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Space Astro
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Info for exoplanet "Sune"
| Scientific (actual) data |
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| Name | Kepler-421 Ab |
| Planet status | Confirmed |
| Radius | 0.371 |
| Orbital period | 704.198 |
| Semi major axis | 1.219 |
| Orbit eccentricity | 0.041 |
| Inclination | 89.965 |
| Discovered | 2014 |
| Updated | 2024-07-31 |
| Omega | 160 |
| Tconj | 2455330 |
| Impact parameter | 0.21 |
| Temperature (kelvin) | 185 |
| Publication | Published in a refereed paper |
| Detection type | Primary Transit |
| Radius measurement type | Primary Transit |
| Alternate names | WISE J185301.62+450515.7 b, KOI-1274 bb, KOI-1274.01 b, K01274.01b, KIC 8800954 bb, 2MASS J18530163+4505159 bb |
| Star name | Kepler-421 A |
| Right ascension | 283.26° |
| Declination | 45.09° |
| Mag v | 13.61 |
| Mag j | 12.009 |
| Mag h | 11.619 |
| Mag k | 11.53 |
| Star distance | 348.558 |
| Star metallicity | -0.271 |
| Star mass | 0.902 |
| Star radius | 0.8117 |
| Star sp type | G9/K0V |
| Star age | 4 |
| Star temperature | 5265.34 |
| Star alternate names | KOI-1274, WISE J185301.62+450515.7, KIC 8800954, 2MASS J18530163+4505159 |
| Wikipedia article | Kepler-421 Ab |
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| Fictional info (?) |
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| Suggested name | Sune |
| Planet type | Cold planet |
| The krypton has probably photodissociated, and the free ammonia has been swept into interplanetary space by the solar wind because of the lack of a planetary magnetic field.
The smooth Borealis basin in the northern hemisphere covers 25 percent of the planet and may be a giant impact feature. |
| Atmosphere | Ammonia | 39% |
| Xenon | 28% |
| Krypton | 13% |
| Hydrogen | 11% |
| Nitrogen | 9.2% |
| Water vapor | 0.011% |
| Sulfur dioxide | 0% |
| Atmospheric pressure | 60 bar |
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| No known satellites |
| Google search for Sune |
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Website by Joachim Michaelis
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