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NGC 2090

Coordinates: Sky map 05h 47m 01.8982s, −34° 15′ 00.806″
From Wikipedia, the free encyclopedia
NGC 2090
NGC 2090 captured by the Hubble Space Telescope in 2015.
Observation data (J2000 epoch)
ConstellationColumba
Right ascension05h 47m 01.8982s[1]
Declination−34° 15′ 00.806″[2]
Redshift0.003075[2]
Heliocentric radial velocity922 ± 1 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]
Size~111,200 ly (34.08 kpc) (estimated)[2]
Apparent size (V)4.9 × 2.4[3]
Other designations
ESO 363- G 023, IRAS 05452-3416, MCG -06-13-009, PGC 17819[4]

NGC 2090 is a spiral galaxy located in the constellation Columba. Its velocity with respect to the cosmic microwave background is 994 ± 5 km/s, which corresponds to a Hubble distance of 47.8 ± 3.4 Mly (14.65 ± 1.03 Mpc).[2] However, 51 non-redshift measurements give a distance of 42.46 ± 0.64 Mly (13.018 ± 0.197 Mpc).[5] It was discovered on 29 October 1826 by Scottish astronomer James Dunlop.[6] NGC 2090 was studied to refine the Hubble constant to an accuracy within ±10%.[1]

See also

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References

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  1. ^ a b c Phelps, Randy L.; Sakai, Shoko; Freedman, Wendy L.; Madore, Barry F.; Saha, Abhijit; Stetson, Peter B.; Kennicutt, Robert C.; Mould, Jeremy R.; Ferrarese, Laura; Ford, Holland C.; Gibson, Brad K.; Graham, John A.; Han, Mingsheng; Hoessel, John G.; Huchra, John P.; Hughes, Shaun M.; Illingworth, Garth D.; Silbermann, N. A. (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. Bibcode:1998ApJ...500..763P. doi:10.1086/305766.
  2. ^ a b c d e "Results for object NGC 2090". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 21 November 2024.
  3. ^ a b c d Gil de Paz, Armando; et al. (December 2007). "The GALEX Ultraviolet Atlas of Nearby Galaxies". The Astrophysical Journal Supplement Series. 173 (2): 185–255. arXiv:astro-ph/0606440. Bibcode:2007ApJS..173..185G. doi:10.1086/516636. S2CID 119085482.
  4. ^ "NGC 2090". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-25.
  5. ^ "Distance Results for NGC 2090". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 21 November 2024.
  6. ^ "New General Catalog Objects: NGC 2050 - 2099". cseligman.com. Retrieved 2017-12-14.
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