The 47 UMa system contains 3 exoplanets. It is located 45.00 light years away from the solar system.
Mass | 1.06 solar masses |
Radius | 1.21 solar radiae |
Temperature | 5872 kelvin |
Stellar Metallicity | 0.04 decimal exponent |
Age | 6.48 billion years |
At more than 50 Earth masses, 47 UMa b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
Mass | 804.080 Earth masses |
Density | 1.920 grams per cubic centimeter |
Radius | 13.200 Earth radiae |
Semi-major Axis | 2.1 AU |
Eccentricity | 0.032 |
Orbital Period | 1078.000 days |
Discovery Method | Radial Velocity |
Discovery Facility | Lick Observatory |
Discovery Telescope | 3.0 m C. Donald Shane Telescope |
Discovery Instrument | Hamilton Echelle Spectrograph |
Discovery Date | 1996-06 |
Reference | Butler & Marcy 1996 |
At more than 50 Earth masses, 47 UMa c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
Mass | 171.621 Earth masses |
Density | 0.329 grams per cubic centimeter |
Radius | 14.200 Earth radiae |
Semi-major Axis | 3.6 AU |
Eccentricity | 0.098 |
Orbital Period | 2391.000 days |
Discovery Method | Radial Velocity |
Discovery Facility | Lick Observatory |
Discovery Telescope | 3.0 m C. Donald Shane Telescope |
Discovery Instrument | Hamilton Echelle Spectrograph |
Discovery Date | 2002-01 |
Reference | Fischer et al. 2002 |
At more than 50 Earth masses, 47 UMa d is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
Mass | 521.220 Earth masses |
Density | 1.160 grams per cubic centimeter |
Radius | 13.500 Earth radiae |
Semi-major Axis | 11.6 AU |
Eccentricity | 0.16 |
Orbital Period | 14002.000 days |
Discovery Method | Radial Velocity |
Discovery Facility | Lick Observatory |
Discovery Telescope | 3.0 m C. Donald Shane Telescope |
Discovery Instrument | Hamilton Echelle Spectrograph |
Discovery Date | 2010-04 |
Reference | Gregory & Fischer 2010 |