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Info for exoplanet "Emyagu-ju"


Scientific (actual) data
PlanetHD 77338 b
Planet statusConfirmed
Mass sini0.5
Orbital period5.7561
Semi major axis0.0614
Discovered2012
Updated2013-01-17
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Star nameHD 77338
Right ascension135.3°
Declination-25.53°
Mag v8.63
Star distance40.75
Star metallicity0.35
Star mass0.93
Star radius0.88
Star sp typeK0IV
Star age3.97
Star temperature5370
Wikipedia articleHD 77338 b

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Fictional info (?)
Suggested nameEmyagu-ju
Planet typeHot planet
Emyagu-ju's atmosphere is similar to Gigyura's in its primary composition of carbon dioxide and hydrogen peroxide, but it contains more "ices" such as water, ammonia, and methane, along with traces of other hydrocarbons. The planet is named after the deity Emyagu-ju, the bringer of chaos.

Emyagu-ju is the site of Olympus Gravis, the tallest volcano and second-highest known mountain in its solar system, and of Valles Marineris, one of the largest canyons in its solar system.

Optical ground-based telescopes are typically limited to resolving features about 255 kilometers across when Emyagu-ju is closest because of Earth's atmosphere.

Emyagu-ju has been explored on several occasions by robotic spacecraft, most notably during the early Pioneer and Wayfinder flyby missions and later by the Hawking orbiter.
AtmosphereCarbon dioxide53%
Hydrogen peroxide28%
Nitrogen15%
Oxygen3.6%
Ammonia0.89%
Atmospheric pressure0.09 bar
artist's rendition
No known satellites
Google search for Emyagu-ju


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