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HD 153557 c | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 153557 c

Confirmed exoplanet · Neptune Like

HD 153557 c

Orbiting HD 153557

Discovered in 2022 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 153557 c — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,022
Method: Radial Velocity
Radius: 4.36 R⊕
Mass: 17.480562 M⊕
Orbit: 15.27018 days
Distance: 17.9412 pc

Planet profile

Orbit and physical properties

Orbital period: 15.27018 days
Semi-major axis: 0.111 AU
Eccentricity: 0.511
Radius: 4.36 Earth radii
Mass: 17.480562 Earth masses
Mass provenance: Msini
Density: 1.16 g/cm³
Equilibrium temperature: 604.33 K
Insolation: 22.2262 Earth flux

Host system

Star and system properties

Host star: HD 153557
Stars in system: 1
Known planets in system: 3
Spectral type: K0
Stellar temperature: 4,837 K
Stellar radius: 0.745171 R☉
Stellar mass: 0.79 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 17.9412 parsecs
Right ascension: 16h57m52.96s
Declination: +47d22m04.28s

Discovery

Detection and provenance

Discovery method: Radial Velocity
Discovery year: 2,022
Publication date: 2022-09
Discovery locale: Ground
Facility: Multiple Observatories
Telescope: Multiple Telescopes
Instrument: Multiple Instruments
NASA Exoplanet Archive: Open composite record ↗

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