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Info for exoplanet "Oukwangk"


Scientific (actual) data
PlanetGJ 176 c
Planet statusConfirmed
Mass sini0.0233
Orbital period28.586
Semi major axis0.146
Orbit eccentricity0.02
Angular distance0.019108
Discovered2009
Updated2019-06-14
Tzero vr2454290
K2.43
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Mass detection typeRadial Velocity
Star nameGJ 176
Right ascension70.73°
Declination18.96°
Mag v9.97
Mag j6.462
Mag h5.824
Mag k5.607
Star distance9.42
Star metallicity-0.1
Star mass0.49
Star radius0.53
Star sp typeM2.5V
Wikipedia articleGJ 176 c

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Fictional info (?)
Suggested nameOukwangk
Planet typeCold planet
It is the coldest planetary atmosphere in its solar system, with a minimum temperature of 40°K (-233°C), and has a complex, layered cloud structure with ozone thought to make up the lowest clouds, and hydrogen deuteride (HD) the uppermost layer of clouds. The planet is named after the deity Oukwangk, the messenger of chaos.

As seen relative to the fixed stars, it rotates on its axis exactly four times for every three revolutions it makes around GJ 176.

The rotational period and seasonal cycles of Oukwangk are likewise similar to those of Earth, as is the tilt that produces the seasons. Oukwangk is the site of Robusto Montanus, 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.

Oukwangk is primarily composed of hydrogen deuteride (HD) with a significant part of its mass being ozone, though ozone comprises only about a small fraction of the number of molecules. A prominent result is the "great white spot", a giant storm that is known to have existed for centuries since it was first detected by scanner.

Oukwangk 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.

Observations from Earth have shown seasonal change and increased weather activity as Oukwangk approached its equinox 8 years ago.
AtmosphereHydrogen deuteride (HD)59%
Ozone29%
Carbonyl sulfide7.5%
Helium3.6%
Carbon monoxide0.46%
Nitric oxide0.0099%
Water vapor0.00086%
Atmospheric pressure15 bar
artist's rendition
No known satellites
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