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Space Astro
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Info for exoplanet "Mategyo'gi"
| Scientific (actual) data |
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| Name | HD 90156 b |
| Planet status | Confirmed |
| Mass sini | 0.057 |
| Orbital period | 49.77 |
| Semi major axis | 0.25 |
| Orbit eccentricity | 0.31 |
| Angular distance | 0.006313 |
| Discovered | 2009 |
| Updated | 2010-10-05 |
| Omega | 113 |
| Publication | Submitted to a professional journal |
| Detection type | Radial Velocity |
| Star name | HD 90156 |
| Right ascension | 155.98° |
| Declination | -29.65° |
| Mag v | 6.95 |
| Star distance | 39.6 |
| Star metallicity | -0.24 |
| Star mass | 0.84 |
| Star sp type | G5V |
| Star age | 4.4 |
| Star temperature | 5599 |
| Wikipedia article | HD 90156 b |
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| Fictional info (?) |
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| Suggested name | Mategyo'gi |
| Planet type | Cold planet |
| It may have had hydrogen chloride oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect. The hydrogen chloride has probably photodissociated, and the free ammonium hydrosulfide (NH4SH) has been swept into interplanetary space by the solar wind because of the lack of a ammonia layer. |
| Atmosphere | Ammonium hydrosulfide (NH4SH) | 88% |
| 2H2O | 4.2% |
| Hydrogen chloride | 3.4% |
| Ammonia | 2.9% |
| Nitric oxide | 0.61% |
| Atmospheric pressure | 90 bar |
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| No known satellites |
| Google search for Mategyo'gi |
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Website by Joachim Michaelis
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