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HD 219666 b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/HD 219666 b

Confirmed exoplanet · Neptune Like

HD 219666 b

Orbiting HD 219666

Discovered in 2018 using Transit. 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 219666 b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Transit
Radius: 4.898 R⊕
Mass: 17.6 M⊕
Orbit: 6.034468 days
Distance: 94.1719 pc

Planet profile

Orbit and physical properties

Orbital period: 6.034468 days
Semi-major axis: 0.06356 AU
Eccentricity: 0.05
Radius: 4.898 Earth radii
Mass: 17.6 Earth masses
Mass provenance: Mass
Density: 0.87 g/cm³
Equilibrium temperature: 1,076 K
Insolation: 598.4408 Earth flux

Host system

Star and system properties

Host star: HD 219666
Stars in system: 1
Known planets in system: 1
Spectral type: G5 V
Stellar temperature: 5,540 K
Stellar radius: 1.059 R☉
Stellar mass: 1.02 M☉
Stellar metallicity: 0.04 dex
Stellar age: 10 Gyr
Distance: 94.1719 parsecs
Right ascension: 23h18m14.22s
Declination: -56d54m14.35s

Discovery

Detection and provenance

Discovery method: Transit
Discovery year: 2,018
Publication date: 2019-03
Discovery locale: Space
Facility: Transiting Exoplanet Survey Satellite (TESS)
Telescope: 0.1 m TESS Telescope
Instrument: TESS CCD Array
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from HD 219666 b.

Generic neptune like catalog artwork; not a direct image of HD 219666 b — Apex Andromeda catalog artwork