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Space Astro
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Info for exoplanet "Kyokyo Wo"
| Scientific (actual) data |
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| Name | K2-18 c |
| Planet status | Confirmed |
| Mass sini | 0.02363 |
| Orbital period | 8.962 |
| Semi major axis | 0.06 |
| Orbit eccentricity | 0.47 |
| Discovered | 2017 |
| Updated | 2021-02-05 |
| Tconj | 2457260 |
| K | 4.63 |
| Temperature (kelvin) | 363 |
| Publication | Published in a refereed paper |
| Detection type | Radial Velocity |
| Mass measurement type | Radial Velocity |
| Alternate names | 2MASS J11301450+0735180 c, EPIC 201912552 c, WISE J113014.45+073516.8 c |
| Star name | K2-18 |
| Right ascension | 172.56° |
| Declination | 7.59° |
| Mag v | 13.5 |
| Mag j | 9.763 |
| Mag h | 9.135 |
| Star distance | 38.07 |
| Star metallicity | 0.12 |
| Star mass | 0.36 |
| Star radius | 0.41 |
| Star sp type | M2.5 V |
| Star temperature | 3457 |
| Star alternate names | EPIC 201912552, 2MASS J11301450+0735180, WISE J113014.45+073516.8 |
| Wikipedia article | K2-18 c |
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| Fictional info (?) |
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| Suggested name | Kyokyo Wo |
| Planet type | Warm planet |
| It may have had neon oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.
Because of its rapid rotation, the planet's shape is that of an oblate spheroid (it has a slight but noticeable bulge around the equator). |
| Atmosphere | Helium | 30% |
| Water vapor | 22% |
| Neon | 19% |
| Hydrogen peroxide | 15% |
| Ammonium hydrosulfide (NH4SH) | 11% |
| Formaldehyde | 2.4% |
| Carbonyl sulfide | 0.61% |
| Ammonia | 0.12% |
| Sulfur dioxide | 0.033% |
| Atmospheric pressure | 22 bar |
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| No known satellites |
| Google search for Kyokyo wo |
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Website by Joachim Michaelis
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