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HD 190228 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 190228 b

Confirmed exoplanet · Gas Giant

HD 190228 b

Orbiting HD 190228

Discovered in 2022 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 HD 190228 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 12.9 R⊕
Mass: 1,598.676887 M⊕
Orbit: 1,143.59858 days
Distance: 62.7146 pc

Planet profile

Orbit and physical properties

Orbital period: 1,143.59858 days
Semi-major axis: 2.406 AU
Eccentricity: 0.559
Radius: 12.9 Earth radii
Mass: 1,598.676887 Earth masses
Mass provenance: Mass
Density: 4.09 g/cm³
Equilibrium temperature: 267.99 K
Insolation: 0.8598 Earth flux

Host system

Star and system properties

Host star: HD 190228
Stars in system: 1
Known planets in system: 1
Spectral type: G5 IV
Stellar temperature: 5,360 K
Stellar radius: 2.58658 R☉
Stellar mass: 1.415 M☉
Stellar metallicity: -0.24 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 62.7146 parsecs
Right ascension: 20h03m00.90s
Declination: +28d18m23.60s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,022
Publication date: 2022-09
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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