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HIP 98599 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HIP 98599 b

Confirmed exoplanet · Gas Giant

HIP 98599 b

Orbiting HIP 98599

Discovered in 2026 using Radial Velocity. 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 98599 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,026
Method: Radial Velocity
Radius: 12.7 R⊕
Mass: 2,177.124588 M⊕
Orbit: 2,656 days
Distance: 75.9428 pc

Planet profile

Orbit and physical properties

Orbital period: 2,656 days
Semi-major axis: 3.96 AU
Eccentricity: 0.169
Radius: 12.7 Earth radii
Mass: 2,177.124588 Earth masses
Mass provenance: Mass
Density: 5.84 g/cm³
Equilibrium temperature: 171.08 K
Insolation: 0.1724 Earth flux

Host system

Star and system properties

Host star: HIP 98599
Stars in system: 1
Known planets in system: 1
Spectral type: F7 V
Stellar temperature: 5,978 K
Stellar radius: 1.39484 R☉
Stellar mass: 1.19 M☉
Stellar metallicity: -0.12 dex
Stellar age: 5.23 Gyr
Distance: 75.9428 parsecs
Right ascension: 20h01m38.17s
Declination: -22d06m39.83s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,026
Publication date: 2026-05
Discovery locale: Ground
Facility: Multiple Facilities
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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