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.

G 9-40 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/G 9-40 b

Confirmed exoplanet · Super Earth

G 9-40 b

Orbiting G 9-40

Discovered in 2019 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of G 9-40 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,019
Method: Transit
Radius: 1.9 R⊕
Mass: 4 M⊕
Orbit: 5.745998 days
Distance: 27.9276 pc

Planet profile

Orbit and physical properties

Orbital period: 5.745998 days
Semi-major axis: 0.0418 AU
Eccentricity: 0
Radius: 1.9 Earth radii
Mass: 4 Earth masses
Mass provenance: Mass
Density: 3.2 g/cm³
Equilibrium temperature: 440.6 K
Insolation: 6.27 Earth flux

Host system

Star and system properties

Host star: G 9-40
Stars in system: 1
Known planets in system: 1
Spectral type: M2.5 V
Stellar temperature: 3,395 K
Stellar radius: 0.3026 R☉
Stellar mass: 0.2952 M☉
Stellar metallicity: -0.07 dex
Stellar age: 9.9 Gyr
Distance: 27.9276 parsecs
Right ascension: 08h58m52.52s
Declination: +21d04m29.27s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,019
Publication date: 2020-03
Discovery locale: Space
Facility: K2
Telescope: 0.95 m Kepler Telescope
Instrument: Kepler CCD Array
NASA Exoplanet Archive: Open composite record ↗

Community discussion

Comments 0

No comments yet. The airlock is open.

Sign in or create an account to comment and vote.