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HD 28109 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 28109 b

Confirmed exoplanet · Neptune Like

HD 28109 b

Orbiting HD 28109

Discovered in 2022 using Transit. 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 HD 28109 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Transit
Radius: 2.69 R⊕
Mass: 6.2 M⊕
Orbit: 22.891054 days
Distance: 139.611 pc

Planet profile

Orbit and physical properties

Orbital period: 22.891054 days
Semi-major axis: 0.1357 AU
Eccentricity: 0.0071
Radius: 2.69 Earth radii
Mass: 6.2 Earth masses
Mass provenance: Mass
Density: 1.8 g/cm³
Equilibrium temperature: 867 K
Insolation: 33.4501 Earth flux

Host system

Star and system properties

Host star: HD 28109
Stars in system: 1
Known planets in system: 3
Spectral type: F8
Stellar temperature: 6,189 K
Stellar radius: 1.425 R☉
Stellar mass: 1.227 M☉
Stellar metallicity: 0.1 dex
Stellar age: 3.2 Gyr
Distance: 139.611 parsecs
Right ascension: 04h20m57.19s
Declination: -68d06m09.68s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,022
Publication date: 2022-09
Discovery locale: Space
Facility: Transiting Exoplanet Survey Satellite (TESS)
Telescope: 0.1 m TESS Telescope
Instrument: TESS CCD Array
NASA Exoplanet Archive: Open composite record ↗

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