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Barred spiral galaxy

Index Barred spiral galaxy

A barred spiral galaxy is a spiral galaxy with a central bar-shaped structure composed of stars. [1]

60 relations: Active galactic nucleus, Barred lenticular galaxy, Canis Major, Coma Berenices, Constellation, Density wave theory, Dorado, Edwin Hubble, Elliptical galaxy, Eridanus (constellation), European Southern Observatory, Firehose instability, Fornax, Galaxy formation and evolution, Galaxy morphological classification, Horologium (constellation), Hubble sequence, Hubble Space Telescope, Hypothesis, Interstellar medium, Irregular galaxy, Lenticular galaxy, Leo (constellation), Magellanic Clouds, Magellanic spiral, Messier 108, Messier 109, Messier 58, Messier 83, Messier 91, Messier 95, Milky Way, NGC 1073, NGC 1300, NGC 1365, NGC 1512, NGC 2217, NGC 2787, NGC 2903, NGC 3953, NGC 4314, NGC 4921, NGC 5398, NGC 55, Orbital resonance, Pegasus (constellation), Press release, Scientific American, Simon & Schuster, Sky & Telescope, ..., Solar System, Spiral galaxy, Star, Star formation, Tucana, UGC 12158, University of Wisconsin System, Ursa Major, Virgo (constellation), W. H. Freeman and Company. Expand index (10 more) »

Active galactic nucleus

An active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much higher than normal luminosity over at least some portion—and possibly all—of the electromagnetic spectrum, with characteristics indicating that the excess luminosity is not produced by stars.

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Barred lenticular galaxy

A barred lenticular galaxy is a lenticular version of a barred spiral galaxy.

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Canis Major

Canis Major is a constellation in the southern celestial hemisphere.

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Coma Berenices

Coma Berenices is an ancient asterism in the northern sky which has been defined as one of the 88 modern constellations.

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Constellation

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.

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Density wave theory

Density wave theory or the Lin-Shu density wave theory is a theory proposed by C.C. Lin and Frank Shu in the mid-1960s to explain the spiral arm structure of spiral galaxies.

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Dorado

Dorado (English pronunciation) is a constellation in the southern sky.

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Edwin Hubble

Edwin Powell Hubble (November 20, 1889 – September 28, 1953) was an American astronomer.

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Elliptical galaxy

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

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Eridanus (constellation)

Eridanus is a constellation in the southern hemisphere.

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European Southern Observatory

The European Southern Observatory (ESO) is a 15-nation intergovernmental research organization for ground-based astronomy.

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Firehose instability

The firehose instability (or hose-pipe instability) is a dynamical instability of thin or elongated galaxies.

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Fornax

Fornax is a constellation in the southern sky, partly ringed by the celestial river Eridanus.

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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.

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Galaxy morphological classification

Galaxy morphological classification is a system used by astronomers to divide galaxies into groups based on their visual appearance.

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Horologium (constellation)

Horologium is a faint constellation in the southern sky.

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Hubble sequence

The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926.

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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.

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Hypothesis

A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon.

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Interstellar medium

In astronomy, the interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy.

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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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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.

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Leo (constellation)

Leo is one of the constellations of the zodiac, lying between Cancer the crab to the west and Virgo the maiden to the east.

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Magellanic Clouds

The Magellanic Clouds (or Nubeculae Magellani) are two irregular dwarf galaxies visible in the Southern Celestial Hemisphere; they are members of the Local Group and are orbiting the Milky Way galaxy.

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Magellanic spiral

Magellanic spiral galaxies are (usually) dwarf galaxies which are classified as the type Sm (and SAm, SBm, SABm).

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Messier 108

Messier 108 (also known as NGC 3556) is a barred spiral galaxy in the constellation Ursa Major.

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Messier 109

Messier 109 (also known as NGC 3992) is a barred spiral galaxy exhibiting a weak inner ring structure around the central bar approximately It is also by far the most distant object in the Messier Catalog, followed by M91 away in the constellation Ursa Major.

