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Space Astro
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Info for exoplanet "Herjarn'lassa"
| Scientific (actual) data |
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| Name | WISE J0855-0714 |
| Planet status | Confirmed |
| Planet mass | 12 |
| Radius | 0.9 |
| Discovered | 2014 |
| Updated | 2025-09-09 |
| Temperature (kelvin) | 280 |
| Temp measured | 275 |
| Log g | 4.5 |
| Publication | Published in a refereed paper |
| Detection type | Imaging |
| Mass measurement type | Spectrum |
| Radius measurement type | Flux |
| Alternate names | WISE J085510.83-071442.5, WISE 0855 |
| Molecules | CH4, CO, CO2, H2O, H2S, NH3, PH3 |
| Right ascension | 133.8° |
| Declination | -7.25° |
| Star distance | 2.31 |
| Wikipedia article | WISE J0855-0714 |
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| Fictional info (?) |
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| Suggested name | Herjarn'lassa |
| Planet type | Huge cold gas giant |
| 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 130°K (-143°C) at night to 980°K (707°C) during the day across the equatorial regions. |
| Atmosphere | CO, | 69% |
| CH4, | 20% |
| PH3 | 10% |
| H2O, | 0.35% |
| NH3, | 0.034% |
| H2S, | 0.0024% |
| CO2, | 1.0E-6% |
| Atmospheric pressure | 20 bar |
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| Moon | Ijimab | Large almost round oceanic planetoid |
| Atgir Maka | Small slightly egg-shaped oceanic planetoid |
| Lapina | Medium-sized round crater-filled comet |
| Jarn Pajot-apus | Very small potato shaped rocky asteroid |
| Tiper | Huge round crater-filled comet |
| Monaha Gelmone | Medium-sized round rocky asteroid |
| Daphmir | Very small round ice comet |
| Atlianoe Kesyco | Very small almost round gaseous asteroid |
| Nesoapus | Large round rocky moon |
| Noeme Ariel'dita | Medium-sized round rocky planetoid |
| Deherpid | Medium-sized potato shaped gaseous moon |
| Mipatar-nariaka | Huge potato shaped rocky comet |
| Ronushali Higala | Very small potato shaped gaseous comet |
| Sigeculo Ber | Small potato shaped gaseous planetoid |
| Atloge | Small almost round gaseous planetoid |
| Teasete | Small irregular crater-filled asteroid |
| Calpho | Very small round crater-filled moon |
| Google search for Herjarn'lassa |
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Website by Joachim Michaelis
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