HD 195019
HD 195019 (HIP 100970, SAO 106138) is a star system in the constellation of Delphinus. Star B is located approximately 150 AU from Star A. This star system is located 123 light-years (38 parsecs) away from the Sun, Earth and Solar System. HD 195019 A is a yellow dwarf or subgiant [G3IV-V]. Star B is a smaller and dimmer orange dwarf of the K3 type. [2]
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Delphinus |
| Right ascension | 20h 28m 18.6367s[1] |
| Declination | +18° 46′ 10.1799″[1] |
| Apparent magnitude (V) | 6.91 |
| Characteristics | |
| Spectral type | G3IV-V |
| Astrometry | |
| Proper motion (μ) | RA: 349.644±0.058[1] mas/yr Dec.: −56.571±0.059[1] mas/yr |
| Parallax (π) | 26.5188 ± 0.0467[1] mas |
| Distance | 123.0 ± 0.2 ly (37.71 ± 0.07 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
Planetary system
In 1998, a planet was discovered at Lick Observatory, orbiting around Star A.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >3.69 ± 0.30 MJ | 0.1388 ± 0.0080 | 18.20132 ± 0.00039 | 0.0138 ± 0.0044 | — | — |
gollark: It was born in dragon *cave*.
gollark: Oh, I don't mean it has yet, just that since I gave it views fast and it's evil it will.
gollark: My thing will inevitably get sick in 10 minutes.
gollark: I wonder why some people are fine.
gollark: Inevitably it'll now get horribly sick.
References
- Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- http://stars.astro.illinois.edu/sow/hd195019.html
- 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.
- Butler, R. P.; 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.
External links
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