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

Messier 32

Index Messier 32

Messier 32 (also known as NGC 221) is a dwarf "early-type" galaxy located about 2.65 million light-years from Earth, appearing in the constellation Andromeda. [1]

38 relations: Accretion (astrophysics), Andromeda (constellation), Andromeda Galaxy, Annual Review of Astronomy and Astrophysics, Astrophysics (journal), Atlas of Peculiar Galaxies, Brady Haran, Constellation, Effective radius, Elliptical galaxy, Galactic tide, Galaxy formation and evolution, Gravitational microlensing, Guillaume Le Gentil, Hubble Space Telescope, Kilometre, Lenticular galaxy, Light-year, List of Andromeda's satellite galaxies, List of galaxies, Messier object, Monthly Notices of the Royal Astronomical Society, New General Catalogue, Orders of magnitude (length), Parsec, Planetary nebula, Principal Galaxies Catalogue, Sagittarius A*, Satellite galaxy, Second, Spiral galaxy, Star formation, Supermassive black hole, Surface brightness fluctuation, The Astronomical Journal, The Astrophysical Journal, Tip of the red-giant branch, Uppsala General Catalogue.

Accretion (astrophysics)

In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, typically gaseous matter, in an accretion disk.

New!!: Messier 32 and Accretion (astrophysics) · See more »

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!!: Messier 32 and Andromeda (constellation) · See more »

Andromeda Galaxy

The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth, and the nearest major galaxy to the Milky Way.

New!!: Messier 32 and Andromeda Galaxy · See more »

Annual Review of Astronomy and Astrophysics

The Annual Review of Astronomy and Astrophysics is an annual peer reviewed scientific journal published by Annual Reviews.

New!!: Messier 32 and Annual Review of Astronomy and Astrophysics · See more »

Astrophysics (journal)

Astrophysics is a peer-reviewed scientific journal of astrophysics published by Springer.

New!!: Messier 32 and Astrophysics (journal) · See more »

Atlas of Peculiar Galaxies

The Atlas of Peculiar Galaxies is a catalog of peculiar galaxies produced by Halton Arp in 1966.

New!!: Messier 32 and Atlas of Peculiar Galaxies · See more »

Brady Haran

Brady John Haran (born 18 June 1976) is an Australian-born British independent filmmaker and video journalist who is known for his educational videos and documentary films produced for BBC News and his YouTube channels, the most notable being Periodic Videos and Numberphile.

New!!: Messier 32 and Brady Haran · 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!!: Messier 32 and Constellation · See more »

Effective radius

The effective radius (R_e) of a galaxy is the radius at which half of the total light of the system is emitted.

New!!: Messier 32 and Effective radius · See more »

Elliptical galaxy

An elliptical galaxy is a type of galaxy having an approximately ellipsoidal shape and a smooth, nearly featureless image.

New!!: Messier 32 and Elliptical galaxy · See more »

Galactic tide

A galactic tide is a tidal force experienced by objects subject to the gravitational field of a galaxy such as the Milky Way.

New!!: Messier 32 and Galactic tide · See more »

Galaxy formation and evolution

The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies.

New!!: Messier 32 and Galaxy formation and evolution · See more »

Gravitational microlensing

Gravitational microlensing is an astronomical phenomenon due to the gravitational lens effect.

New!!: Messier 32 and Gravitational microlensing · See more »

Guillaume Le Gentil

Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galaisière (Coutances, 12 September 1725 – Paris, 22 October 1792) was a French astronomer.

New!!: Messier 32 and Guillaume Le Gentil · See more »

Hubble Space Telescope

The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.

New!!: Messier 32 and Hubble Space Telescope · See more »


The kilometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: km; or) or kilometer (American spelling) is a unit of length in the metric system, equal to one thousand metres (kilo- being the SI prefix for). It is now the measurement unit used officially for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the road network of the United Kingdom where the statute mile is the official unit used.

New!!: Messier 32 and Kilometre · See more »

Lenticular galaxy

A lenticular galaxy (denoted S0) is a type of galaxy intermediate between an elliptical (denoted E) and a spiral galaxy in galaxy morphological classification schemes.

