| 词条 | 47 Ursae Majoris d |
| 释义 |
| name = 47 Ursae Majoris d | discoverer = Gregory and Fischer | discovery_site = {{flag|United States}} | discovered = 6 March 2010 | discovery_method = Doppler spectroscopy (Bayesian Kepler periodogram) | apsis = astron | aphelion = 13.4{{±|3.7|4.7}} AU | perihelion = 9.7{{±|4.1|3.2}} AU | semimajor = 11.6{{±|2.1|2.9}} AU | eccentricity = 0.16{{±|0.09|0.16}} | period = 14002{{±|4018|5095}} d ~38.33 y | avg_speed = 9.0{{±|7.8|3.7}} | time_periastron = 2,451,736{{±|6783|5051}} | arg_peri = 110{{±|132|160}} | star = 47 Ursae Majoris | single_temperature = 85 }}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.{{Clear}} See also{{Wikipedia books|47 Ursae Majoris}}
References}}
4 : 47 Ursae Majoris|Exoplanets discovered in 2010|Giant planets|Exoplanets detected by radial velocity |
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