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Space Astro
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Info for exoplanet "Herca"
| Scientific (actual) data |
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| Planet | Kepler-812 b |
| Planet status | Confirmed |
| Radius | 0.317 |
| Orbital period | 10.1172 |
| Discovered | 2016 |
| Updated | 2021-02-05 |
| Tconj | 2454970 |
| Publication | Announced on a website |
| Detection type | Primary Transit |
| Alternate names | 2MASS J19152526+4812307 b, K01309.01, KIC 10854768 b, KOI-1309 b, KOI-1309.01, WISE J191525.26+481230.6 b |
| Star name | Kepler-812 |
| Right ascension | 288.86° |
| Declination | 48.21° |
| Mag j | 13.006 |
| Mag h | 12.755 |
| Mag k | 12.832 |
| Star distance | 1482 |
| Star metallicity | 0.02 |
| Star mass | 1.45 |
| Star radius | 1.71 |
| Star age | 1.66 |
| Star temperature | 6761 |
| Star alternate names | 2MASS J19152526+4812307, KIC 10854768, KOI-1309, WISE J191525.26+481230.6 |
| Wikipedia article | Kepler-812 b |
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| Fictional info (?) |
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| Suggested name | Herca |
| Planet type | Cold planet |
| Herca is the only habitable planet orbiting Kepler-812 and one of the largest in its solar system. The interior of Herca is mainly composed of ices and stone. It is named after the deity Herca, the goddess of chaos.
As seen relative to the fixed stars, it rotates on its axis exactly two times for every two revolutions it makes around Kepler-812.
Two spacecraft have visited Herca: Wayfinder 5 flew by 21 years ago; and Messenger, launched 24 years ago, orbited Herca over 75 times in four years before exhausting its pwoer source and crashing into the planet's atmosphere 5 years later.
Optical ground-based telescopes are typically limited to resolving features about 150 kilometers across when Herca is closest because of Earth's atmosphere. |
| Atmosphere | Ammonium hydrosulfide (NH4SH) | 52% |
| Nitrogen | 36% |
| Hydrogen chloride | 9.2% |
| Hydrogen deuteride (HD) | 1.7% |
| Helium | 1.1% |
| Neon | 5.0E-6% |
| Water vapor | 3.0E-6% |
| Atmospheric pressure | 0.0016 bar |
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| Moon | Nolyke | Huge potato shaped crater-filled planetoid |
| Laoste'ton | Very small irregular rocky comet |
| Araophe | Large potato shaped rocky moon |
| Rionkivi Tepros | Large round rocky planetoid |
| Nomebeqeq | Huge almost round rocky comet |
| Mariaka | Huge irregular oceanic asteroid |
| Phocisco Delia | Large almost round rocky moon |
| Orix Tungr | Medium-sized round gaseous moon |
| Google search for Herca |
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Website by Joachim Michaelis
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