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Info for exoplanet "Jiriu'wo"


Scientific (actual) data
PlanetK2-265 b
Planet statusConfirmed
Planet mass0.02058
Radius0.153
Orbital period2.36917
Semi major axis0.03376
Orbit eccentricity0.084
Inclination87.7
Discovered2018
Updated2021-02-05
Tconj2456980
Tzero tr2456980
Impact parameter0.3
K3.34
PublicationPublished in a refereed paper
Detection typePrimary Transit
Mass detection typeRadial Velocity
Radius detection typePrimary Transit
Alternate names2MASS J22480755-1429407 b, EPIC 206011496 b, EPIC 206011496.01, TYC 5818-486-1 b, WISE J224807.58-142941.1 b
Star nameK2-265
Right ascension342.03°
Declination-14.49°
Mag v11.1
Mag j9.726
Mag h9.312
Star distance139.22
Star metallicity0.078
Star mass0.92
Star radius0.98
Star sp typeG8 V
Star age9.7
Star temperature5477
Star alternate names2MASS J22480755-1429407, EPIC 206011496, TYC 5818-486-1, WISE J224807.58-142941.1
Wikipedia articleK2-265 b

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Fictional info (?)
Suggested nameJiriu'wo
Planet typeSmall hot gas planet
Jiriu'wo is the oldest planet known belonging to K2-265 and one of the largest in its solar system. When viewed from Shigoya, Jiriu'wo 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. This planet is named after the deity Jiriu'wo, the bringer of the sky.

The planet telescopically displays the complete range of phases, similar to Venus and the Moon, as it moves in its inner orbit relative to K2-265, which reoccurs over the so-called synodic period approximately every 58 days.

Jiriu'wo has been explored on several occasions by robotic spacecraft, most notably during the early Pioneer and Wayfinder flyby missions and later by the Isaac orbiter. In late February 2400, Jiriu'wo was visited by the New Horizons probe, which used Jiriu'wo's gravity to increase its speed and bend its trajectory en route to Shigoya. The latest probe to visit the planet is Pioneer, which entered into orbit around Jiriu'wo after a very expensive voyage.
AtmosphereHydrogen chloride90%
Nitric oxide5.1%
Hydrogen peroxide4.4%
Carbon dioxide4.0E-5%
Atmospheric pressure2.7 bar
artist's rendition
No known satellites
Google search for Jiriu'wo


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