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8 UMi b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/8 UMi b

Confirmed exoplanet · Gas Giant

8 UMi b

Orbiting 8 UMi

Discovered in 2015 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 8 UMi b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,015
Method: Radial Velocity
Radius: 13.5 R⊕
Mass: 524.416872 M⊕
Orbit: 93.31 days
Distance: 162.552 pc

Planet profile

Orbit and physical properties

Orbital period: 93.31 days
Semi-major axis: 0.462 AU
Eccentricity: 0.062
Radius: 13.5 Earth radii
Mass: 524.416872 Earth masses
Mass provenance: Msini
Density: 1.17 g/cm³
Equilibrium temperature: 1,126.38 K
Insolation: 247.8402 Earth flux

Host system

Star and system properties

Host star: 8 UMi
Stars in system: 1
Known planets in system: 1
Spectral type: K0
Stellar temperature: 4,847 K
Stellar radius: 10.73 R☉
Stellar mass: 1.51 M☉
Stellar metallicity: -0.03 dex
Stellar age: 1.7 Gyr
Distance: 162.552 parsecs
Right ascension: 14h56m48.40s
Declination: +74d54m03.38s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,015
Publication date: 2015-12
Discovery locale: Ground
Facility: Bohyunsan Optical Astronomical Observatory
Telescope: 1.8 m Telescope
Instrument: BOES Echelle Spectrograph
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from 8 UMi b.

Generic gas giant catalog artwork; not a direct image of 8 UMi b — Apex Andromeda catalog artwork