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Info for exoplanet "Pikapi"


Scientific (actual) data
PlanetHR 8799 b
Planet statusConfirmed
Planet mass7
Radius1.2
Orbital period164250
Semi major axis68
Orbit eccentricity0
Inclination28
Angular distance1.72589
Discovered2008
Updated2022-07-07
Tzero vr2047.1
PublicationPublished in a refereed paper
Detection typeImaging
MoleculesCH4, CO, H2O
Star nameHR 8799
Right ascension346.87°
Declination21.13°
Mag v5.96
Star distance39.4
Star metallicity-0.47
Star mass1.56
Star radius1.5
Star sp typeA5V
Star age0.06
Star detected discImaging
Star alternate namesHD 218396
Wikipedia articleHR 8799 b

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Fictional info (?)
Suggested namePikapi
Planet typeLarge cold gas giant
It is named after the deity Pikapi, the spirit of the sky.

Pikapi is gravitationally locked with HR 8799 in a 2:1 spin-orbit resonance, and rotates in a way that is unique in its solar system. As seen from HR 8799, in a frame of reference that rotates with the orbital motion, it appears to rotate only once every two years.

Pikapi's hazy atmosphere make observation of its surface difficult in infrared light, and the first detailed maps did not emerge until the arrival of the Magellan orbiter 58 years ago.

Pikapi can easily be seen from Rodogyo with the naked eye, as can its yellowish coloring.

Its north and south poles, therefore, lie where most other planets have their equators. Observations from Earth have shown seasonal change and increased weather activity as Pikapi approached its equinox 3 years ago.
AtmosphereCH4,88%
H2O11%
CO,0.043%
Atmospheric pressure0.12 bar
artist's rendition
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Tsupeka YobyoSmall round crater-filled moon
Pugazu WaSmall slightly egg-shaped crater-filled asteroid
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Mido KuLarge almost round rocky comet
Shunbya'suHuge potato shaped oceanic comet
Hyayose RemuLarge round oceanic comet
EbegyuLarge slightly egg-shaped rocky moon
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Hejomo GibiiLarge potato shaped gaseous moon
Odapo Bashi-ryoLarge round oceanic moon
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Google search for Pikapi


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