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HD 18599 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 18599 b

Confirmed exoplanet · Neptune Like

HD 18599 b

Orbiting HD 18599

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 18599 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Transit
Radius: 2.6 R⊕
Mass: 24.1 M⊕
Orbit: 4.137435 days
Distance: 38.5653 pc

Planet profile

Orbit and physical properties

Orbital period: 4.137435 days
Semi-major axis: 0.048 AU
Eccentricity: 0.34
Radius: 2.6 Earth radii
Mass: 24.1 Earth masses
Mass provenance: Mass
Density: 7.5 g/cm³
Equilibrium temperature: 863 K
Insolation: 145 Earth flux

Host system

Star and system properties

Host star: HD 18599
Stars in system: 2
Known planets in system: 1
Spectral type: K2 V
Stellar temperature: 5,145 K
Stellar radius: 0.767 R☉
Stellar mass: 0.863 M☉
Stellar metallicity: 0 dex
Stellar age: 0.4 Gyr
Distance: 38.5653 parsecs
Right ascension: 02h57m02.88s
Declination: -56d11m30.73s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,022
Publication date: 2023-07
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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