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HD 103949 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 103949 b

Confirmed exoplanet · Neptune Like

HD 103949 b

Orbiting HD 103949

Discovered in 2019 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 103949 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,019
Method: Radial Velocity
Radius: 3.35 R⊕
Mass: 11.2 M⊕
Orbit: 120.878 days
Distance: 26.4997 pc

Planet profile

Orbit and physical properties

Orbital period: 120.878 days
Semi-major axis: 0.439 AU
Eccentricity: 0.19
Radius: 3.35 Earth radii
Mass: 11.2 Earth masses
Mass provenance: Msini
Density: 1.64 g/cm³
Equilibrium temperature: 302.65 K
Insolation: 1.3983 Earth flux

Host system

Star and system properties

Host star: HD 103949
Stars in system: 1
Known planets in system: 1
Spectral type: K3 V
Stellar temperature: 4,792 K
Stellar radius: 0.753113 R☉
Stellar mass: 0.77 M☉
Stellar metallicity: -0.07 dex
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 26.4997 parsecs
Right ascension: 11h58m11.51s
Declination: -23d55m26.84s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,019
Publication date: 2019-06
Discovery locale: Ground
Facility: Las Campanas Observatory
Telescope: 6.5 m Magellan II Clay Telescope
Instrument: Carnegie Planet Finder Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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