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.

Community discussion

Comments 0

No comments yet. The airlock is open.

Sign in or create an account to comment and vote.

GJ 414 A b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/GJ 414 A b

Confirmed exoplanet · Neptune Like

GJ 414 A b

Orbiting GJ 414 A

Discovered in 2021 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of GJ 414 A b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,021
Method: Radial Velocity
Radius: 2.63 R⊕
Mass: 7.6 M⊕
Orbit: 50.8 days
Distance: 11.8893 pc

Planet profile

Orbit and physical properties

Orbital period: 50.8 days
Semi-major axis: 0.2324 AU
Eccentricity: 0.45
Radius: 2.63 Earth radii
Mass: 7.6 Earth masses
Mass provenance: Msini
Density: 2.3 g/cm³
Equilibrium temperature: 308.6 K
Insolation: 2.2033 Earth flux

Host system

Star and system properties

Host star: GJ 414 A
Stars in system: 2
Known planets in system: 2
Spectral type: K7 V
Stellar temperature: 4,120 K
Stellar radius: 0.68 R☉
Stellar mass: 0.65 M☉
Stellar metallicity: 0.24 dex
Stellar age: 12.4 Gyr
Distance: 11.8893 parsecs
Right ascension: 11h11m05.88s
Declination: +30d26m42.61s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,021
Publication date: 2021-02
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from GJ 414 A b.

Generic neptune like catalog artwork; not a direct image of GJ 414 A b — Apex Andromeda catalog artwork