HD 195019 b
HD 195019 b is an exoplanet orbiting around HD 195019 in the binary star system. It has a minimum mass of 3.7 MJ. It orbits very close to the star. Like many planets at close distance, its orbit is circular, even more circular or less eccentric than Earth. It takes 437 hours to orbit with velocity of 83.24 kilometers per second.[1]
| Discovery | |
|---|---|
| Discovered by | Fischer et al.[1] |
| Discovery site | Lick Observatory |
| Discovery date | 1998 |
| Radial Velocity | |
| Orbital characteristics | |
| Apastron | 0.1407 AU (21,050,000 km) |
| Periastron | 0.1369 AU (20,480,000 km) |
| 0.1388 ± 0.008 AU (20,760,000 ± 1,200,000 km) | |
| Eccentricity | 0.014 ± 0.0044 |
| 18.20163 ± 0.0004 d 0.4983248 y | |
Average orbital speed | 83.24 |
| 2,411,015 ± 1.2 | |
| 322 ± 20 | |
| Semi-amplitude | 272.3 ±1.4 |
| Star | HD 195019 |
References
- Fischer, Debra A.; et al. (1999). "Planetary Companions around Two Solar-Type Stars: HD 195019 and HD 217107". Publications of the Astronomical Society of the Pacific. 111 (755): 50–56. arXiv:astro-ph/9810420. Bibcode:1999PASP..111...50F. doi:10.1086/316304.
External links
- "HD 195019". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-11-01.
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