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NGC 7332 is an edge-on peculiar lenticular galaxy[1][3] located about 67 million light-years away in the constellation Pegasus.[2] It possesses a (peanut shell)-shaped bulge, associated with stellar bar.[5] It was discovered on September 19, 1784 by the astronomer William Herschel.[6]

NGC 7332
SDSS image of NGC 7332
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension22h 37m 24.5s[1]
Declination+23° 47′ 54″[1]
Redshift0.003909[1]
Helio radial velocity1197 ± 5 km/s[1]
Distance67.1 ± 11 Mly
(20.6 ± 3.4 Mpc)[2]
Apparent magnitude (V)12.0[1]
Characteristics
TypeS0 pec edge-on[1]
lenticular galaxy[3]
Apparent size (V)4.1' × 1.1'[1]
Other designations
UGC 12115, MCG +04-53-008, PGC 69342[4]

NGC 7332 and NGC 7339 form a dynamically isolated binary system (number 570 in the catalog of double galaxies compiled by Igor Karachentsev),[3] and are likely orbiting each other.[3] NGC 7332 is the brighter of the two galaxies.[3]

In the sky NGC 7339 lies 5' away from NGC 7332.[7] NGC 7332 is an unusually blue object with a corrected apparent B-magnitude of 11.5.[7] A 130mm to 200mm telescope will be needed to visually detect this pair of galaxies.[8] The two galaxies will appear at almost a right angle to one another.


References


  1. "NASA/IPAC Extragalactic Database". Results for NGC 7332. Retrieved 2010-07-12.
  2. "Distance Results for NGC 7332". NASA/IPAC Extragalactic Database. Retrieved 2010-07-12.
  3. "NGC7332/7339". National Optical Astronomy Observatory (NOAO). Retrieved 2010-07-12.
  4. "NGC 7332". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-19.
  5. Bogdan C. Ciambur; Alister W. Graham (2016), Quantifying the (X/peanut)-shaped structure in edge-on disc galaxies: length, strength, and nested peanuts
  6. Seligman, Courtney. "New General Catalogue objects: NGC 7300 - 7349". cseligman.com. Retrieved 2021-02-19.
  7. Fisher, David; Illingworth, Garth; Franx, Marijn (1994). "The dynamics and structure of the S0 galaxy NGC 7332". Astronomical Journal. 107 (1): 160–172. Bibcode:1994AJ....107..160F. doi:10.1086/116841.
  8. "Re: NGC 7332 and NGC 7339". Cloudy Nights Forum Archives (Deep Sky Observing). 2005-08-27. Retrieved 2010-07-12.



На других языках

[de] NGC 7332

NGC 7332 ist eine Linsenförmige Galaxie vom Hubble-Typ S0 Sternbild Pegasus am Nordsternhimmel. Sie ist schätzungsweise 62 Mio. Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 65.000 Lj.
- [en] NGC 7332

[ru] NGC 7332

NGC 7332 (другие обозначения — PGC 69342, UGC 12115, MCG 4-53-8, ZWG 474.12, KCPG 570A) — линзообразная галактика (S0) в созвездии Пегас.


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