HIP 41378 f
HIP 41378 f (also known as EPIC 211311380 f) is an exoplanet orbiting around the F-type star HIP 41378. It is the outermost planet of its system. It has an anomalously large radius (9.2 R🜨) for a planet of its size and temperature, therefore the radius may actually be that of an optically thick ring system. It is located within the optimistic habitable zone of its parent star. No atmospheric signatures were found as in 2022, further reinforcing the hypothesis of opaque circumplanetary rings.
| Discovery | |
|---|---|
| Discovery date | June 2016 |
Detection method | Transit |
| Orbital characteristics | |
Semi-major axis | 1.37±0.02 au |
Orbital period (sidereal) | 542.07975±0.00014 |
| Star | HIP 41378 |
| Physical characteristics | |
Mean radius | 9.2 ± 0.1 R🜨 |
| Mass | 12 ± 3 ME |
Mean density | 0.09 ± 0.02 g cm−3 |
| Temperature | Teq: 294 K (21 °C; 70 °F) |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.