HD 110458 ( Bayer’s designation W CEN / w Centauri) is a star in the constellation Centaurus , its apparent magnitude is +4.66 and is located about 188.4 light years from Earth .
| HD 110458 | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000 ) | |||
| Right ascension | |||
| Declination | |||
| Distance | 188.4 ± 7.1 St. years (57.8 ± 2.2 pc ) | ||
| Visible magnitude ( V ) | 4.66 | ||
| Constellation | Centaurus | ||
| Astrometry | |||
| Radial velocity ( R v ) | −12 km / s | ||
| Own movement (μ) | RA: −123.27 mas per year Dec: −30.36 mas per year | ||
| Parallax (π) | 17.31 ± 0.65 mas | ||
| Absolute magnitude (V) | +0.85 | ||
| Characteristics | |||
| Spectral class | K0III | ||
| Color Index ( B - V ) | +1.09 | ||
| Color Index ( U - B ) | +1.01 | ||
| Variability | absent | ||
| physical characteristics | |||
| Weight | 2.7 M ☉ | ||
| Radius | 8.5 R ☉ | ||
| Temperature | 4950 ± 50 K | ||
| Luminosity | 39 L ☉ | ||
| Metallicity | |||
| |||
| Database Information | |||
| SIMBAD | |||
Features
HD 110458 - Orange giant spectral class K0, variability is absent. The mass of the star is 2.7 times that of the sun, the radius is 8.5 times that of the sun . Luminosity is 39 times more powerful than solar, the temperature is about 4950 degrees Kelvin. HD 110458 is approaching the solar system at a speed of 12 km / s.
- ↑ 1 2 3 4 Collaboration G. Gaia DR2 - 2018 .-- Vol. 1345.
- ↑ Park S., Kang W., Lee J. et al. Wilson-Bappu Effect: Extended to Surface Gravity // Astron. J. / J. G. III - IOP Publishing , 2013 .-- Vol. 146, Iss. 4. - P. 73. - ISSN 0004-6256 ; 1538-3881 - doi: 10.1088 / 0004-6256 / 146/4/73