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Space Astro
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Info for exoplanet "Ryumi"
| Scientific (actual) data |
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| Planet | Kepler-89 e |
| Planet status | Confirmed |
| Planet mass | 0.11 |
| Radius | 0.585 |
| Orbital period | 54.3203 |
| Semi major axis | 0.3046 |
| Orbit eccentricity | 0.019 |
| Inclination | 89.76 |
| Discovered | 2013 |
| Updated | 2021-03-08 |
| Tconj | 2454990 |
| Tzero tr | 2454990 |
| Impact parameter | 0.18 |
| K | 4.5 |
| Temperature (kelvin) | 584 |
| Publication | Published in a refereed paper |
| Detection type | Primary Transit |
| Alternate names | 2MASS J19491993+4153280 e, K00094.03, KIC 6462863 e, KOI-94 A e, KOI-94.03, Kepler-89 A e, Kepler-89 e, WISE J194919.96+415327.9 e, KOI-94 e |
| Star name | KOI-94 |
| Right ascension | 297.33° |
| Declination | 41.89° |
| Mag v | 12.4 |
| Mag j | 11.218 |
| Mag h | 10.957 |
| Star distance | 483.65 |
| Star metallicity | 0.023 |
| Star mass | 1.28 |
| Star radius | 1.52 |
| Star age | 3.16 |
| Star temperature | 6182 |
| Star alternate names | KOI-94, 2MASS J19491993+4153280, KIC 6462863, KOI-94 A, Kepler-89, Kepler-89 A, WISE J194919.96+415327.9 |
| Wikipedia article | Kepler-89 e |
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| Fictional info (?) |
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| Suggested name | Ryumi |
| Planet type | Small cold gas planet |
| It is named after the deity Ryumi, the god of good fortune.
As seen relative to the fixed stars, it rotates on its axis exactly four times for every three revolutions it makes around KOI-94.
The polar regions are constantly below 261°K (-12°C).
As one of the most noticeable objects in the sky, Ryumi has been a major fixture in native culture for as long as records have existed.
Ryumi is the site of Celestium Peak, the most active volcano and second-highest known mountain in its solar system, and of Valles Marineris, one of the largest canyons in its solar system.
The volume of water ice in the south polar ice cap, if melted, would be sufficient to cover the entire planetary surface to a depth of 7 meters. The volume of water detected has been estimated to be equivalent to the volume of water in the Black Sea.
Ryumi can easily be seen from Surya Bya with the naked eye, as can its whiteish coloring. |
| Atmosphere | Hydrogen deuteride (HD) | 47% |
| Ethane | 26% |
| Carbonyl sulfide | 26% |
| Oxygen | 1.2% |
| Ammonia | 0.00079% |
| Atmospheric pressure | 0.05 bar |
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| No known satellites |
| Google search for Ryumi |
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Website by Joachim Michaelis
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