HD 89345 b
Orbiting HD 89345
HD 89345 b is an exoplanet orbiting the star HD 89345, discovered in 2018 using the Transit method. It is a Neptune-sized world.
Radius
7.40
Earth radii
Mass
34.96
Earth masses
Orbital Period
11.8
days
Distance
132.3
parsecs
Equilibrium Temp
1089
K
Radius (Earth radii)
7.40
Mass (Earth masses)
34.96
Measured
Equilibrium Temperature
1089 K
Parameter source: Yu et al. 2018
Orbital Period
11.814+0.000−0.000days
Semi-Major Axis
0.1066+0.0012−0.0014au
Planet Mass (Earth masses)
34.96+5.40−5.72
Planet Mass (Jupiter masses)
0.1100+0.0170−0.0180
Eccentricity
0.2200+0.0950−0.1300
Epoch of Periastron
2457911.30+1.50−0.89days(BJD-TDB)
Argument of Periastron
-13.0+58.0−27.0deg
Radial Velocity Semi-Amplitude
9.20+1.50−1.50m/s
Distance from Earth
132.3 pc (~432 ly)
Spectral Type
Unknown
Temperature
5576 K
Mass (Solar)
1.16 M☉
Radius (Solar)
1.75 R☉
Luminosity
0.42 log L☉
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
154.6711°, 10.1288°
Discovery Method
Transit
Discovery Year
2018
Source ID: HD 89345 b
HD 89345 b orbits HD 89345 and was reported in 2018 and was detected with the Transit method.
Published measurements list a radius of 7.4 Earth radii, a mass of 34.96 Earth masses, an orbital period of 11.81 days, and an equilibrium temperature near 1,089 K.
Catalog data places the system at about 132.3 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 HD 89345