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HD 5278 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 5278 c

Confirmed exoplanet · Neptune Like

HD 5278 c

Orbiting HD 5278

Discovered in 2021 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 5278 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,021
Method: Radial Velocity
Radius: 4.49 R⊕
Mass: 18.4 M⊕
Orbit: 40.87 days
Distance: 57.5846 pc

Planet profile

Orbit and physical properties

Orbital period: 40.87 days
Semi-major axis: 0.2416 AU
Eccentricity: 0.07
Radius: 4.49 Earth radii
Mass: 18.4 Earth masses
Mass provenance: Msini
Density: 1.12 g/cm³
Equilibrium temperature: 664.95 K
Insolation: 32.6706 Earth flux

Host system

Star and system properties

Host star: HD 5278
Stars in system: 1
Known planets in system: 2
Spectral type: F V
Stellar temperature: 6,203 K
Stellar radius: 1.194 R☉
Stellar mass: 1.126 M☉
Stellar metallicity: -0.12 dex
Stellar age: 3 Gyr
Distance: 57.5846 parsecs
Right ascension: 00h50m11.23s
Declination: -83d44m37.56s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,021
Publication date: 2021-04
Discovery locale: Ground
Facility: Paranal Observatory
Telescope: 8.2 m ESO VLT UT3 Melipal Telescope
Instrument: ESPRESSO
NASA Exoplanet Archive: Open composite record ↗

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