Astronomy:NGC 2090

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Short description: Spiral galaxy in the constellation Columba
NGC 2090
NGC 2090 hst 05446 0w 606.png
NGC 2090 captured by the Hubble Space Telescope in 2015.
Observation data (J2000 epoch)
ConstellationColumba
Right ascension 05h 48m 22.3s[1]
Declination−34° 13′ 37″[1]
Redshift0.003079[2]
Helio radial velocity921.5 km/s[2]
Distance40.1 ± 2.9 Mly (12.3 ± 0.9 Mpc)[1]
Apparent magnitude (V)11.20[3]
Apparent magnitude (B)11.99[3]
Characteristics
TypeSA:(rs)c[3]
Apparent size (V)4.9′ × 2.4′[3]
Other designations
MCG-06-13-009, PGC 17819[2]

NGC 2090 is a spiral galaxy located approximately 40 million light-years from the Solar System[1] in the Columba constellation. It was discovered on 29 October 1826 by Scottish astronomer James Dunlop.[4] NGC 2090 was studied to refine the Hubble constant to an accuracy within ±10%.[1]

See also

Gallery

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Phelps, Randy L.; Sakai, Shoko; Freedman, Wendy L.; Madore, Barry F.; Saha, Abhijit; Stetson, Peter B.; Kennicutt, Robert C.; Mould, Jeremy R. et al. (1998). "The Hubble Space Telescope Extragalactic Distance Scale Key Project. IX. The Discovery of Cepheids in NGC 2090". The Astrophysical Journal 500 (2): 763–788. doi:10.1086/305766. Bibcode: 1998ApJ...500..763P. 
  2. ↑ 2.0 2.1 2.2 "NGC 2090". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+2090. 
  3. ↑ 3.0 3.1 3.2 3.3 Gil de Paz, Armando et al. (December 2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". The Astrophysical Journal Supplement Series 173 (2): 185–255. doi:10.1086/516636. Bibcode: 2007ApJS..173..185G. 
  4. ↑ "New General Catalog Objects: NGC 2050 - 2099" (in en-US). http://cseligman.com/text/atlas/ngc20a.htm#2090. 

External links

Coordinates: Sky map 05h 48m 22.3s, −34° 13′ 37″




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