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HD 28471 d | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 28471 d

Confirmed exoplanet · Super Earth

HD 28471 d

Orbiting HD 28471

Discovered in 2025 using Radial Velocity. This page reflects the latest synchronized NASA Exoplanet Archive composite record.

NASA Archive record ↗Back to catalog →

Generic super earth catalog artwork; not a direct image of HD 28471 d — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,025
Method: Radial Velocity
Radius: 2.06 R⊕
Mass: 4.91 M⊕
Orbit: 11.681 days
Distance: 43.6455 pc

Planet profile

Orbit and physical properties

Orbital period: 11.681 days
Semi-major axis: 0.1 AU
Eccentricity: 0.093
Radius: 2.06 Earth radii
Mass: 4.91 Earth masses
Mass provenance: Msini
Density: 3.09 g/cm³
Equilibrium temperature: 945 K
Insolation: 115.259 Earth flux

Host system

Star and system properties

Host star: HD 28471
Stars in system: 1
Known planets in system: 3
Spectral type: G5 V
Stellar temperature: 5,766 K
Stellar radius: 1.08 R☉
Stellar mass: 0.98 M☉
Stellar metallicity: -0.04 dex
Stellar age: 6.56 Gyr
Distance: 43.6455 parsecs
Right ascension: 04h25m09.00s
Declination: -64d04m43.27s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,025
Publication date: 2025-10
Discovery locale: Ground
Facility: La Silla Observatory
Telescope: 3.6 m ESO Telescope
Instrument: HARPS Spectrograph
NASA Exoplanet Archive: Open composite record ↗

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