| Discovery | |
|---|---|
| Discovered by | W. M. Keck Observatory |
| Discovery date | 30 June 2016 |
| radial velocity | |
| Orbital characteristics | |
| 0.3351 (± 0.0015)[1] AU | |
| Eccentricity | 0.079+0.089 −0.066[1] |
| 75.765+0.058 −0.056[1] d | |
| 2456277.6 ± 2.7[1] | |
| 81+45 −49[1] | |
| Star | HD 164922 |
| Physical characteristics | |
| ~3.5 R🜨 | |
| Temperature | 400 K (127 °C; 260 °F)[1] |
HD 164922 c is an exoplanet orbiting the star HD 164922 about 72 light-years from Earth in the constellation Hercules. The exoplanet was found by using the radial velocity method, from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.
- ^ a b c d e f Fulton, Benjamin J.; Howard, Andrew W.; Weiss, Lauren M.; Sinukoff, Evan; Petigura, Erik A.; Isaacson, Howard; Hirsch, Lea; Marcy, Geoffrey W.; Henry, Gregory W.; Grunblatt, Samuel K.; Huber, Daniel; Kaspar von Braun; Boyajian, Tabetha S.; Kane, Stephen R.; Wittrock, Justin; Horch, Elliott P.; Ciardi, David R.; Howell, Steve B.; Wright, Jason T.; Ford, Eric B. (2016). "Three Temperate Neptunes Orbiting Nearby Stars". The Astrophysical Journal. 830 (1): 46. arXiv:1607.00007. Bibcode:2016ApJ...830...46F. doi:10.3847/0004-637X/830/1/46. S2CID 36666883.
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