HD 195019 b

(Redirected from HD 195019 Ab)

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]

HD 195019 b
Discovery
Discovered byFischer et al.[1]
Discovery siteLick Observatory
Discovery date1998
Radial Velocity
Orbital characteristics
Apastron0.1407 AU (21,050,000 km)
Periastron0.1369 AU (20,480,000 km)
0.1388 ± 0.008 AU (20,760,000 ± 1,200,000 km)
Eccentricity0.014 ± 0.0044
18.20163 ± 0.0004 d
0.4983248 y
83.24
2,411,015 ± 1.2
322 ± 20
Semi-amplitude272.3 ±1.4
StarHD 195019

See also

edit

References

edit
  1. ^ a b 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. S2CID 17980987.
edit