Astronomy:NGC 1175
| Peanut Galaxy | |
|---|---|
 The galaxy, as captured by the Hubble Space Telescope during the Gems of the Galaxy Zoos project | |
| Observation data (J2000 epoch) | |
| Constellation | Perseus |
| Right ascension | 03h 04m 32s |
| Declination | +42° 20′ 21″ |
| Apparent magnitude (B) | 13.8 |
| Characteristics | |
| Type | S0A-S0B-SABa |
| Other designations | |
NGC 1175,
PGC 11578, MCG 7-7-19, UGC 2515,CGCG 540-32 | |
NGC 1175,[1] also known as the Peanut Galaxy,[2] is a large lenticular galaxy located in the constellation Perseus. Its speed relative to the cosmic microwave background is 5,349 ± 19 km/s, which corresponds to a Hubble distance of 78.9 ± 5.5 Mpc (~257 million ly).[3] It was discovered by the German-British astronomer William Herschel in 1786.[4]
It is notable for odd appearance when viewed edge-on, resembling an unshelled peanut or giant "X".[2] Astronomers think these kinds of structures began forming around 7 billion years ago.[2] Their formation is related to the formation of galactic bars.[2]
NGC 1175 is about the same distance from the Milky Way as NGC 1177. These two galaxies form a gravitationally interacting pair.[3]
To date, a non-redshift measurement gives a distance of approximately 44,900 Mpc (~146 million ly).[5] This value is far outside the Hubble distance values. Note that it is with the average value of independent measurements, when they exist, that the NASA/IPAC database calculates the diameter of a galaxy.[3]
See also
External links
References
- ↑ "Revised IC and NGC Catalog". http://astrovalleyfield.ca/AstronomieCompl/NGC%20et%20autres/WolfgangS/N1100_exc_web.htm.
- ↑ 2.0 2.1 2.2 2.3 Lazaro, Enrico de (2019-12-17). "Hubble Space Telescope Looks at Stunning Peanut Galaxy | Sci.News" (in en-US). https://www.sci.news/astronomy/hubble-peanut-galaxy-07923.html.
- ↑ 3.0 3.1 3.2 "By Name | NASA/IPAC Extragalactic Database". http://ned.ipac.caltech.edu/byname?objname=NGC+1175&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1.
- ↑ "New General Catalog Objects: NGC 1150 - 1199". https://cseligman.com/text/atlas/ngc11a.htm.
- ↑ "NED Query Results for NGC 1175". https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+1175.
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