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HD 77946 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 77946 b

Confirmed exoplanet · Neptune Like

HD 77946 b

Orbiting HD 77946

Discovered in 2024 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 77946 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,024
Method: Transit
Radius: 2.896461 R⊕
Mass: 10.9 M⊕
Orbit: 6.527363 days
Distance: 99.451 pc

Planet profile

Orbit and physical properties

Orbital period: 6.527363 days
Semi-major axis: 0.073 AU
Eccentricity: 0.211
Radius: 2.896461 Earth radii
Mass: 10.9 Earth masses
Mass provenance: Mass
Density: 2.44 g/cm³
Equilibrium temperature: 1,128.86 K
Insolation: 413.1008 Earth flux

Host system

Star and system properties

Host star: HD 77946
Stars in system: 1
Known planets in system: 1
Spectral type: F5
Stellar temperature: 6,007 K
Stellar radius: 1.3174 R☉
Stellar mass: 1.1973 M☉
Stellar metallicity: 0.215 dex
Stellar age: 3.1 Gyr
Distance: 99.451 parsecs
Right ascension: 09h07m06.63s
Declination: +46d40m20.73s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,024
Publication date: 2024-04
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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