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HD 99492 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 99492 b

Confirmed exoplanet · Neptune Like

HD 99492 b

Orbiting HD 99492

Discovered in 2004 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 99492 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,004
Method: Radial Velocity
Radius: 5.44 R⊕
Mass: 25.5 M⊕
Orbit: 17.0503 days
Distance: 18.2038 pc

Planet profile

Orbit and physical properties

Orbital period: 17.0503 days
Semi-major axis: 0.12 AU
Eccentricity: 0.034
Radius: 5.44 Earth radii
Mass: 25.5 Earth masses
Mass provenance: Msini
Density: 0.87 g/cm³
Equilibrium temperature: 622.27 K
Insolation: 23.2671 Earth flux

Host system

Star and system properties

Host star: HD 99492
Stars in system: 2
Known planets in system: 2
Spectral type: K2 V
Stellar temperature: 4,929 K
Stellar radius: 0.822539 R☉
Stellar mass: 0.85 M☉
Stellar metallicity: 0.3 dex
Stellar age: 4.8 Gyr
Distance: 18.2038 parsecs
Right ascension: 11h26m45.52s
Declination: +03d00m25.68s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,004
Publication date: 2005-01
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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