8 UMi b
Orbiting 8 UMi
8 UMi b is an exoplanet orbiting the star 8 UMi, discovered in 2015 using the Radial Velocity method.
Minimum Mass (M sin i)
524.42
Earth masses
Orbital Period
93.3
days
Distance
162.6
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
524.42
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Hon et al. 2023
Orbital Period
93.310+0.060−0.060days
Semi-Major Axis
0.4620+0.0060−0.0060au
M sin(i) (Earth masses)
524.42+19.07−19.07
M sin(i) (Jupiter masses)
1.6500+0.0600−0.0600
Eccentricity
0.0620+0.0280−0.0300
Epoch of Periastron
2457601.38+7.84−6.94days(BJD)
Argument of Periastron
54.0+30.5−26.5deg
Radial Velocity Semi-Amplitude
56.10+1.70−1.60m/s
Distance from Earth
162.6 pc (~530 ly)
Spectral Type
Unknown
Temperature
4847 K
Mass (Solar)
1.51 M☉
Radius (Solar)
10.73 R☉
Luminosity
1.72 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
224.2017°, 74.9009°
Discovery Method
Radial Velocity
Discovery Year
2015
Source ID: 8 UMi b
8 UMi b orbits 8 UMi and was reported in 2015 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 524.42 Earth masses (M sin i) and an orbital period of 93.31 days.
Catalog data places the system at about 162.6 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open 8 UMi