NGC 4731
| NGC 4731 | |
|---|---|
.jpg) NGC 4731 (Hubble) | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 51m 01.095s[1] |
| Declination | −06° 23′ 34.98″[1] |
| Heliocentric radial velocity | 1488.6 km/s[1] |
| Distance | 43 Mly |
| Apparent magnitude (B) | 12[1] |
| Characteristics | |
| Type | SBc |
| Other designations | |
| UGCA 302, MCG -01-33-026, PGC 43507[1] | |
NGC 4731 is a barred spiral galaxy located near the Virgo Supercluster. To its celestial south lies NGC 4731A, a small irregular galaxy.[2] Both galaxies feature high concentrations of neutral HI gas.[3] It is theorized that its elongated arm structure could be related to gravitational interactions with a nearby galaxy, NGC 4967. It is a member of the NGC 4697 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[4]
On 2 April 1950 (the April 1950 lunar eclipse) it was occulted by the Moon during a Total Lunar Eclipse over Europe except the N and NE, Africa, Madagascar and the Indian Ocean. It happened again under those same conditions during the April 1996 lunar eclipse over the North Atlantic, Europe, N and NE Africa and Southwest Asia. It will next happen on 4 April 2080 over NE Siberia, NW North America, and the Pacific Ocean including Hawaii.[5]: 160
Gallery
[edit]
NGC 4731 with legacy surveys
See also
[edit]References
[edit]- 1 2 3 4 5 "NGC 4731". SIMBAD. Centre de données astronomiques de Strasbourg.
- ↑ Nemiroff, R.; Bonnell, J., eds. (2010-04-29). "Virgo Cluster Galaxy NGC 4731". Astronomy Picture of the Day. NASA. Retrieved 2022-11-06.
- ↑ Gottesman, S. T.; Ball, R.; Hunter, J. H.; Huntley, J. M. (1984). "High-resolution observations of the HI content of the barred spiral galaxies NGC 3992 and NGC 4731". The Astrophysical Journal. 286: 471. Bibcode:1984ApJ...286..471G. doi:10.1086/162622.
- ↑ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
- ↑ Meeus, Jan (2002). "Occultations of deep-sky objects during a total lunar eclipse". More Mathematical Astronomy Morsels (PDF). pp. 157–162. ISBN 0943396743.