| Fictional info (?) |
| Suggested name | Jaibyo |
| Planet type | Small hot gas planet |
| As seen relative to the fixed stars, it rotates on its axis exactly four times for every three revolutions it makes around K2-378.
Its north and south poles, therefore, lie where most other planets have their equators. |
| Atmosphere | Xenon | 56% |
| Nitrogen | 40% |
| Argon | 1.5% |
| Sulfur dioxide | 1.1% |
| Formaldehyde | 0.13% |
| Krypton | 0.098% |
| Carbonyl sulfide | 4.0E-6% |
| Atmospheric pressure | 19 bar |
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| Moon | Byosoyu | Small slightly egg-shaped ice moon |
| Nupu-kyo | Small round gaseous moon |
| Sase Borya-chu | Huge round gaseous moon |
| Goko Pyuchi Nuhyo | Medium-sized slightly egg-shaped gaseous comet |
| Byapi-gyapi-rya | Huge round rocky comet |
| Woryo Me | Large round ice asteroid |
| Shiraryu Zaryu | Large potato shaped rocky planetoid |
| Kehi Dapyo | Large irregular gaseous moon |
| Ponyacha Rucha | Small slightly egg-shaped ice asteroid |
| Nezorina Kyu | Small potato shaped rocky comet |
| Taizo-shu | Huge round oceanic asteroid |
| Zosunyoo | Small almost round oceanic comet |
| Rika Yapo-pigo Ha | Large almost round oceanic asteroid |
| Saryu Sho | Very small round rocky asteroid |
| Satomoa Nuha | Very small almost round oceanic moon |
| Sonki Hyu | Very small slightly egg-shaped oceanic moon |
| Jaki-moshu | Small potato shaped ice asteroid |
| Surotsu Mu | Very small potato shaped ice asteroid |
| Ryugonyu | Small slightly egg-shaped rocky planetoid |
| Nyoza | Huge potato shaped gaseous asteroid |
| Buhaoda-kya | Very small round oceanic moon |
| Zaaumyo Puishi | Small almost round gaseous asteroid |
| Bimyoga-myori | Huge round ice moon |
| Ryomonya | Very small round crater-filled planetoid |
| Sucho | Very small irregular rocky moon |
| Gyagu Nemi | Very small almost round rocky asteroid |
| Shusumyu Bo | Huge slightly egg-shaped ice asteroid |
| Myabyo Be | Huge round ice asteroid |
| Purikomya Myo | Medium-sized slightly egg-shaped gaseous asteroid |
| Google search for Jaibyo |