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Space Astro
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Info for exoplanet "Shyou"
| Scientific (actual) data |
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| Name | 2MASS J1559+4403 Ab |
| Planet status | Confirmed |
| Mass sini | 24.5 |
| Orbital period | 13.976 |
| Semi major axis | 0.0938 |
| Orbit eccentricity | 0.35 |
| Discovered | 2024 |
| Updated | 2024-08-30 |
| Omega | 148 |
| K | 11000 |
| Publication | Published in a refereed paper |
| Detection type | Radial Velocity |
| Mass measurement type | Radial Velocity |
| Alternate names | 2MASS J155947+440359 Ab |
| Star name | 2MASS J1559+4403 A |
| Right ascension | 239.95° |
| Declination | 44.07° |
| Mag v | 11.8 |
| Star distance | 35 |
| Star mass | 0.54 |
| Star sp type | M2.0V |
| Star age | 0.125 |
| Star alternate names | 2MASS J155947+440359 |
| Wikipedia article | 2MASS J1559+4403 Ab |
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| Fictional info (?) |
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| Suggested name | Shyou |
| Planet type | Cold planet |
| Having almost no atmosphere to retain heat, it has surface temperatures that vary diurnally more than on any other planet in its solar system, ranging from 70°K (-203°C) at night to 875°K (602°C) during the day across the equatorial regions.
It has the densest atmosphere of the cold planets, consisting primarily of oxygen.
It was the one of the first exoplanets visited by a spacecraft, and one of the first to be successfully landed on. |
| Atmosphere | Oxygen | 63% |
| Argon | 13% |
| Carbonyl sulfide | 8.8% |
| Nitrogen | 5.8% |
| Nitric oxide | 4.9% |
| Hydrogen deuteride (HD) | 3.2% |
| Ethane | 0.54% |
| Sulfur dioxide | 0.057% |
| Carbon dioxide | 0.048% |
| Atmospheric pressure | 0.001 bar |
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| No known satellites |
| Google search for Shyou |
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Website by Joachim Michaelis
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