Astronomy:NGC 1418
| NGC 1418 | |
|---|---|
 NGC 1418 imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Eridanus |
| Right ascension | 03h 42m 16.1773s[1] |
| Declination | −04° 43′ 51.406″[1] |
| Redshift | 0.014023±0.0000200[1] |
| Helio radial velocity | 4,204±6 km/s[1] |
| Distance | 213.91 ± 26.41 Mly (65.586 ± 8.097 Mpc)[2] |
| Group or cluster | NGC 1417 group (LGG 103)[3] |
| Apparent magnitude (V) | 14.21[1] |
| Characteristics | |
| Type | SB(s)b[1] |
| Size | ~100,800 ly (30.91 kpc) (estimated)[1] |
| Apparent size (V) | 1.3′ × 0.9′[1] |
| Other designations | |
| HOLM 70B, MCG-01-10-022, PGC 13606[1] | |
NGC 1418 is a barred spiral galaxy in the constellation of Eridanus. Its velocity with respect to the cosmic microwave background is 4,068±11 km/s, which corresponds to a Hubble distance of 195.7 ± 13.7 Mly (59.99 ± 4.20 Mpc).[1] However, seven non-redshift measurements give a farther mean distance of 213.91 ± 26.41 Mly (65.586 ± 8.097 Mpc).[2] It was discovered by German-British astronomer William Herschel on 5 October 1785.[4]
NGC 1418 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[5][6]
NGC 1417 group
NGC 1418 is a member of the NGC 1417 galaxy group (also known as LGG 103). This group contains at least 14 galaxies, including NGC 1358, NGC 1376, NGC 1417 (fr), NGC 1441 (fr), NGC 1449 (fr), NGC 1451 (fr), and NGC 1453 (fr).[3][7]
Supernovae
Three supernovae have been observed in NGC 1418:
- SN 2013gy (Type Ia, mag. 18) was discovered by the Lick Observatory Supernova Search (LOSS) on 6 December 2013.[8][9]
- SN 2026zyh (Type Ia, mag. 18.3483) was discovered by the Zwicky Transient Facility on 26 August 2026.[10]
- SN 2026aadx (Type II-P, mag. 19.39) was discovered by GOTO on 25 August 2026.[11]
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 1418". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+1418.
- ↑ 2.0 2.1 "Distance Results for NGC 1418". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+1418.
- ↑ 3.0 3.1 Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode: 1993A&AS..100...47G.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 1418". https://cseligman.com/text/atlas/ngc14.htm#1418.
- ↑ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D. et al. (2020). "Local AGN survey (LASr): I. Galaxy sample, infrared colour selection, and predictions for AGN within 100 MPC". Monthly Notices of the Royal Astronomical Society 494 (2): 1784. doi:10.1093/mnras/staa766. Bibcode: 2020MNRAS.494.1784A.
- ↑ "NGC 1418". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+1418.
- ↑ "LGG 103". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LGG+103.
- ↑ Kim, H.; Zheng, W.; Li, W. et al. (2013). "Supernova 2013gy in NGC 1418 = PSN J03421688-0443185". Central Bureau Electronic Telegrams (3743): 1. Bibcode: 2013CBET.3743....1K.
- ↑ "SN 2013gy". IAU. https://www.wis-tns.org/object/2013gy.
- ↑ "SN 2026zyh". IAU. https://www.wis-tns.org/object/2026zyh.
- ↑ "SN 2026aadx". IAU. https://www.wis-tns.org/object/2026aadx.
External links
- NGC 1418 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
03h 42m 16.1773s, −04° 43′ 51.406″
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