NGC 7007

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NGC 7007
NGC 7007 legacy dr10.jpg
Lenticular galaxy NGC 7007.
Observation data (J2000 epoch)
Constellation Indus
Right ascension 21h 05m 27.9s [1]
Declination −52° 33′ 07″ [1]
Redshift 0.010334 [1]
Heliocentric radial velocity 3098 km/s [1]
Distance 131,132,400 Mly
Apparent magnitude  (V)12.94 [1]
Characteristics
Type SA0 [1]
Apparent size  (V)1.9 × 1.1 [1]
Other designations
ESO 187-48, PGC 66069 [1]

NGC 7007 is a lenticular galaxy [2] around 130 million light-years away from Earth in the constellation Indus. [3] [2] It was discovered by astronomer John Herschel on July 8, 1834. [4]

Contents

Counter-rotating disk

In NGC 7007, there is counter-rotating disk of ionized gas that counter-rotates with respect to the stars. This indicates an external origin of the gas such as accretion. [5]

See also

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References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 7007. Retrieved 2017-04-23.
  2. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-04-23.
  3. ↑ Rojas, Sebastián García. "Galaxy NGC 7007 Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-05-20. Retrieved 2017-04-23.
  4. ↑ "New General Catalog Objects: NGC 7000 - 7049". cseligman.com. Retrieved 2017-04-15.
  5. ↑ Dettmar, Ralf-Juergen; Jullien-Dettmar, Marlies; Barteldrees, Andreas (1 July 1990). "Observations of extended and counterrotating disks of ionized gas in SO galaxies*" (PDF). Nasa, Ames Research Center, the Interstellar Medium in External Galaxies: Summaries of Contributed Papers.


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