Astronomy:NGC 3625

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NGC 3625
NGC 3625 imaged by SDSS
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension 11h 20m 31.2936s[1]
Declination+57° 46′ 53.526″[1]
Redshift0.006484±0.00000900[1]
Helio radial velocity1,944±3 km/s[1]
Distance123.74 ± 5.12 Mly (37.940 ± 1.569 Mpc)[1]
Group or clusterNGC 3613 group (LGG 232)
Apparent magnitude (V)14.0g[1]
Characteristics
TypeSAB(s)b[1]
Size~75,600 ly (23.18 kpc) (estimated)[1]
Apparent size (V)1.73′ × 0.62′[1]
Other designations
IRAS F11176+5803, UGC 6348, MCG+10-16-120, PGC 34718[1]

NGC 3625 is an intermediate spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is 2,102±11 km/s, which corresponds to a Hubble distance of 101.1 ± 7.1 Mly (31.00 ± 2.18 Mpc).[1] However, five non-redshift measurements give a farther mean distance of 123.74 ± 5.12 Mly (37.940 ± 1.569 Mpc).[2] It was discovered by German-British astronomer William Herschel on 8 April 1793.[3][4]

NGC 3625 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[5][6]

NGC 3613 group

According to A.M. Garcia, NGC 3625 is a member of the NGC 3613 group (also known as LGG 232). The other galaxies in the group are NGC 3613, NGC 3669, and UGC 6344.[7][8]

Supernova

One supernova has been observed in NGC 3625:

  • SN 1983W (Type Ia, mag. 16.5) was discovered by Thomas Schildknecht (de) on 6 December 1983.[9][10][11]

See also

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 3625". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+3625. 
  2. ↑ "Distance Results for NGC 3625". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+3625. 
  3. ↑ Herschel, William (1802). "Catalogue of 500 New Nebulae, Nebulous Stars, Planetary Nebulae, and Clusters of Stars; with Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London 92: 477–528. doi:10.1098/rstl.1802.0021. Bibcode: 1802RSPT...92..477H. 
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3625". https://cseligman.com/text/atlas/ngc36.htm#3625. 
  5. ↑ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D. et al. (2020). "Local AGN survey (LASr): I. Galaxy sample, infrared colour selection, and predictions for AGN within 100 MPC". Monthly Notices of the Royal Astronomical Society 494 (2): 1784. doi:10.1093/mnras/staa766. Bibcode: 2020MNRAS.494.1784A. 
  6. ↑ "NGC 3625". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3625. 
  7. ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode: 1993A&AS..100...47G. 
  8. ↑ "LGG 232". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LGG+232. 
  9. ↑ Wild, P.; Schildknecht, T. (1983). "Supernova in NGC 3625". International Astronomical Union Circular (3900): 1. Bibcode: 1983IAUC.3900....1W. http://www.cbat.eps.harvard.edu/iauc/03900/03900.html#Item1. 
  10. ↑ Tsvetkov, D. Y. (1988). "Observations of Supernovae 1983R 1983U and 1983W". Soviet Astronomy 32: 72. Bibcode: 1988SvA....32...72T. 
  11. ↑ "SN 1983W". IAU. https://www.wis-tns.org/object/1983W. 

Coordinates: Sky map 11h 20m 31.2936s, +57° 46′ 53.526″



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