Astronomy:NGC 1706
| NGC 1706 | |
|---|---|
.jpg) NGC 1706 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Dorado |
| Right ascension | 04h 52m 31.0284s[1] |
| Declination | −62° 59′ 08.398″[1] |
| Redshift | 0.016308±0.0000870[1] |
| Helio radial velocity | 4,889±26 km/s[1] |
| Distance | 236.4 ± 16.6 Mly (72.49 ± 5.10 Mpc)[1] |
| Group or cluster | ESO 85-38 Group (LGG 125)[2] |
| Apparent magnitude (V) | 13.53[1] |
| Characteristics | |
| Type | SA(rs)ab[1] |
| Size | ~165,400 ly (50.72 kpc) (estimated)[1] |
| Apparent size (V) | 1.4′ × 1.0′[1] |
| Other designations | |
| ESO 085- G 007, PGC 16220[1] | |
NGC 1706 is a large spiral galaxy in the constellation of Dorado. Its velocity with respect to the cosmic microwave background is 4,915±26 km/s, which corresponds to a Hubble distance of 236.4 ± 16.6 Mly (72.49 ± 5.10 Mpc).[1] It was discovered by British astronomer John Herschel on 25 December 1837.[3]
NGC 1706 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.[4][5]
ESO 85-38 Group
NGC 1706 is a member of the ESO 85-38 Group (also known as LGG 125). The other two galaxies in the group are NGC 1771 (fr) and ESO 85-38 (de).[2][6]
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 1706". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+1706.
- ↑ 2.0 2.1 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 1706". https://cseligman.com/text/atlas/ngc17.htm#1706.
- ↑ 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 1706". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+1706.
- ↑ "LGG 125". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LGG+125.
External links
- NGC 1706 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
04h 52m 31.0284s, −62° 59′ 08.398″
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