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HIP 99770 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HIP 99770 b

Confirmed exoplanet · Gas Giant

HIP 99770 b

Orbiting HIP 99770

Discovered in 2023 using Imaging. 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 HIP 99770 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,023
Method: Imaging
Radius: 12.2 R⊕
Mass: 5,403.082919 M⊕
Orbit: 18,600 days
Distance: 40.0765 pc

Planet profile

Orbit and physical properties

Orbital period: 18,600 days
Semi-major axis: 15.8 AU
Eccentricity: 0.31
Radius: 12.2 Earth radii
Mass: 5,403.082919 Earth masses
Mass provenance: Mass
Density: 16.4 g/cm³
Equilibrium temperature: 135.17 K
Insolation: 0.0555 Earth flux

Host system

Star and system properties

Host star: HIP 99770
Stars in system: 1
Known planets in system: 1
Spectral type: A5-A6
Stellar temperature: 8,000 K
Stellar radius: 1.93986 R☉
Stellar mass: 1.9 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: 0.264 Gyr
Distance: 40.0765 parsecs
Right ascension: 20h14m32.12s
Declination: +36d48m23.78s

Discovery

Detection and provenance

Discovery method: Imaging
Discovery year: 2,023
Publication date: 2023-04
Discovery locale: Multiple Locales
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HIP 99770 b.

Generic gas giant catalog artwork; not a direct image of HIP 99770 b — Apex Andromeda catalog artwork