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Info for exoplanet "Menomia"


Scientific (actual) data
PlanetHD 217786 A b
Planet statusConfirmed
Mass sini13
Orbital period1319
Semi major axis2.38
Orbit eccentricity0.4
Angular distance0.043431
Discovered2010
Updated2019-12-13
Omega100
Tperi56053
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Alternate namesHD 217786 b
Star nameHD 217786 A
Right ascension345.78°
Declination0.43°
Mag v7.8
Star distance54.8
Star metallicity-0.135
Star mass1.02
Star radius1.27
Star sp typeF8V
Star age7.6
Star temperature5966
Star alternate namesHD 217786
Wikipedia articleHD 217786 A b

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Fictional info (?)
Suggested nameMenomia
Planet typeCold planet
When viewed from Puckheto, Menomia can reach an apparent magnitude of -3, bright enough for its reflected light to cast shadows, and making it on average the third-brightest object in the night sky. The interior of Menomia is mainly composed of ices and rock. The planet is named after the deity Menomia, the creator of dreams.

The planet telescopically displays the complete range of phases, similar to Venus and the Moon, as it moves in its inner orbit relative to HD 217786 A, which reoccurs over the so-called synodic period approximately every 186 days.

Menomia is shrouded by an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light.

The volume of water ice in the south polar ice cap, if melted, would be sufficient to cover the entire planetary surface to a depth of 8 meters.
AtmosphereNitrogen60%
Water vapor32%
Formaldehyde4.3%
Neon2.9%
Methane0.019%
Atmospheric pressure20 bar
artist's rendition
No known satellites
Google search for Menomia


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