NGC 7320 is a

spiral galaxy Spiral galaxies form a galaxy morphological classification, class of galaxy originally described by Edwin Hubble in his 1936 work ''The Realm of the Nebulae''

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 first constellati ...

Pegasus Pegasus (; ) is a winged horse in Greek mythology, usually depicted as a white stallion. He was sired by Poseidon, in his role as horse-god, and foaled by the Gorgon Medusa. Pegasus was the brother of Chrysaor, both born from Medusa's blood w ...

. It was discovered on 27 September 1873 by

French French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices Arts and media * The French (band), ...

astronomer

Édouard Stephan Édouard Jean-Marie Stephan (31 August 1837 – 31 December 1923) was a French astronomer. His surname is sometimes spelled Stéphan in some literature, but this is apparently erroneous. He was born in Sainte Pezenne (today one of the districts o ...

. NGC 7320 is a member of

Stephan's Quintet Stephan's Quintet is a visual grouping of five galaxies of which four form the first Galaxy group#Compact Groups, compact galaxy group ever discovered. The group, visible in the constellation Pegasus (constellation), Pegasus, was discovered by É ...

, however, it is not an actual member of the

galaxy group A galaxy group or group of galaxies (GrG) is an aggregation of galaxies comprising about 50 or fewer gravitationally bound members, each at least as luminous as the Milky Way (about 1010 times the luminosity of the Sun); collections of galaxi ...

, but a much closer line-of-sight galaxy at a distance of about 40 million

light year A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distance, astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by t ...

s, the same as the nearby

NGC 7331 NGC 7331, also known as Caldwell 30, is an unbarred spiral galaxy about away in the constellation Pegasus. It was discovered by William Herschel on 6 September 1784. The galaxy appears similar in size and structure to the Milky Way, and is som ...

. Other galaxies of Stephan's Quintet are some 300 million

light-year A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by the International Astr ...

s distant. NGC 7320 has extensive H II regions, identified as red blobs, where active star formation is occurring. The galaxy was imaged by the

James Webb Space Telescope The James Webb Space Telescope (JWST) is a space telescope designed to conduct infrared astronomy. As the largest telescope in space, it is equipped with high-resolution and high-sensitivity instruments, allowing it to view objects too old, Lis ...

as part of Stephan's Quintet; the picture was released on 12 July 2022.

Image gallery

File:NGC 7320 photograph by James Webb Space Telescope - 12 July 2022.png, NGC 7320 imaged by the James Webb Space Telescope.

References

External links

* * *https://webbtelescope.org/contents/news-releases/2022/news-2022-034 7320

NGC 7320 NGC 7320 is a spiral galaxy Spiral galaxies form a galaxy morphological classification, class of galaxy originally described by Edwin Hubble in his 1936 work ''The Realm of the Nebulae''319 __NOTOC__ Year 319 ( CCCXIX) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantinus and Licinius (or, less frequently, year 1072 ''Ab urbe condita''). The denominat ...

Unbarred spiral galaxies Pegasus (constellation) Astronomical objects discovered in 1873 Discoveries by Édouard Stephan {{spiral-galaxy-stub

Image gallery

See also

References

External links