New!!: Messier 32 and Lenticular galaxy · See more »


The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.

New!!: Messier 32 and Light-year · See more »

List of Andromeda's satellite galaxies

The Andromeda Galaxy (M31) has satellite galaxies just like the Milky Way.

New!!: Messier 32 and List of Andromeda's satellite galaxies · See more »

List of galaxies

The following is a list of notable galaxies.

New!!: Messier 32 and List of galaxies · See more »

Messier object

The Messier objects are a set of 110 astronomical objects, of which 103 were included in lists published by French astronomer Charles Messier in 1771 and 1781.

New!!: Messier 32 and Messier object · See more »

Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

New!!: Messier 32 and Monthly Notices of the Royal Astronomical Society · See more »

New General Catalogue

The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888.

New!!: Messier 32 and New General Catalogue · See more »

Orders of magnitude (length)

The following are examples of orders of magnitude for different lengths.

New!!: Messier 32 and Orders of magnitude (length) · See more »


The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.

New!!: Messier 32 and Parsec · See more »

Planetary nebula

A planetary nebula, abbreviated as PN or plural PNe, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.

New!!: Messier 32 and Planetary nebula · See more »

Principal Galaxies Catalogue

The Catalogue of Principal Galaxies (PGC) is an astronomical catalog published in 1989 that lists B1950 and J2000 equatorial coordinates and cross-identifications for 73,197 galaxies.

New!!: Messier 32 and Principal Galaxies Catalogue · See more »

Sagittarius A*

Sagittarius A* (pronounced "Sagittarius A-star", standard abbreviation Sgr A*) is a bright and very compact astronomical radio source at the center of the Milky Way, near the border of the constellations Sagittarius and Scorpius.

New!!: Messier 32 and Sagittarius A* · See more »

Satellite galaxy

A satellite galaxy is a smaller companion galaxy that travels on bound orbits within the gravitational potential of a more massive and luminous host galaxy (also known as the primary galaxy).

New!!: Messier 32 and Satellite galaxy · See more »


The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.

New!!: Messier 32 and Second · See more »

Spiral galaxy

Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae(pp. 124–151) and, as such, form part of the Hubble sequence.

New!!: Messier 32 and Spiral galaxy · See more »

Star formation

Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as "stellar nurseries" or "star-forming regions", collapse and form stars.

New!!: Messier 32 and Star formation · See more »

Supermassive black hole

A supermassive black hole (SMBH or SBH) is the largest type of black hole, on the order of hundreds of thousands to billions of solar masses, and is found in the centre of almost all currently known massive galaxies.

New!!: Messier 32 and Supermassive black hole · See more »

Surface brightness fluctuation

Surface brightness fluctuation (SBF) is a secondary distance indicator used to estimate distances to galaxies.

New!!: Messier 32 and Surface brightness fluctuation · See more »

The Astronomical Journal

The Astronomical Journal (often abbreviated AJ in scientific papers and references) is a peer-reviewed monthly scientific journal owned by the American Astronomical Society and currently published by IOP Publishing.

New!!: Messier 32 and The Astronomical Journal · See more »

The Astrophysical Journal

The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.

New!!: Messier 32 and The Astrophysical Journal · See more »

Tip of the red-giant branch

Tip of the red-giant branch (TRGB) is a primary distance indicator used in astronomy.

New!!: Messier 32 and Tip of the red-giant branch · See more »

Uppsala General Catalogue

The Uppsala General Catalogue of Galaxies (UGC) is a catalogue of 12,921 galaxies visible from the northern hemisphere.

New!!: Messier 32 and Uppsala General Catalogue · See more »

Redirects here:

2MASX J00424182+4051546, APG 168, Ark 12, Arp 168, Dwarf Elliptical Galaxy M32, Dwarf elliptical galaxy M32, Elliptical Galaxy M32, IRAS 00399+4035, K79 1B, LEDA 2555, MCG+07-02-015, Messier Object 32, NGC 221, NGC221, PGC 2555, RX J0042.6+4052, UGC 452, Z 0039.9+4036, Z 535-16.


[1] https://en.wikipedia.org/wiki/Messier_32

Hey! We are on Facebook now! »