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HD 1397 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 1397 b

Confirmed exoplanet · Gas Giant

HD 1397 b

Orbiting HD 1397

Discovered in 2018 using Transit. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic gas giant catalog artwork; not a direct image of HD 1397 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 11.500434 R⊕
Mass: 131.89945 M⊕
Orbit: 11.53533 days
Distance: 79.5702 pc

Planet profile

Orbit and physical properties

Orbital period: 11.53533 days
Semi-major axis: 0.1097 AU
Eccentricity: 0.251
Radius: 11.500434 Earth radii
Mass: 131.89945 Earth masses
Mass provenance: Mass
Density: 0.477 g/cm³
Equilibrium temperature: 1,228.3 K
Insolation: 356 Earth flux

Host system

Star and system properties

Host star: HD 1397
Stars in system: 1
Known planets in system: 1
Spectral type: G5 III/IV
Stellar temperature: 5,521 K
Stellar radius: 2.336 R☉
Stellar mass: 1.324 M☉
Stellar metallicity: 0.29 dex
Stellar age: 4.51 Gyr
Distance: 79.5702 parsecs
Right ascension: 00h17m47.32s
Declination: -66d21m32.14s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,018
Publication date: 2019-03
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 ↗

Visual archive

Gallery

One image from HD 1397 b.

Generic gas giant catalog artwork; not a direct image of HD 1397 b — Apex Andromeda catalog artwork