NGC 7101
| NGC 7101 | |
|---|---|
 NGC 7101 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 21h 39m 34.6127s[1] |
| Declination | +08° 52′ 36.832″[1] |
| Redshift | 0.028410±0.000100[1] |
| Heliocentric radial velocity | 8,517±30 km/s[1] |
| Distance | 393.3 ± 27.6 Mly (120.58 ± 8.47 Mpc)[1] |
| Apparent magnitude (V) | 14.7[1] |
| Characteristics | |
| Type | cE[1] |
| Size | ~135,300 ly (41.48 kpc) (estimated)[1] |
| Apparent size (V) | 0.6′ × 0.6′[1] |
| Other designations | |
| 2MASX J21393460+0852366, MCG +01-55-007, PGC 67118, CGCG 402-012[1] | |
NGC 7101 is a compact elliptical galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 8,176±38 km/s, which corresponds to a Hubble distance of 393.3 ± 27.6 Mly (120.58 ± 8.47 Mpc).[1] It was discovered by German astronomer Albert Marth on 3 August 1864.[2]
Austrian astronomer Rudolf Ferdinand Spitaler also observed this galaxy, but he thought that it was NGC 7100, which is a star in the Milky Way.[2] This error has been reproduced in some databases, such as SIMBAD.[3]
Supernovae
[edit]Two supernovae have been observed in NGC 7101:
- SN 2018enb (Type Ia, mag. 16.7) was discovered by Kōichi Itagaki on 2 August 2018.[4]
- SN 2025upj (Type Ia, mag. 17.858) was discovered by ATLAS on 13 August 2025.[5]
See also
[edit]References
[edit]- 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 7101". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 9 August 2026.
- 1 2 Seligman, Courtney. "New General Catalogue Objects: NGC 7101". Celestial Atlas. Retrieved 9 August 2026.
- ↑ "NGC 7100". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 August 2026.
- ↑ "SN 2018enb". Transient Name Server. IAU. Retrieved 9 August 2026.
- ↑ "SN 2025upj". Transient Name Server. IAU. Retrieved 9 August 2026.
External links
[edit]
Media related to NGC 7101 at Wikimedia Commons- NGC 7101 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
| Morphology | |
|---|---|
| Structure | |
| Active nuclei | |
| Energetic galaxies | |
| Low activity | |
| Interaction | |
| Lists | |
| Related |
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