Skip to content

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Menu

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Acquiring mission data

Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

This is an independent informational project and is not affiliated with, endorsed by, or sponsored by NASA, ESA, JAXA, Roscosmos, CNSA, ISRO, CSA, or any other space agency. Agency names, logos, and other marks are used for identification where permitted by their respective usage policies.

A passion project from the team behind Apex Rental Pro.

HD 220197 b | Exoplanets | Apex Andromeda | Apex Andromeda

Community discussion

Comments 0

No comments yet. The airlock is open.

Sign in or create an account to comment and vote.

Planets/Exoplanets/HD 220197 b

Confirmed exoplanet · Gas Giant

HD 220197 b

Orbiting HD 220197

Discovered in 2018 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic gas giant catalog artwork; not a direct image of HD 220197 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Radial Velocity
Radius: 9.32 R⊕
Mass: 63.566 M⊕
Orbit: 1,728 days
Distance: 64.411 pc

Planet profile

Orbit and physical properties

Orbital period: 1,728 days
Semi-major axis: 2.729 AU
Eccentricity: 0.187
Radius: 9.32 Earth radii
Mass: 63.566 Earth masses
Mass provenance: Msini
Density: 0.431 g/cm³
Equilibrium temperature: 164.22 K
Insolation: 0.1332 Earth flux

Host system

Star and system properties

Host star: HD 220197
Stars in system: 1
Known planets in system: 1
Spectral type: G5
Stellar temperature: 5,683 K
Stellar radius: 0.98 R☉
Stellar mass: 0.91 M☉
Stellar metallicity: -0.55 dex
Stellar age: 10.165 Gyr
Distance: 64.411 parsecs
Right ascension: 23h21m58.73s
Declination: +16d37m56.39s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,018
Publication date: 2019-01
Discovery locale: Ground
Facility: Roque de los Muchachos Observatory
Telescope: 3.58 m Telescopio Nazionale Galileo
Instrument: HARPS-N Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 220197 b.

Generic gas giant catalog artwork; not a direct image of HD 220197 b — Apex Andromeda catalog artwork