66 Cancer ( lat. 66 Cancri ) - a double or multiple star , which is located in the constellation of Cancer and is 510 light-years away from Earth. The main component, 66 Cancer A , is a white star of class A , the main sequence dwarf whose luminosity is slightly less than 100 times the solar one. The star’s mass is almost 4 times the solar mass, the radius is 3.7 times the solar one. Surface temperature is 9450 ± 50 Kelvin.
| 66 Cancer | |||
|---|---|---|---|
| Star | |||
| Observational data ( Epoch J2000.0) | |||
| Right ascension | |||
| Declination | |||
| Distance | 510 sv. years (156.4 pc ) | ||
| Visible magnitude ( V ) | 5.82 | ||
| Constellation | Crayfish | ||
| Astrometry | |||
| Radial velocity ( R v ) | -12.8 km / s | ||
| Proper motion (μ) | RA: 0.30 mas per year Dec: 0.72 mas per year | ||
| Parallax (π) | 6.40 ± 0.90 mas | ||
| Absolute magnitude (V) | -0.15 | ||
| Specifications | |||
| Spectral class | A2 V | ||
| physical characteristics | |||
| Weight | 3.9 M ☉ | ||
| Radius | 3.7 R ☉ | ||
| Temperature | 9450 ± 50 K | ||
| Luminosity | 98.2 L ☉ | ||
| Metallicity | [M / H] =? | ||
| |||
| Information in databases | |||
| SIMBAD | |||
The system is approaching the solar system at a speed of 13 km / s.
See also
- List of stars in the constellation of Cancer
Links
- Astronomical database SIMBAD (eng.)
- Star catalog VizieR (English)