exoplanet_descriptions/hd_83342_b.txt Usuri Mika (HD 83342 b) - Exoplanets
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Info for exoplanet "Usuri Mika"


Scientific (actual) data
NameHD 83342 b
Planet statusConfirmed
Planet mass0.4012
Radius0.869
Orbital period45.5221
Semi major axis0.2652
Orbit eccentricity0.48
Discovered2024
Updated2024-06-26
PublicationPublished in a refereed paper
Detection typePrimary Transit
Mass measurement typeRadial Velocity
Radius measurement typePrimary Transit
Alternate namesTOI-1898 b, TOI-1898.01
Star nameHD 83342
Right ascension144.56°
Declination23.55°
Mag v7.86
Mag j6.92
Mag h6.72
Mag k6.66
Star distance79.6682
Star metallicity-0.1
Star mass1.24
Star radius1.61
Star sp typeF7IV-V
Star age3.4
Star temperature6303.91
Star alternate namesTOI-1898
Wikipedia articleHD 83342 b

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Fictional info (?)
Suggested nameUsuri Mika
Planet typeCold gas giant
It has the longest rotation period (445 days) of any planet in its solar system and rotates in the opposite direction to most other planets.

A prominent result is the "great blue spot", a giant storm that is known to have existed for centuries since it was first seen by telescope.
AtmosphereFormaldehyde49%
Ethane38%
Water vapor6.1%
Oxygen3.5%
Hydrogen deuteride (HD)2.9%
Sulfur dioxide0.0065%
Atmospheric pressure1.7 bar
artist's rendition
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