Wiki Article

NGC 7042

Nguồn dữ liệu từ Wikipedia, hiển thị bởi DefZone.Net

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]

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]

Supernova

[edit]

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

[edit]
  1. ^ a b c d e f g h i "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.
[edit]