NGC 34

NGC 34

NGC 34
Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Cetus
Right ascension 00h 11m 06.5s[1]
Declination −12° 06′ 26″[1]
Redshift 0.019617[1]
Helio radial velocity 5,881 ± 2 km/s[1]
Apparent magnitude (V) 15.3[1]
Characteristics
Type Sc[1]
Apparent size (V) 2′.2 × 0′.8[1]
Other designations
NGC 17,[1] PGC 781[1]

NGC 34 is a spiral galaxy in the constellation Cetus.

NGC 34 is the result of a merger between two disk galaxies, resulting in a recent starburst in the central regions and continuing starforming activity. The galaxy is still gas-rich, and has a single galactic nucleus. It lies 250 million light years away.

Arp 148, VV 340, Arp 256, NGC 6670, NGC 6240, ESO 593-8, NGC 454, UGC 8335, NGC 6786, NGC 34, ESO 77-14, NGC 6050
The central regions of NGC 34 have a spiral structure.

Due to the major merger event NGC 34 has no defined spiral arms like the Milky Way galaxy. Unlike the Milky Way, the center bar nucleus is also distorted.[2] The merger destroyed any galactic habitable zone that may have been there before the merger.[3] [4] For the Milky Way, the galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs and an inner radius close to the Galactic Center, both of which lack hard boundaries.[3]


References

  1. 1 2 3 4 5 6 7 8 9 "NASA/IPAC Extragalactic Database". Results for NGC 17. Retrieved 2006-12-07.
  2. ↑ Futurism, futurism.com, Astronomy Photo of the Day: 10/2/15 — NGC 34
  3. 1 2 Gowanlock, M. G.; Patton, D. R.; McConnell, S. M. (2011). "A Model of Habitability Within the Milky Way Galaxy". Astrobiology. 11 (9): 855–873. arXiv:1107.1286Freely accessible. Bibcode:2011AsBio..11..855G. doi:10.1089/ast.2010.0555. PMID 22059554.
  4. ↑ Choi, Charles Q. (21 August 2015). "Giant Galaxies May Be Better Cradles for Habitable Planets". Space.com. Retrieved 24 August 2015.

Coordinates: 00h 11m 06.5s, −12° 06′ 26″

This article is issued from Wikipedia - version of the 11/12/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.