NGC 1706

NGC 1706
NGC 1706 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Dorado
Right ascension	04^h 52^m 31.0284^s^[1]
Declination	−62° 59′ 08.398″^[1]
Redshift	0.016308±0.0000870^[1]
Heliocentric 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, 2MASX J04523101-6259089, 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

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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]

References

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1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 1706". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 3 August 2026.
1 2 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". Celestial Atlas. Retrieved 3 August 2026.
↑ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D.; Davies, R. I.; Hönig, S. F.; Ricci, C.; Rosario, D. J.; Salvato, M.; Shankar, F.; Stern, D. (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. arXiv:2003.05959. Bibcode:2020MNRAS.494.1784A. doi:10.1093/mnras/staa766.
↑ "NGC 1706". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 August 2026.
↑ "LGG 125". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 August 2026.

External links

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Media related to NGC 1706 at Wikimedia Commons
NGC 1706 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Constellation of Dorado

Stars

Bayer	α β γ δ ε ζ η¹ η² θ κ λ ν π¹ π²
Variable	R (P) S WZ AB BB
HR	1859 1917 (G) 2102
HD	27274 28254 30177 32034 33579 37836 37974 38029 38282 269810 271182
Other	B90 BAT99-7 BAT99-66 BAT99-68 BAT99-98 BAT99-104 BAT99-123 BI 253 Gliese 163 HE 0437−5439 HV 888 IRAS 05280−6910 LHA 120-S 79 LH 41-1042 LH 54-425 LMC195-1 LMC X-1 LMC X-3 LMC X-4 MACHO*05:34:41.3−69:31:39 MACHO 80.7443.1718 Melnick 34 Melnick 42 PSR J0523−7125 PSR J0537−6910 PSR J0540−6919 R85 R99 R136 a a1 a2 a3 b c R145 RX J0439.8−6809 SGR 0525−66 TOI-700 TOI-813 VFTS 102 VFTS 243 VFTS 352 VFTS 682 WASP-62 (Naledi) WOH G64

Exoplanets	Gliese 163 c HD 28254 b HD 30177 b TOI-700 d e TOI-813 b TOI-4127 b

Star
clusters

NGC	1712 1755 1761 1763 1783 1786 1806 1818 1820 1846 1847 1850 1852 1854 1856 1858 1859 1860 1866 1868 1869 1871 1872 1873 1898 1901 1903 1910 1929 1935 1955 1969 1971 1974 1978 1983 1984 1994 1997 2001 2002 2003 2004 2005 2009 2011 2027 2040 2041 2070 2074 2100 2108 2164 2197 2210 2241 2257
Other	Hodge 301 LH 95

Nebulae

NGC	1714 1934 1936 1970 2014 2020 2029 2032 2035 2060 2078 2080 2081
Other	Henize 70 Honeycomb Nebula N11 N41 N44 N49 N55 N79 N119 SNR 0509−67.5 SNR 0519−69.0 Tarantula Nebula (30)

Galaxies

NGC	1515 1533 1546 1549 1553 1566 1578 1581 1596 1602 1617 1672 1703 1706 1892 1947 2082
Other	IC 2082 Large Magellanic Cloud (partly in Mensa and Hydrus) LEDA 89996

Galaxy clusters	Dorado Group

Astronomical events	GRB 790305b SN 1987A Sanduleak −69 202

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ESO 85-38 Group

See also

References

External links