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Holmberg IX

Index Holmberg IX

Holmberg IX is a dwarf irregular galaxy and a satellite galaxy of M81. [1]

18 relations: Astronomy & Astrophysics, Erik Holmberg (astronomer), Galaxy, GALEX, Irregular galaxy, Light-year, List of galaxies named after people, Lyon-Meudon Extragalactic Database, Messier 81, Myr, NASA, Parsec, Principal Galaxies Catalogue, Satellite galaxy, Science Daily, Sky-Map.org, The Astrophysical Journal, University of Toronto.

Astronomy & Astrophysics

Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.

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Erik Holmberg (astronomer)

Erik Holmberg (13 November 1908 – 1 February 2000) was a Swedish astronomer and cosmologist.

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A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

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The Galaxy Evolution Explorer (GALEX) is an orbiting ultraviolet space telescope launched on April 28, 2003, and operated until early 2012.

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Irregular galaxy

An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy.

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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.

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List of galaxies named after people

A small number of galaxies or galaxy groups have been named after individual people.

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Lyon-Meudon Extragalactic Database

The Lyon-Meudon Extragalactic Database (LEDA) was a database of galaxies, created in 1983 at the Lyon Observatory.

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Messier 81

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away, in the constellation Ursa Major.

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The abbreviation myr, "million years", is a unit of a quantity of (i.e.) years, or 31.6 teraseconds.

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The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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

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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.

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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).

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Science Daily

Science Daily is an American website that aggregates press releases and publishes lightly edited press releases (a practice called churnalism) about science, similar to Phys.org and EurekAlert!.

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Sky-Map.org (or WikiSky.org) is a wiki and interactive sky map that covers more than half a billion celestial objects.

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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.

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University of Toronto

The University of Toronto (U of T, UToronto, or Toronto) is a public research university in Toronto, Ontario, Canada on the grounds that surround Queen's Park.

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

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