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HD 11964 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 11964 c

Confirmed exoplanet · Neptune Like

HD 11964 c

Orbiting HD 11964

Discovered in 2008 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic neptune like catalog artwork; not a direct image of HD 11964 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,008
Method: Radial Velocity
Radius: 5.38 R⊕
Mass: 25 M⊕
Orbit: 37.91 days
Distance: 33.5369 pc

Planet profile

Orbit and physical properties

Orbital period: 37.91 days
Semi-major axis: 0.229 AU
Eccentricity: 0.3
Radius: 5.38 Earth radii
Mass: 25 Earth masses
Mass provenance: Msini
Density: 0.882 g/cm³
Equilibrium temperature: 757.54 K
Insolation: 54.875 Earth flux

Host system

Star and system properties

Host star: HD 11964
Stars in system: 2
Known planets in system: 2
Spectral type: G9 V CN+1
Stellar temperature: 5,303 K
Stellar radius: 2.00971 R☉
Stellar mass: 0.91 M☉
Stellar metallicity: 0.1 dex
Stellar age: 7.45 Gyr
Distance: 33.5369 parsecs
Right ascension: 01h57m09.22s
Declination: -10d14m36.49s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,008
Publication date: 2009-03
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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