| NGC 4375 | |
|---|---|
 The barred spiral galaxy NGC 4375. | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12 25 00.4734 |
| Declination | +28° 33′ 30.952″ |
| Redshift | 0.030153 |
| Heliocentric radial velocity | 9040 ± 3 km/s |
| Distance | 448.6 ± 31.4 Mly (137.54 ± 9.63 Mpc) |
| Apparent magnitude (V) | 12.6 |
| Characteristics | |
| Type | SB(r)ab pec? |
| Size | ~148,000 ly (45.37 kpc) (estimated) |
| Apparent size (V) | 1.4' x 1.2' |
| Other designations | |
| IRAS 12224+2850, 2MASX J12250049+2833306, UGC 7496, MCG +05-29-080, PGC 40449, CGCG 158-100 | |
NGC 4375 is a barred spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is 9325 ± 20 km/s, which corresponds to a Hubble distance of 137.54 ± 9.63 Mpc (∼448 million light-years). However, four non-redshift measurements give a distance of 105.5 Mpc (~344 million light-years). The galaxy was discovered by German-British astronomer William Herschel on 11 April 1785.
The SIMBAD database lists NGC 4375 as a Seyfert II Galaxy, i.e. it has a quasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.
Supernovae
Two supernovae have been observed in NGC 4375:
- SN 1960J (type unknown, mag. 18.5) was discovered by Milton Humason on 18 June 1960.
- SN 2023vsr (type II, mag. 17.6) was discovered by the Zwicky Transient Facility on 24 October 2023.
See also
References
- ^ "NASA/IPAC Extragalactic Database". Results for NGC 4375. Retrieved 14 August 2024.
- "Distance Results for NGC 4375". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 14 August 2024.
- Seligman, Courtney. "NGC 4375". Celestial Atlas. Retrieved 14 August 2024.
- "NGC 4375". SIMBAD astronomical database. Strasbourg Astronomy Data Centre. Retrieved 14 August 2024.
- "SN 1960J". Transient Name Server. IAU. Retrieved 14 August 2024.
- Humason, M. L.; Gomes, Alercio M.; Kearns, C. E. (1961). "The 1960 Palomar Supernova Search". Publications of the Astronomical Society of the Pacific. 73 (432): 175. Bibcode:1961PASP...73..175H. doi:10.1086/127650.
- "SN 2023vsr". Transient Name Server. IAU. Retrieved 14 August 2024.
External links
Media related to NGC 4375 at Wikimedia Commons- NGC 4375 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
| New General Catalogue 4000 to 4499 | |
|---|---|
| |