34 Cancer ( lat. 34 Cancri ) - star , which is located in the constellation of Cancer . The distance to Earth is about 540 light years. The apparent magnitude 34 of Cancer is +6.48, that is, it cannot be seen with the naked eye, but it can be seen through binoculars. This is a hot white dwarf of spectral class A main sequence .
| 34 Cancer | |||
|---|---|---|---|
| Star | |||
| Observational data ( Epoch J2000.0) | |||
| Right ascension | |||
| Declination | |||
| Distance | 540.6 sv. years (165.83 pc ) | ||
| Visible magnitude ( V ) | +6.48 | ||
| Constellation | Crayfish | ||
| Astrometry | |||
| Radial velocity ( R v ) | -11 km / s | ||
| Proper motion (μ) | RA: 5.89 mas per year Dec: -6.22 mas per year | ||
| Parallax (π) | 6.03 ± 0.89 mas | ||
| Absolute magnitude (V) | +0.38 | ||
| Specifications | |||
| Spectral class | A1 V | ||
| physical characteristics | |||
| Weight | 3.2 M ☉ | ||
| Radius | 2.75 R ☉ | ||
| Temperature | 9700 ± 50 K | ||
| Luminosity | 60.3 L ☉ | ||
| Metallicity | [M / H] =? | ||
| |||
| Information in databases | |||
| SIMBAD | |||
Characteristics
The radius of 21 Cancer is 2.75 times the sun. Massive than the sun 3.2 times. The luminosity is 60 times the solar, the surface temperature is about 9700 Kelvin. The star is approaching the solar system at a speed of 11 km / s.
Links
- Astronomical database SIMBAD (eng.)
- Star catalog VizieR (English)