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HIP 57274 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HIP 57274 b

Confirmed exoplanet · Gas Giant

HIP 57274 b

Orbiting HIP 57274

Discovered in 2011 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 57274 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: Not reported by the NASA Exoplanet Archive
Mass: 3,359.446262 M⊕
Orbit: 8.1352 days
Distance: 25.8618 pc

Planet profile

Orbit and physical properties

Orbital period: 8.1352 days
Semi-major axis: 0.07 AU
Eccentricity: 0.19
Radius: Not reported by the NASA Exoplanet Archive
Mass: 3,359.446262 Earth masses
Mass provenance: Mass
Density: Not reported by the NASA Exoplanet Archive
Equilibrium temperature: 725.95 K
Insolation: 316.085 Earth flux

Host system

Star and system properties

Host star: HIP 57274
Stars in system: 1
Known planets in system: 3
Spectral type: K4 V
Stellar temperature: 4,510 K
Stellar radius: 0.78 R☉
Stellar mass: 0.29 M☉
Stellar metallicity: 0.01 dex
Stellar age: 7.87 Gyr
Distance: 25.8618 parsecs
Right ascension: 11h44m40.93s
Declination: +30d57m27.53s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,011
Publication date: 2012-01
Discovery locale: Ground
Facility: W. M. Keck Observatory
Telescope: 10 m Keck I Telescope
Instrument: HIRES Spectrometer
NASA Exoplanet Archive: Open composite record ↗

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