive black holes are at the center of most galaxies, such as Sagittarius A* at the center of our Milky Way galaxy. Also see all black holes.

1. Black hole
3. Type

1. Messier 110
3. intermediate

Exoplanets in Andromeda

These are the most notable named exoplanet systems known in the constellation Andromeda. Bear in mind that we will likely discover billions of exoplanets in the years to come. Also see all exoplanets.

1. Host star name
3. Exoplanet name

1. Buna
3. Abol

1. Sterrennacht
3. Nachtwacht

1. Titawin
3. Majriti

1. Titawin
3. Saffar

1. Titawin
3. Samh

1. Veritate
3. Spe

* For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer in the month of July, in the southern hemisphere the constellation would be best viewed in the winter in January and would be upside-down.

** Circumpolar constellations are visible year-round in the hemisphere listed (and not at all in the opposite).