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NGC 4246

Coordinates:Sky map12h 17m 58.1131s, +07° 11′ 09.376″
From Wikipedia, the free encyclopedia
Galaxy in the constellation Virgo

NGC 4246
Spiral galaxy NGC 4246
Observation data (J2000epoch)
ConstellationVirgo
Right ascension12h 17m 58.1131s[1]
Declination+07° 11′ 09.376″[1]
Redshift0.012405[1]
Heliocentric radial velocity3719 ± 2 km/s[1]
Distance172.01 ± 10.57 Mly (52.74 ± 3.241 Mpc)[1]
Apparent magnitude (V)12.7[1]
Characteristics
TypeSA(s)c[1]
Size~133,600 ly (40.97 kpc) (estimated)[1]
Apparent size (V)2.3′ × 1.2′[1]
Other designations
HOLM 359B,2MASX J12175811+0711091,IC 3113,UGC 7334,MCG +01-31-041,PGC 39479,CGCG 041-070[1]

NGC 4246 is an unbarredspiral galaxy in theconstellation ofVirgo. Its velocity with respect to thecosmic microwave background is 4064 ± 24 km/s, which corresponds to aHubble distance of 195.5 ± 13.7 Mly (59.94 ± 4.21 Mpc).[1] However, 20non-redshift measurements give a distance of 172.01 ± 10.57 Mly (52.740 ± 3.241 Mpc).[2] It was discovered byGerman-British astronomerWilliam Herschel on 13 April 1784.[3] It was also observed by German astronomerArnold Schwassmann on 30 October 1899 and listed in theIndex Catalogue as IC 3113.[3]

According to theSIMBAD database, NGC 4246 is aLINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[4]

NGC 4246 along withNGC 4235 andNGC 4247 are listed together asHolm 359 inErik Holmberg'sA Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[5]

Supernovae

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Twosupernovae have been observed in NGC 4273:

See also

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References

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  1. ^abcdefghijk"Results for object NGC 4246".NASA/IPAC Extragalactic Database.NASA andCaltech. Retrieved22 November 2024.
  2. ^"Distance Results for NGC 4246".NASA/IPAC EXTRAGALACTIC DATABASE.NASA. Retrieved22 November 2024.
  3. ^abSeligman, Courtney."New General Catalogue Objects: NGC 4246".Celestial Atlas. Retrieved22 November 2024.
  4. ^"NGC 4246".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved22 November 2024.
  5. ^Holmberg, Erik (1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems".Annals of the Observatory of Lund.6: 1.Bibcode:1937AnLun...6....1H.
  6. ^Kowal, C.; Huchra, J.; Sargent, W. L. W. (1976)."The 1975 Palomar supernova search".Publications of the Astronomical Society of the Pacific.88: 521.Bibcode:1976PASP...88..521K.doi:10.1086/129978.
  7. ^"SN 1975C".Transient Name Server.IAU. Retrieved22 November 2024.
  8. ^Maza, J.; Gonzalez, L. E. (1984). "Possible Supernova in NGC 4246".International Astronomical Union Circular (3921): 1.Bibcode:1984IAUC.3921....1M.
  9. ^"SN 1984U".Transient Name Server.IAU. Retrieved22 November 2024.

External links

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