NGC 7042 is a spiral galaxy located about 210 million light-years away in the constellation of Pegasus.[2][3] NGC 7042 is part of a pair of galaxies that contains the galaxy NGC 7043.[4] Astronomer William Herschel discovered NGC 7042 on October 16, 1784.[5]

NGC 7042
The spiral galaxy NGC 7042 (lower right) and NGC 7043 (upper left).
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension21h 13m 45.9074s[1]
Declination+13° 34 29.745[1]
Redshift0.016952[1]
Heliocentric radial velocity5,082 km/s[1]
Distance211.9 Mly
Apparent magnitude (V)12.77[1]
Characteristics
TypeSb [1]
Size~146,110 ly (estimated)[1]
Apparent size (V)2.0 x 1.8[1]
Other designations
KCPG 555A, IRAS 21113+1321, UGC 11702, MCG 2-54-13, PGC 66378, CGCG 426-23[1]

Supernova

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One supernova has been observed in NGC 7042:

  • SN 2013fw (Type Ia, mag. 17.1) was discovered by Zhangwei Jin and Xing Gao on October 23, 2013.[6][7][8]

References

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  1. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for NGC 7042. Retrieved 2017-06-26.
  2. Rojas, Sebastián García. "Galaxy NGC 7042 - Galaxy in Pegasus Constellation · Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-10-14. Retrieved 2017-06-27.
  3. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-06-27.
  4. "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-10-13.
  5. "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2017-06-27.
  6. Jin, Zhangwei; Gao, Xing; Koff, R. A.; Masi, Gianluca; Nocentini, Francesca; Schmeer, Patrick; James, N.; Brimacombe, J.; Howell, D. A.; Sand, D.; Valenti, S.; Arcavi, I. (2013). "Supernova 2013fw in NGC 7042 = PSN J21134481+1334335". Central Bureau Electronic Telegrams (3681): 1. Bibcode:2013CBET.3681....1J.
  7. "SN 2013fw". Transient Name Server. IAU. Retrieved 9 May 2026.
  8. Masi, Gianluca (2013-10-26). "Supernova SN 2013fw (ex PSN J21134481+1334335) in NGC 7042: image and spectroscopy (23/25 Oct. 2013)". The Virtual Telescope Project 2.0. Retrieved 2017-06-26.
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