Gliese 414 Ac
Gliese 414 Ac, or GJ 414 Ac, is an exoplanet orbiting Gliese 414 A, a K-type main-sequence star located 39 light-years from Earth, in the constellation Ursa Major. It is classified as a super-Neptune exoplanet, being at least 56 times more massive than the Earth and about 9 times larger. Gliese 414 Ac orbits its parent star at a distance of 1.43 astronomical units and completes one revolution around it every 2 years and 18 days. It is one of the two planets orbiting Gliese 414 A, the another is Gliese 414 Ab, a sub-Neptune.
Artistical representation of a super-Neptune exoplanet. | |
| Discovery | |
|---|---|
| Discovered by | Dedrick et al. |
| Discovery date | 2020 |
Detection method | Radial velocity |
| Designations | |
Alternative names | HD 97101 Ac, HIP 54646 c |
| Orbital characteristics | |
Semi-major axis | 1.43±0.06 AU |
| Eccentricity | 0.093+0.1 −0.064 |
Orbital period (sidereal) | 748.3+1.3 −1.2 d |
| 74°+74° −200° | |
| Star | GJ 414 A |
| Physical characteristics | |
Mean radius | 8.78+4.03 −2.66 R🜨 (0.783+0.359 −0.237 RJ) |
| Mass | 56.27+10.43 −9.91 M🜨 (0.177+0.03 −0.031 MJ) |
| Temperature | 123.3±13.2 K (−149.7 °C (−237.5 °F)) |
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