47 Ursae Majoris d

47 Ursae Majoris d
An artist's impression of 47 UMa d
Discovery
Discovered byGregory and Fischer
Discovery site United States
Discovery date6 March 2010
Doppler spectroscopy
(Bayesian Kepler periodogram)
Orbital characteristics
11.6+2.1
−2.9
[1] AU
Eccentricity0.16+0.09
−0.16
[1]
14,002+4018
−5095
[1] d
~38.33 y
2,451,736+6783
−5051
[1]
110+132
−160
[1]
Star47 Ursae Majoris

47 Ursae Majoris d (sometimes abbreviated 47 Uma d) is an extrasolar planet approximately 46 light-years away in the constellation of Ursa Major. The planet was discovered located in a long-period orbit (38 years) around the star 47 Ursae Majoris. As of 2011, it is the outermost of three known planets in its planetary system. It has a mass of at least 1.64 times that of Jupiter. It is the longest-period planet detected by Doppler spectroscopy. The evidence of this planet was found by Bayesian Kepler periodogram in March 2010.[1]

Orbits of the 47 Ursae Majoris system planets. 47 UMa d is the outermost planet.
  1. ^ a b c d e f Cite error: The named reference Gregory2010 was invoked but never defined (see the help page).