HD 195019

HD 195019
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Delphinus
Right ascension 20h 28m 18.6363s
Declination +18° 46′ 10.188″
Apparent magnitude (V) 6.91
Distance 65 ly
(20 pc)
Spectral type G3IV-V
Other designations
BD+18° 4505, GC 28482, GCRV 12790, HIP 100970, LTT 15981, NLTT 49312, SAO 106138
Database references
SIMBAD data
Extrasolar Planets
Encyclopaedia		 data

HD 195019 is a star system in the constellation of Delphinus. Star B is located approximately 150 AU from Star A. This star system is located 65 light years or 20 parsecs or 0.617 exameters away from the Sun, Earth and Solar System. It is a yellow dwarf or subgiant [G3IV-V]. The useful catalogue numbers are HIP 100970, and SAO 106138.

Contents

Planetary system

In 1998, a planet was discovered at Lick Observatory, orbiting around Star A.[1]

The HD 195019 system[2]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity
b >3.69 ± 0.30 MJ 0.1388 ± 0.0080 18.20132 ± 0.00039 0.0138 ± 0.0044

See also

References

  1. ^ Fischer et al.; Marcy, Geoffrey W.; Butler, R. Paul; Vogt, Steven S.; Apps, Kevin (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. http://www.journals.uchicago.edu/doi/full/10.1086/316304. 
  2. ^ Butler et al.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode 2006ApJ...646..505B. doi:10.1086/504701. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html. 

External links

Coordinates: 20h 28m 18.6363s, +18° 46′ 10.188″