NGC 2930
Galaxy in the constellation Leo
From Wikipedia, the free encyclopedia
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]
| 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] |
| Heliocentric 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, CGCG 122-035[1] | |
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, NGC 2931, and LEDA 90930.[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]
