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NGC 958

Coordinates:Sky map02h 30m 42.8350s, −02° 56′ 20.126″
From Wikipedia, the free encyclopedia
Galaxy in the constellation Cetus

NGC 958
NGC 958 imaged bySDSS
Observation data (J2000epoch)
ConstellationCetus
Right ascension02h 30m 42.8350s[1]
Declination−02° 56′ 20.126″[1]
Redshift0.019150[1]
Heliocentric radial velocity5741 ± 2 km/s[1]
Distance264.8 ± 18.6 Mly (81.20 ± 5.69 Mpc)[1]
Apparent magnitude (V)12.2[1]
Characteristics
TypeSB(rs)c?[1]
Size~161,200 ly (49.43 kpc) (estimated)[1]
Apparent size (V)2.9′ × 0.9′[1]
Other designations
IRAS 02281-0309,2MASX J02304283-0256204,MCG -01-07-019,PGC 9560[1]

NGC 958 is abarred spiral galaxy in theconstellation ofCetus. Its velocity with respect to thecosmic microwave background is 5505 ± 17 km/s, which corresponds to aHubble distance of 81.20 ± 5.69Mpc (~265 millionlight-years).[1] However, 19non-redshift measurements give a closer distance of 58.93 ± 12.91 Mpc (~192 million light-years).[2] The galaxy was discovered by German-British astronomerWilliam Herschel on 20 September 1784.[3]

TheSIMBAD database lists NGC 958 as aSeyfert II Galaxy, i.e. it has aquasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4] TheNASA/IPAC Extragalactic Database (NED) lists NGC 958 as aluminous infrared galaxy (LIRG).[1]

Supernovae

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Threesupernovae have been observed in NGC 958:

See also

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References

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  1. ^abcdefghijkl"Results for object NGC 958".NASA/IPAC Extragalactic Database.NASA andCaltech. Retrieved10 August 2024.
  2. ^"Distance Results for NGC 958".NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved10 August 2024.
  3. ^Seligman, Courtney."NGC 958".Celestial Atlas. Retrieved10 August 2024.
  4. ^"NGC 958".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved16 December 2024.
  5. ^Graham, J.; Li, W. (2005)."Supernova 2005A in NGC 958".International Astronomical Union Circular (8459): 3.Bibcode:2005IAUC.8459....3G.
  6. ^"SN 2005A".Transient Name Server.IAU. Retrieved16 December 2024.
  7. ^"SN 2022ao".Transient Name Server.IAU. Retrieved16 December 2024.
  8. ^"SN 2022acbu".Transient Name Server.IAU. Retrieved16 December 2024.

External links

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