HIP 9618 b
Orbiting HIP 9618
HIP 9618 b is an exoplanet orbiting the star HIP 9618, discovered in 2023 using the Transit method. It is a Mini-Neptune world.
Radius
3.83
Earth radii
Mass
8.30
Earth masses
Orbital Period
20.8
days
Distance
67.5
parsecs
Equilibrium Temp
641
K
Radius (Earth radii)
3.83
Mass (Earth masses)
8.30
Measured
Equilibrium Temperature
641 K
Parameter source: Polanski et al. 2024
Orbital Period
20.773+0.000−0.000days
Semi-Major Axis
0.1450+0.0030−0.0030au
Planet Mass (Earth masses)
8.30+1.70−1.70
Planet Mass (Jupiter masses)
0.0261+0.0053−0.0053
Eccentricity
0.0000
Argument of Periastron
90.0deg
Distance from Earth
67.5 pc (~220 ly)
Spectral Type
Unknown
Temperature
5649 K
Mass (Solar)
0.94 M☉
Radius (Solar)
0.96 R☉
Luminosity
-0.07 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
30.9050°, 21.2813°
Discovery Method
Transit
Discovery Year
2023
Source ID: HIP 9618 b
HIP 9618 b orbits HIP 9618 and was reported in 2023 and was detected with the Transit method.
Published measurements list a radius of 3.83 Earth radii, a mass of 8.3 Earth masses, an orbital period of 20.77 days, and an equilibrium temperature near 641 K.
Catalog data places the system at about 67.5 parsecs from Earth and 2 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open HIP 9618More planets in this system