HD 208897 b
Orbiting HD 208897
HD 208897 b is an exoplanet orbiting the star HD 208897, discovered in 2017 using the Radial Velocity method.
Minimum Mass (M sin i)
379.49
Earth masses
Orbital Period
358.3
days
Distance
67.5
parsecs
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
379.49
Radial-velocity minimum
Equilibrium Temperature
Unknown
Parameter source: Teng et al. 2023
Orbital Period
358.270+0.870−1.500days
Semi-Major Axis
1.0630+0.0020−0.0030au
M sin(i) (Earth masses)
379.49+15.57−13.98
M sin(i) (Jupiter masses)
1.1940+0.0490−0.0440
Eccentricity
0.0200+0.0490−0.0100
Epoch of Periastron
2456178.20+4.70−311.40days(JD)
Argument of Periastron
-113.5+161.3−4.8deg
Radial Velocity Semi-Amplitude
29.45+1.25−1.04m/s
Distance from Earth
67.5 pc (~220 ly)
Spectral Type
K0
Temperature
4860 K
Mass (Solar)
1.25 M☉
Radius (Solar)
4.98 R☉
Luminosity
1.09 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
329.7491°, 19.0202°
Discovery Method
Radial Velocity
Discovery Year
2017
Source ID: HD 208897 b
HD 208897 b orbits HD 208897 and was reported in 2017 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 379.49 Earth masses (M sin i) and an orbital period of 358.27 days.
Catalog data places the system at about 67.5 parsecs from Earth, a host star classified as K0, 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 HD 208897