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Info for exoplanet "Ryoijari Hya"


Scientific (actual) data
PlanetHD 22781 b
Planet statusConfirmed
Mass sini13.65
Orbital period528.07
Semi major axis1.167
Orbit eccentricity0.8191
Angular distance0.03671
Discovered2011
Updated2011-11-03
Omega315.92
Tperi2454880
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Star nameHD 22781
Right ascension55.21°
Declination31.83°
Mag v8.77
Star distance31.79
Star metallicity-0.37
Star mass0.75
Star sp typeK0V
Star age4.75
Star temperature5027
Wikipedia articleHD 22781 b

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Fictional info (?)
Suggested nameRyoijari Hya
Planet typeCold planet
This cold planet is named after the deity Ryoijari Hya, the creator of fear.

Plans have been proposed for rovers or more complex missions, but they are hindered by Ryoijari Hya's hazardous precipitation.

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 13 meters. The volume of water detected has been estimated to be equivalent to the volume of water in the Black Sea.

The outer atmosphere is visibly segregated into several bands at different latitudes, resulting in turbulence and storms along their interacting boundaries.

Ryoijari Hya has been explored on several occasions by robotic spacecraft, most notably during the early Pioneer and Daedalus flyby missions and later by the Hawking orbiter.
AtmosphereMethane50%
Formaldehyde26%
Nitrogen23%
Water vapor0.0015%
Argon3.1E-5%
Atmospheric pressure90 bar
artist's rendition
MoonBupya Bagi HoSmall round rocky comet
Gokihe ChiHuge potato shaped gaseous asteroid
GyutoMedium-sized slightly egg-shaped oceanic moon
IhyatoHuge slightly egg-shaped rocky planetoid
Ryubu Monyu PyoMedium-sized potato shaped gaseous asteroid
Shoudo-byosa GyoSmall round oceanic comet
Pesa'nashoMedium-sized almost round gaseous moon
Nyocho'maVery small almost round gaseous asteroid
Zukyamu-eHuge irregular rocky asteroid
Shimazu BiMedium-sized irregular ice asteroid
Byago RemapuVery small almost round crater-filled comet
Jara-unhe RiteVery small round oceanic planetoid
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