Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

9 Andromedae

Index 9 Andromedae

9 Andromedae (abbreviated 9 And) is a variable star in the constellation Andromeda. [1]

11 relations: Andromeda (constellation), Apparent magnitude, Beta Lyrae, Bright Star Catalogue, Constellation, Durchmusterung, Flamsteed designation, Henry Draper Catalogue, Smithsonian Astrophysical Observatory Star Catalog, Variable star, Variable star designation.

Andromeda (constellation)

Andromeda is one of the 48 constellations listed by the 2nd-century Greco-Roman astronomer Ptolemy and remains one of the 88 modern constellations.

New!!: 9 Andromedae and Andromeda (constellation) · See more »

Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

New!!: 9 Andromedae and Apparent magnitude · See more »

Beta Lyrae

Beta Lyrae (Latinized from β Lyrae, abbreviated Beta Lyr, β Lyr), also named Sheliak, is a binary star system approximately from the Sun in the constellation of Lyra.

New!!: 9 Andromedae and Beta Lyrae · See more »

Bright Star Catalogue

The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.

New!!: 9 Andromedae and Bright Star Catalogue · See more »


A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

New!!: 9 Andromedae and Constellation · See more »


In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.

New!!: 9 Andromedae and Durchmusterung · See more »

Flamsteed designation

A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.

New!!: 9 Andromedae and Flamsteed designation · See more »

Henry Draper Catalogue

The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.

New!!: 9 Andromedae and Henry Draper Catalogue · See more »

Smithsonian Astrophysical Observatory Star Catalog

The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.

New!!: 9 Andromedae and Smithsonian Astrophysical Observatory Star Catalog · See more »

Variable star

A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.

New!!: 9 Andromedae and Variable star · See more »

Variable star designation

Variable stars are designated using a variation on the Bayer designation format of an identifying label (as described below) combined with the Latin genitive of the name of the constellation in which the star lies.

New!!: 9 Andromedae and Variable star designation · See more »

Redirects here:

9 And, AN And, AN Andromedae, HD 219815, HIC 115065, HIP 115065, HR 8864, SAO 52881.


[1] https://en.wikipedia.org/wiki/9_Andromedae

Hey! We are on Facebook now! »