Gliese 611
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Corona Borealis |
| Right ascension | 16h 04m 56.79s |
| Declination | +39° 09′ 23.43″ |
| Apparent magnitude (V) | 6.66/14.20 |
| Characteristics | |
| Spectral type | G8V + M4 |
| Astrometry | |
| Radial velocity (Rv) | -58.7 km/s |
| Parallax (π) | 68.87 ± 0.33 mas |
| Distance | 47.4 ± 0.2 ly (14.52 ± 0.07 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
Gliese 611 (HD 144579) is a binary star located in the constellation Corona Borealis. It is the nearest star to Earth located in that constellation.
Star System[edit]
The star system has two component stars separated by 1020 A.Us. The system is approximately 8700 million years old, and does not contain any known planets.
Its closest stellar neighbours are the white dwarf Ross 640 at 5.82 light-years, Giclas 179-43 at 5.85 light-years, BD +41°2695 at 5.88 light-years and Chi Herculis at 5.95 light-years.
A component[edit]
The main component is a class G8V star located 13.91 (46.86 light years) from Earth with a temperature of 5300K and a mass of 0.84 solar masses. The star has an absolute magnitude of 5.87.
B component[edit]
The smaller component is a M4 class star. Located slightly closer, at 13.79 parsecs, it is only 0.365 times the mass of the Sun, and has an absolute magnitude of 13.44.
References[edit]
SIMBAD. "LHS 3152 -- High proper-motion Star". Retrieved 15 February 2012.
The Sol Stations. "G stars within 100 light-years". Retrieved 11 November 2011.
Mansperger, C. "Radial Velocity Study" (PDF). Retrieved 11 November 2011.
Munari, U P ; et al. "On the accuracy of GAIA radial velocities" (PDF). Retrieved 23 November 2011.
Heidelberg University. "ARICNS-ARI Data Base for Nearby Stars". Retrieved 24 July 2011.
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