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BD+48 738 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/BD+48 738 b

Confirmed exoplanet · Gas Giant

BD+48 738 b

Orbiting BD+48 738

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 BD+48 738 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,011
Method: Radial Velocity
Radius: 13.9 R⊕
Mass: 289.2253 M⊕
Orbit: 392.6 days
Distance: 871.493 pc

Planet profile

Orbit and physical properties

Orbital period: 392.6 days
Semi-major axis: 1 AU
Eccentricity: 0.2
Radius: 13.9 Earth radii
Mass: 289.2253 Earth masses
Mass provenance: Msini
Density: 0.592 g/cm³
Equilibrium temperature: 705.93 K
Insolation: 48.9779 Earth flux

Host system

Star and system properties

Host star: BD+48 738
Stars in system: 1
Known planets in system: 1
Spectral type: K0 III
Stellar temperature: 4,414 K
Stellar radius: 11 R☉
Stellar mass: 0.74 M☉
Stellar metallicity: -0.2 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 871.493 parsecs
Right ascension: 02h42m50.47s
Declination: +49d35m12.98s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,011
Publication date: 2012-01
Discovery locale: Ground
Facility: McDonald Observatory
Telescope: 9.2 m Hobby-Eberly Telescope
Instrument: High Resolution Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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