NGC 6872 and IC 4970

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NGC 6872 and IC 4970
Phot-20b-99-hires.jpg
Observation data (J2000 epoch)
Constellation Pavo
Right ascension 20h 16m 56.5s / 20h 16m 27.3s[1]
Declination −70° 46′ 05″ / −70° 44′ 59″[1]
Redshift 4,555 ± 30km/s /
4,715 ± 44km/s[1]
Distance 212 Mly (65 Mpc)[2]
Type SB(s)b pec / SA0- pec:[1]
Apparent dimensions (V) 8.5′ × 2.0′ /
0.7′x 0.2′[1]
Apparent magnitude (V) 12.69 / 14.70[1]
Notable features Interacting galaxies
Other designations
ESO 073-IG 032 / 073-IG 033
PGC 64413 / 64415
See also: Galaxy, List of galaxies

NGC 6872 (also known as the Condor Galaxy) and IC 4970 are two interacting galaxies located over 212 million light-years away in the constellation Pavo.

On March 29, 1999, the European Southern Observatory (ESO) took a look at these galaxies. It shows the spectacular barred spiral galaxy NGC 6872 that is (contrary to earlier statements) not shaped like an integral symbol ∫; but more like a section sign §. It is of type SB(s)b pec, and is accompanied by IC 4970, a smaller interacting galaxy of type SA0- pec:.[1] One of the NGC 6872 spiral arms is significantly disturbed and is populated by a plethora of bluish objects, many of which are star-forming regions. This may have been caused by a recent passage of IC 4970 through it.

NGC 6872[edit]

NGC 6872's UV disk extends over more than 8 arcmin in the sky.[1] Its real size from tip to tip is 522,000 light years, making it the largest-known spiral galaxy.[2] [3]

Gallery[edit]

Other interacting galaxies[edit]

References[edit]

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". caltech.edu. Retrieved August 23, 2013. 
  2. ^ a b "NASA's Galex Reveals the Largest-Known Spiral Galaxy". Jet Propulsion Laboratory. January 10, 2013. Retrieved August 23, 2013. 
  3. ^ "Star Formation Histories Across the Interacting Galaxy NGC 6872, the Largest-Known Spiral". arXiv. September 10, 2014. Retrieved September 16, 2014. 
  4. ^ "An interacting colossus". www.spacetelescope.org. ESA/Hubble. Retrieved 16 September 2014. 

External links[edit]