NGC 1407

NGC 1407 is an elliptical galaxy in Eridanus. It is at a distance of 76 million light-years from Earth. It is the brightest galaxy in the NGC 1407 Group, part of the Eridanus Group, with NGC 1407 being its brightest member.^[2] NGC 1400, the second-brightest of the group lies 11.8 arcmin away.

NGC 1407
NGC 1407 by Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Eridanus
Right ascension	03h 40m 11.9s[1]
Declination	−18° 34′ 48″[1]
Redshift	1,779 ± 9 km/s[1]
Distance	76 Mly (23.3 Mpc)[1]
Apparent magnitude (V)	9.7
Characteristics
Type	E0[1]
Apparent size (V)	4′.6 × 4′.3[1]
Other designations
ESO 548- G 067, PGC 13505[1]

NGC 1407 is X-ray luminous, with high hot gas Fe abundance,^[3] and with evidence of recurrent radio outbursts.^[4] In the central area of the galaxy are present old stars, with mean age 12.0 ± 1.1 Gyrs, that are metal rich and with supersolar abundances of α-elements. Observations indicate that NGC 1407 hasn't recently undergone strong star-formation activity.^[5] The galaxy hosts a supermassive black hole with a mass 1.12 ± 0.42 billion solar masses, based on velocity dispersion.^[6]

The galaxy was discovered by 6 October 1785 by William Herschel.^[7]

Gallery

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  DSS image of NGC 1407
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  Pan-STARRS image of NGC 1407
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  NGC 1407 group with the legacy surveys