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MOA-2011-BLG-291L b | Exoplanets | Apex Andromeda | Apex Andromeda

Planets/Exoplanets/MOA-2011-BLG-291L b

Confirmed exoplanet · Neptune Like

MOA-2011-BLG-291L b

Orbiting MOA-2011-BLG-291L

Discovered in 2018 using Microlensing. 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 MOA-2011-BLG-291L b — Generic category artwork—not a direct imageApex Andromeda catalog artwork

Discovery: 2,018
Method: Microlensing
Radius: 4.43 R⊕
Mass: 18 M⊕
Orbit: Not reported by the NASA Exoplanet Archive
Distance: 4,400 pc

Planet profile

Orbit and physical properties

Orbital period: Not reported by the NASA Exoplanet Archive
Semi-major axis: 0.69 AU
Eccentricity: Not reported by the NASA Exoplanet Archive
Radius: 4.43 Earth radii
Mass: 18 Earth masses
Mass provenance: Mass
Density: 1.14 g/cm³
Equilibrium temperature: Not reported by the NASA Exoplanet Archive
Insolation: Not reported by the NASA Exoplanet Archive

Host system

Star and system properties

Host star: MOA-2011-BLG-291L
Stars in system: 1
Known planets in system: 1
Spectral type: Not reported by the NASA Exoplanet Archive
Stellar temperature: Not reported by the NASA Exoplanet Archive
Stellar radius: Not reported by the NASA Exoplanet Archive
Stellar mass: 0.15 M☉
Stellar metallicity: Not reported by the NASA Exoplanet Archive
Stellar age: Not reported by the NASA Exoplanet Archive
Distance: 4,400 parsecs
Right ascension: 17h55m28.29s
Declination: -29d10m14.4s

Discovery

Detection and provenance

Discovery method: Microlensing
Discovery year: 2,018
Publication date: 2018-09
Discovery locale: Ground
Facility: MOA
Telescope: 1.8 m MOA Telescope
Instrument: MOA CCD Array
NASA Exoplanet Archive: Open composite record ↗

Visual archive

Gallery

One image from MOA-2011-BLG-291L b.

Generic neptune like catalog artwork; not a direct image of MOA-2011-BLG-291L b — Apex Andromeda catalog artwork