Magnitude 8.65 Apparent magnitude (V) 8.65 | ||
People also search for HD 41004 Ab, HD 196885, AB Pictoris | ||
HD 41004 is a star system approximately 139 light years away in the constellation of Pictor.
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HD 41004 A
HD 41004 A is a primary orange dwarf star of spectral type K1V and apparent magnitude 8.65.
Planetary system
In 2003 a planet HD 41004 Ab was first discovered by Zucker, but not published until 2004. It has a mass >2.56 times that of Jupiter. It orbits at 1.70 astronomical units, taking 963 days, with 74% eccentricity.
HD 41004 B
HD 41004 B is a red dwarf with spectral type M2V and apparent magnitude 12.33.
Brown dwarf
HD 41004 Bb is a brown dwarf that at the time of the discovery was orbiting closer to the star than any known extrasolar planet or brown dwarf (a=0.0177 AU), at only 145 km/s, because of its low-mass parent star, taking 1.3 days. Its orbit is circular despite the gravitational effect of HD 41004 A because of the tidal effect of the nearby star HD 41004 B.