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Info for exoplanet "Tajonya Dopa"


Scientific (actual) data
PlanetHD 81817 b
Planet statusConfirmed
Mass sini27.1
Orbital period1047.1
Semi major axis3.3
Discovered2020
Updated2020-05-20
K200
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Mass detection typeRadial Velocity
Star nameHD 81817
Right ascension144.27°
Declination81.31°
Mag v4.4
Star distance269
Star metallicity-0.17
Star mass4.3
Star radius83.8
Star age0.15
Star temperature4140
Wikipedia articleHD 81817 b

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Fictional info (?)
Suggested nameTajonya Dopa
Planet typeCold planet
This cold planet is named after the deity Tajonya Dopa, the demon of the sky.

Like Nyunsha Myu, Tajonya Dopa has been orbiting HD 81817 within Pechido Ki's orbit as an inferior planet, and never moves more than 10 degrees away from HD 81817.

Tajonya Dopa's axis has the smallest tilt of any of its solar system's planets.

Tajonya Dopa's dense atmosphere make observation of its surface challenging in visible light, and the first detailed maps did not emerge until the arrival of the Magellan orbiter 38 years ago.
AtmosphereHydrogen chloride32%
Ammonium hydrosulfide (NH4SH)32%
Oxygen23%
Carbon dioxide12%
2H2O0.16%
Nitric oxide1.1E-5%
Atmospheric pressure1.3 bar
artist's rendition
MoonGyuryu'kyofu MaVery small round rocky moon
Yazu Numu-gafuSmall almost round crater-filled moon
Ryokyamyo GaSmall round rocky moon
Sopepimya GabeLarge slightly egg-shaped crater-filled asteroid
Ryashonya-bobyoHuge slightly egg-shaped oceanic asteroid
ChinoHuge round oceanic comet
Kyosha-yahyo-taLarge round rocky moon
Pome RuSmall irregular rocky moon
SefuSmall potato shaped crater-filled planetoid
Igipese'noVery small slightly egg-shaped rocky moon
Ryoribyu RyuHuge almost round ice moon
RoraHuge slightly egg-shaped rocky planetoid
Gopyuna-shogapeVery small almost round ice comet
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