NGC 1792 is a

spiral galaxy Spiral galaxies form a class of galaxy originally described by Edwin Hubble in his 1936 work ''The Realm of the Nebulae''Columba Columba or Colmcille; gd, Calum Cille; gv, Colum Keeilley; non, Kolban or at least partly reinterpreted as (7 December 521 – 9 June 597 AD) was an Irish abbot and missionary evangelist credited with spreading Christianity in what is toda ...

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...

. It was discovered by Scottish astronomer James Dunlop on October 4, 1826. This galaxy is located at a distance of about 36.4 million light-years and is receding from the

Milky Way The Milky Way is the galaxy that includes our Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye ...

with a heliocentric

radial velocity The radial velocity or line-of-sight velocity, also known as radial speed or range rate, of a target with respect to an observer is the temporal rate of change, rate of change of the distance or Slant range, range between the two points. It is e ...

of 1,208 km/s. NGC 1792 is a member of the NGC 1808 cluster of galaxies. The morphological classification of this galaxy in the de Vaucouleurs system is SA(rs)bc, indicating a spiral galaxy with no central bar (SA), moderately wound arms (bc), and an incomplete ring structure. However, the

HyperLEDA The Lyon-Meudon Extragalactic Database (LEDA) was a database of galaxies, created in 1983 at the Lyon Observatory. Each galaxy had a number assigned to it, which is now known as its PGC number. The Principal Galaxies Catalogue The Catalogue of ...

classification of SBbc suggests it does have a bar. It has a flocculent appearance with no central bulge. In the

B-band The NATO B band is the obsolete designation given to the radio frequencies from 250 to 500 MHz (equivalent to wavelengths between 1.20 and 0.60 m) during the cold war period. Since 1992 frequency allocations, allotment and assignments are in line ...

, the angular extend of the galaxy spans . The plane of the galaxy is inclined at an angle of 66° to the line of sight from the Earth, with the major axis being aligned along a position angle of 317°. There is a high level of

star formation Star formation is the process by which dense regions within molecular clouds in The "medium" is present further soon.-->interstellar space

along the spiral arms at distances of more than from the galactic core, which have led to a number of prominent H II regions. A comparable high level of

star formation Star formation is the process by which dense regions within molecular clouds in The "medium" is present further soon.-->interstellar space

in the nearby NGC 1808 galaxy may indicate a recent, distant tidal interaction between the two.

Radio emission Radio waves are a type of electromagnetic radiation with the longest wavelengths in the electromagnetic spectrum, typically with frequencies of 300 gigahertz (GHz) and below. At 300 GHz, the corresponding wavelength is 1 mm (shor ...

from the neutral hydrogen in the NGC 1792 galaxy shows a pronounced asymmetry, most likely as a result of this interaction. As the galaxy appears only slightly disturbed, this interaction mainly impacted the outer parts of the galaxy. The star formation rate in NGC 1792 is estimated to be ·yr⁻¹. Soft

x-ray emission Astrophysical X-ray sources are astronomical objects with physical properties which result in the emission of X-rays. Several types of astrophysical objects emit X-rays. They include galaxy clusters, black holes in active galactic nuclei (AGN), ...

has been detected, the majority of which may be coming from

X-ray binaries X-ray binaries are a class of binary stars that are luminous in X-rays. The X-rays are produced by matter falling from one component, called the ''donor'' (usually a relatively normal star), to the other component, called the ''accretor'', which ...

References

External links

http://www.skyfactory.org/deepskycatalogue/db_list.asp?q=(Name~contains~NGC1792) {{DEFAULTSORT:NGC 1792 Unbarred spiral galaxies Flocculent spiral galaxies Columba (constellation) 305-6

1792 Events January–March * January 9 – The Treaty of Jassy ends the Russian Empire's war with the Ottoman Empire over Crimea. * February 18 – Thomas Holcroft produces the comedy '' The Road to Ruin'' in London. * February ...

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