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NGC 3981

Coordinates: Sky map 11h 56m 07.4552s, −19° 53′ 45.193″
From Wikipedia, the free encyclopedia
(Redirected from UGCA 255)
NGC 3981
NGC 3981 imaged by the DECam on the Víctor M. Blanco Telescope.[1]
Observation data (J2000[2] epoch)
ConstellationCrater
Right ascension11h 56m 07.4552s[3]
Declination−19° 53′ 45.193″[3]
Redshift0.005747±0.0000130[3]
Heliocentric radial velocity1,723±4 km/s[3]
Distance65 Mly (19.9 Mpc)[2]
Group or clusterNGC 4038 Group
Apparent magnitude (B)11.75[2]
Characteristics
TypeSA(rs)bc[3]
Size~269,200 ly (82.55 kpc)[3] (estimated)
Apparent size (V)5.2′ × 2.3′[3]
Other designations
ESO 572- G 020, Arp 289, UGCA 255, MCG -03-31-001, PGC 037496, VV 008[3]

NGC 3981 is a large unbarred spiral galaxy located in the constellation Crater.[4] Its velocity with respect to the cosmic microwave background is 2,078±25 km/s, which corresponds to a Hubble distance of 100.0 ± 7.1 Mly (30.65 ± 2.18 Mpc).[3] However, 14 non-redshift measurements give a closer mean distance of 67.54 ± 3.00 Mly (20.707 ± 0.920 Mpc).[5] It was discovered by German-British astronomer William Herschel on February 7, 1785.[6][7]

NGC 3981 is a member of the NGC 4038 Group[8][9][10][11] which is part of the Virgo Supercluster.[9][12]

See also

[edit]

References

[edit]
  1. ↑ "The Unfurling Spiral Arms of NGC 3981". NSF NOIRLab. Retrieved 4 July 2026.
  2. 1 2 3 "NGC 3981". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 4 July 2026.
  3. 1 2 3 4 5 6 7 8 9 "Results for object NGC 3981". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 4 July 2026.
  4. ↑ "A Galactic Gem - ESO's FORS2 instrument captures stunning details of spiral galaxy NGC 3981". www.eso.org. Retrieved 2026-06-04.
  5. ↑ "Distance Results for NGC 3981". NASA/IPAC Extragalactic Database. NASA. Retrieved 4 July 2026.
  6. ↑ Herschel, William (1786). "Catalogue of One Thousand New Nebulae and Clusters of Stars" (PDF). Philosophical Transactions of the Royal Society of London. 76: 457–499. Bibcode:1786RSPT...76..457H. doi:10.1098/rstl.1786.0027.
  7. ↑ "New General Catalog Objects: NGC 3950 - 3999". cseligman.com. Retrieved 2018-09-15.
  8. ↑ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4.
  9. 1 2 P., Fouque; E., Gourgoulhon; P., Chamaraux; G., Paturel (May 1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series. 93: 211. Bibcode:1992A&AS...93..211F. ISSN 0365-0138.
  10. ↑ M., Garcia, A. (July 1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  11. ↑ Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal. 543 (1): 178. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X. S2CID 9618325.
  12. ↑ Tully, R. B. (June 1982). "The Local Supercluster". The Astrophysical Journal. 257: 389–422. Bibcode:1982ApJ...257..389T. doi:10.1086/159999. ISSN 0004-637X.
[edit]
  • Wikimedia Commons logo Media related to NGC 3981 at Wikimedia Commons
  • NGC 3981 on SIMBAD
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