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V0391 Peg b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/V0391 Peg b

Confirmed exoplanet · Gas Giant

V0391 Peg b

Orbiting V0391 Peg

Discovered in 2007 using Pulsation Timing Variations. 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 V0391 Peg b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,007
Method: Pulsation Timing Variations
Radius: 13.1 R⊕
Mass: 1,017.056 M⊕
Orbit: 1,170 days
Distance: 1,195.98 pc

Planet profile

Orbit and physical properties

Orbital period: 1,170 days
Semi-major axis: 1.7 AU
Eccentricity: 0
Radius: 13.1 Earth radii
Mass: 1,017.056 Earth masses
Mass provenance: Msini
Density: 2.49 g/cm³
Equilibrium temperature: 519.69 K
Insolation: 9.375 Earth flux

Host system

Star and system properties

Host star: V0391 Peg
Stars in system: 1
Known planets in system: 1
Spectral type: sdBV
Stellar temperature: 29,300 K
Stellar radius: 0.23 R☉
Stellar mass: 0.5 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: 10 Gyr
Distance: 1,195.98 parsecs
Right ascension: 22h04m12.10s
Declination: +26d25m07.76s

Discovery

Detection and provenance

Discovery method: Pulsation Timing Variations
Discovery year: 2,007
Publication date: 2007-09
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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