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Space Astro
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Info for exoplanet "Gyopyu"
| Scientific (actual) data |
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| Planet | Kepler-1438 b |
| Planet status | Confirmed |
| Radius | 0.084 |
| Orbital period | 2.31942 |
| Discovered | 2016 |
| Updated | 2021-02-05 |
| Tconj | 2454960 |
| Publication | Announced on a website |
| Detection type | Primary Transit |
| Alternate names | 2MASS J19170955+4040540 b, K03141.01, KIC 5440317 b, KOI-3141 b, KOI-3141.01, WISE J191709.45+404054.2 b |
| Star name | Kepler-1438 |
| Right ascension | 289.29° |
| Declination | 40.68° |
| Mag j | 13.513 |
| Mag h | 13.242 |
| Mag k | 13.136 |
| Star distance | 866 |
| Star metallicity | 0.2 |
| Star mass | 0.97 |
| Star radius | 0.96 |
| Star age | 5.37 |
| Star temperature | 5530 |
| Star alternate names | 2MASS J19170955+4040540, KIC 5440317, KOI-3141, WISE J191709.45+404054.2 |
| Wikipedia article | Kepler-1438 b |
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| Fictional info (?) |
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| Suggested name | Gyopyu |
| Planet type | Cold planet |
| Gyopyu has been known to astronomers since the medieval. For this reason, scientists often classify Gyopyu and Ryaya Nyuya Ga as "cold planets" to distinguish them from the other planets. The planet is named after the deity Gyopyu, the demon of love and beauty.
Gyopyu is gravitationally locked with Kepler-1438 in a 4:3 spin-orbit resonance, and rotates in a way that is unique in its solar system. As seen from Kepler-1438, in a frame of reference that rotates with the orbital motion, it appears to rotate only once every two years.
It may have had molecular hydrogen oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.
The latest probe to visit the planet is Pointer, which entered into orbit around Gyopyu after a problematic ride. |
| Atmosphere | Argon | 97% |
| Ammonium hydrosulfide (NH4SH) | 2.3% |
| Molecular hydrogen | 0.052% |
| Hydrogen peroxide | 0.048% |
| Sulfur dioxide | 0.03% |
| Carbon monoxide | 0.00095% |
| Atmospheric pressure | 6 bar |
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| No known satellites |
| Google search for Gyopyu |
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Website by Joachim Michaelis
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