NGC 6925

NGC 6925
NGC 6925 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationMicroscopium
Right ascension20h 34m 20.5638s
Declination−31° 58′ 50.965″
Redshift0.009303±0.00000500
Heliocentric radial velocity2,789±1 km/s
Distance92.94 ± 2.66 ± 13.57 Mly (28.497 ± 0.817 ± 4.162 Mpc)
Group or clusterNGC 6925 group (LGG 437)
Apparent magnitude (V)11.3
Apparent magnitude (B)12.09
Characteristics
TypeSA(s)bc
Size~163,600 ly (50.16 kpc) (estimated)
Apparent size (V)3.100′ × 1.116′
Other designations
ESO 463- G 004, IRAS 20312-3209, 2MASX J20342056-3158512, IC 5015, MCG -05-48-022, PGC 64980

NGC 6925 is an unbarred spiral galaxy in the constellation Microscopium. Its velocity with respect to the cosmic microwave background is 2,572±15 km/s, which corresponds to a Hubble distance of 123.7 ± 8.7 Mly (37.93 ± 2.66 Mpc). However, 34 non-redshift measurements give a much closer mean distance of 92.94 ± 2.66 Mly (28.497 ± 0.817 Mpc). It was discovered by British astronomer John Herschel on 31 July 1834.

NGC 6925 is lens-shaped, as it lies almost edge on to observers on Earth. It lies 3.7 degrees west-northwest of Alpha Microscopii.

NGC 6925 group

NGC 6925 is the main galaxy in a group of galaxies that bears its name. The NGC 6925 group (also known as LGG 437) has at least four galaxies, including NGC 6923 [fr], IC 5020 [fr] and ESO 462-31 [d].

Supernova

One supernova has been observed in NGC 6925. SN 2011ei (Type IIb, mag. 18) was discovered by Stuart Parker in New Zealand on 25 July 2011.

References

  1. 1 2 3 4 5 6 7 8 9 "NED results for object NGC 6925". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 13 February 2017.
  2. 1 2 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.
  3. 1 2 3 "NGC 6925". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 March 2015.
  4. ↑ "Distance Results for NGC 6925". NASA/IPAC Extragalactic Database. NASA. Retrieved 18 August 2026.
  5. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 6925". Celestial Atlas. Retrieved 18 August 2026.
  6. ↑ Bakich, Michael E. (2010). 1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers. Patrick Moore's Practical Astronomy Series. Springer. p. 289. ISBN 978-1-4419-1776-8.
  7. ↑ "LGG 437". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 18 August 2026.
  8. ↑ Marples, P.; Parker, S.; Stritzinger, M.; Drescher, C.; Bock, G. (2011). "Supernova 2011ei in NGC 6925 = PSN J20342262-3158236". Central Bureau Electronic Telegrams (2777): 1. Bibcode:2011CBET.2777....1M.
  9. ↑ "SN 2011ei". Transient Name Server. IAU. Retrieved 10 December 2025.
  10. ↑ Bishop, David. "Supernova 2011ei in NGC 6925". Rochester Astronomy. Archived from the original on 20 June 2015. Retrieved 20 June 2015.