Astronomy:NGC 2930
| NGC 2930 | |
|---|---|
 NGC 2930 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Leo (constellation) |
| Right ascension | 09h 37m 32.7600s[1] |
| Declination | +23° 12′ 10.000″[1] |
| Redshift | 0.024624±0.0000470[1] |
| Helio radial velocity | 7,382±14 km/s[1] |
| Distance | 314.44 ± 19.25 Mly (96.408 ± 5.901 Mpc)[2] |
| Group or cluster | [T2015] nest 101363[3][4] |
| Apparent magnitude (V) | 15.10[1] |
| Characteristics | |
| Type | S[1] |
| Size | ~60,400 ly (18.51 kpc) (estimated)[1] |
| Apparent size (V) | 0.7′ × 0.4′[1] |
| Other designations | |
| HOLM 134A, IRAS F09346+2326, MCG+04-23-018, PGC 27404[1] | |
NGC 2930 is a spiral galaxy in the constellation of Leo. Its velocity with respect to the cosmic microwave background is 7,674±25 km/s, which corresponds to a Hubble distance of 369.2 ± 25.9 Mly (113.19 ± 7.93 Mpc).[1] However, 12 non-redshift measurements give a closer mean distance of 314.44 ± 19.25 Mly (96.408 ± 5.901 Mpc).[2] It was discovered by German astronomer Heinrich Louis d'Arrest on 21 February 1863.[5]
Galaxy groups
NGC 2930 is a member of a galaxy group known as Nest 101363. This group contains 5 galaxies, including NGC 2927, NGC 2929 (fr), NGC 2931 (fr), and LEDA 90930 (d).[3][4] Additionally, NGC 2929, NGC 2930, and NGC 2931 are listed together as Holm 134 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[6]
Supernovae
Two supernovae have been observed in NGC 2930:
- SN 2005M (Type Ia, mag. 18.8) was discovered by Tim Puckett and D. George on 19 January 2005.[7][8]
- SN 2026iql (Type II, mag. 20.8868) was discovered by the Zwicky Transient Facility on 5 April 2026.[9]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 "Results for object NGC 2930". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+2930.
- ↑ 2.0 2.1 "Distance Results for NGC 2930". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+2930.
- ↑ 3.0 3.1 Tully, R. Brent (2015). "Galaxy Groups: A 2MASS Catalog". The Astronomical Journal 149 (5): 171. doi:10.1088/0004-6256/149/5/171. Bibcode: 2015AJ....149..171T.
- ↑ 4.0 4.1 "[T2015 nest 101363"]. SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=%5BT2015%5D+nest+101363.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 2930". https://cseligman.com/text/atlas/ngc29.htm#2930.
- ↑ Holmberg, Erik (1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems". Annals of the Observatory of Lund 6: 1. Bibcode: 1937AnLun...6....1H.
- ↑ Puckett, T.; George, D.; Graham, J.; Li, W. (2005). "Supernovae 2005M and 2005N". International Astronomical Union Circular (8470): 1. Bibcode: 2005IAUC.8470....1P. http://www.cbat.eps.harvard.edu/iauc/08400/08470.html#Item1.
- ↑ "SN 2005M". IAU. https://www.wis-tns.org/object/2005M.
- ↑ "SN 2026iql". IAU. https://www.wis-tns.org/object/2026iql.
External links
- NGC 2930 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
09h 37m 32.7600s, +23° 12′ 10.000″
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