Exoplanet
HD 219666 b
Orbiting HD 219666
Overview
HD 219666 b is an exoplanet orbiting the star HD 219666, discovered in 2018 using the Transit method. It is a Neptune-sized world.
Key Measurements
Radius
4.90
Earth radii
015 R⊕
Mass
17.60
Earth masses
0500 M⊕
Orbital Period
6.0
days
0.1d10,000d
Distance
94.2
parsecs
Nearby10,000 pc
Equilibrium Temp
1076
K
150 K3,500 K
Radius (Earth radii)
4.90
Mass (Earth masses)
17.60
Measured
Equilibrium Temperature
1076 K
Orbital Period
6.03 days
Distance from Earth
94.2 pc (~307 ly)
Spectral Type
Unknown
Temperature
5540 K
Mass (Solar)
1.02 M☉
Radius (Solar)
1.06 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
349.5593°, -56.9040°
Discovery Method
Transit
Discovery Year
2018
Data Sources
Source ID: HD 219666 b