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Messier 58

Messier 58 (also known as M58 and NGC 4579) is an intermediate barred spiral galaxy with a weak inner ring structure located within the constellation Virgo, approximately 68 million light-years away from Earth.

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Messier 83

Messier 83 (also known as the Southern Pinwheel Galaxy, M83 or NGC 5236) is a barred spiral galaxy approximately 15 million light-years away in the constellation Hydra.

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Messier 91

Messier 91 (also known as NGC 4548 or M91) is a barred spiral galaxy located in the Coma Berenices constellation and is part of the Virgo Cluster of galaxies.

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Messier 95

Messier 95, also known as M95 or NGC 3351, is a barred spiral galaxy located about 38 million light-years away in the zodiac constellation Leo.

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Milky Way

The Milky Way is the galaxy that contains our Solar System.

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NGC 1073

NGC 1073 is a barred spiral galaxy in the constellation Cetus.

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NGC 1300

NGC 1300 is a barred spiral galaxy about 61 million light-years away in the constellation Eridanus.

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NGC 1365

NGC 1365, also known as the Great Barred Spiral Galaxy, is a barred spiral galaxy about 56 million light-years away in the constellation Fornax.

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NGC 1512

NGC 1512 is a barred spiral galaxy approximately 38 million light-years away from Earth in the constellation Horologium.

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NGC 2217

NGC 2217 is a nearly face-on lenticular galaxy of about 100 thousand light-years across that lies roughly 65 million light years from Earth in the constellation of Canis Major.

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NGC 2787

NGC 2787 is a barred lenticular galaxy approximately 24 million light-years away in the constellation Ursa Major.

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NGC 2903

NGC 2903 is a field barred spiral galaxy about 30 million light-years away in the constellation Leo.

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NGC 3953

NGC 3953 is a barred spiral galaxy located in the constellation Ursa Major.

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NGC 4314

NGC 4314 is a barred spiral galaxy approximately 40 million light-years away in the constellation Coma Berenices.

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NGC 4921

NGC 4921 is a barred spiral galaxy in the Coma Cluster, located in the constellation Coma Berenices.

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NGC 5398

NGC 5398 is a barred spiral galaxy in the constellation Centaurus.

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NGC 55

NGC 55, also occasionally referred to as The Whale Galaxy, is a Magellanic type barred spiral galaxy located about 7 million light-years away in the constellation Sculptor.

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Orbital resonance

In celestial mechanics, an orbital resonance occurs when orbiting bodies exert a regular, periodic gravitational influence on each other, usually because their orbital periods are related by a ratio of small integers.

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Pegasus (constellation)

Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology.

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Press release

A press release, news release, media release, press statement or video release is a written or recorded communication directed at members of the news media for the purpose of announcing something ostensibly newsworthy.

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Scientific American

Scientific American (informally abbreviated SciAm) is an American popular science magazine.

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Simon & Schuster

Simon & Schuster, Inc., a subsidiary of CBS Corporation, is an American publishing company founded in New York City in 1924 by Richard Simon and Max Schuster.

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Sky & Telescope

Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.

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Solar System

The Solar SystemCapitalization of the name varies.

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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.

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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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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.

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Tucana

Tucana is a constellation of stars in the southern sky, named after the toucan, a South American bird.

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UGC 12158

UGC 12158 or PGC 69533 is an Sb-type barred spiral galaxy located at approximately away from Earth in the constellation of Pegasus.

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University of Wisconsin System

The University of Wisconsin System is a university system of public universities in the state of Wisconsin.

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Ursa Major

Ursa Major (also known as the Great Bear) is a constellation in the northern sky, whose associated mythology likely dates back into prehistory.

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Virgo (constellation)

Virgo is one of the constellations of the zodiac.

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W. H. Freeman and Company

W.

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Redirects here:

Barred Galaxy, Barred Spiral, Barred Spiral Galaxies, Barred Spiral Galaxy, Barred Spiral galaxies, Barred Spiral galaxy, Barred spiral, Barred spiral galaxies, Barred-spiral galaxy, SBa, SBb, SBc, Unbarred spiral galaxies.

References

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

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