Astronomy:NGC 7101
From HandWiki
| 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] |
| Helio 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 | |
| MCG+01-55-007, PGC 67118[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
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
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 7101". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+7101.
- ↑ 2.0 2.1 Seligman, Courtney. "New General Catalogue Objects: NGC 7101". https://cseligman.com/text/atlas/ngc71.htm#7101.
- ↑ "NGC 7100". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+7100.
- ↑ "SN 2018enb". IAU. https://www.wis-tns.org/object/2018enb.
- ↑ "SN 2025upj". IAU. https://www.wis-tns.org/object/2025upj.
External links
- NGC 7101 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
21h 39m 34.6127s, +08° 52′ 36.832″
Template:NGC objects: 7001-7840
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