HD 119850 is a single star located in the constellation Bootes at a distance of about 17.6 light years from the Sun. This is one of the stars closest to us .
| HD 119850 | |||
|---|---|---|---|
| Star | |||
 HD 119850 by the artist. | |||
| Research history | |||
| Discoverer | Joseph Laland | ||
| opening date | 1801 year | ||
| Observational data ( Age J2000.0 ) | |||
| Type of | Single star | ||
| Right ascension | |||
| Declination | |||
| Distance | 17.6 ± 0.26 St. years (5.42 ± 0.08 pc ) [1] | ||
| Visible magnitude ( V ) | 8.47 [1] | ||
| Constellation | Bootes | ||
| Astrometry | |||
| Radial velocity ( R v ) | 15.3 [2] km / s | ||
| Own movement (μ) | RA: 1778.45 [2] Dec: -1456.44 [2] | ||
| Parallax (π) | 185.49 ± 1.10 [2] mas | ||
| Absolute magnitude (V) | 9.80 [1] | ||
| Specifications | |||
| Spectral class | M4.0V [2] | ||
| Color Index ( B - V ) | 1.44 [1] | ||
| Color Index ( U - B ) | 1.10 [1] | ||
| Variability | Flashing [2] | ||
| physical characteristics | |||
| Weight | 0.53 [4] M ☉ | ||
| Temperature | 3000 ± 100 K | ||
| Luminosity | 0.01 L ☉ | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| ARICNS | data | ||
| Sources: [2] [1] | |||
Features
HD 119850 - a dim star of 8.47 magnitude, not visible to the naked eye. This is a relatively cold red dwarf with a mass equal to 53% of the mass of the Sun [4] . The star was discovered by Joseph Lalande , a French astronomer, and for the first time its data were published in 1801 , so in astronomical literature you can find it under the name Lalande 25372 . HD 119850 is a flashing star , that is, it spontaneously, non-periodically increases its own luminosity several times. No planets have yet been detected in this system.
See also
- List of stars of the constellation Bootes
- List of nearby stars
Notes
- ↑ 1 2 3 4 5 6 ARICNS (English) . - HD 119850 in the ARICNS database. Date of treatment December 3, 2011.
- ↑ 1 2 3 4 5 6 7 SIMBAD (English) . - HD 119850 in the SIMBAD database . Date of treatment December 3, 2011.
- ↑ 1 2 3 4 Gaia Data Release 2 - 2018.
- ↑ 1 2 THE ONE HUNDRED NEAREST STAR SYSTEMS. (eng.) . RECONS (Research Consortium On Nearby Stars) (01 January 2010). Date of treatment December 3, 2011. Archived July 31, 2012.