42 Cancer ( lat. 42 Cancri ) - a star that is located in the constellation Cancer . It is part of the open star cluster of the Nursery . 42 Cancer is a hot white giant of class A , remote from the Earth at a distance of 506 light years and has a magnitude of +6.82, that is, it is invisible to the naked eye, but can be seen through binoculars.
| 42 Cancer | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0) | |||
| Right ascension | |||
| Declination | |||
| Distance | 506 St. years (155 pc ) | ||
| Visible magnitude ( V ) | 6.82 | ||
| Constellation | Crayfish | ||
| Astrometry | |||
| Radial velocity ( R v ) | +31 km / s | ||
| Own movement (μ) | RA: -34.26 mas per year Dec: -11.96 mas per year | ||
| Parallax (π) | 6.44 ± 0.93 mas | ||
| Absolute magnitude (V) | 0.86 | ||
| Specifications | |||
| Spectral class | A9 III | ||
| physical characteristics | |||
| Weight | 2.7 M ☉ | ||
| Radius | 3.6 R ☉ | ||
| Temperature | 7550 ± 50 K | ||
| Luminosity | 38.7 L ☉ | ||
| Metallicity | [M / H] =? | ||
| |||
| Database Information | |||
| SIMBAD | |||
Features
42 Cancer is 2.7 times more massive than the Sun , its radius is 3.6 times greater than the Sun. The star shines 38.7 times more powerful than the Sun, the surface temperature is 7550 ± 50 Kelvin. The radial velocity of 42 Cancer has a value of +31 km / s, which indicates that the star is moving away from the solar system at a speed of 31 km / s.
See also
- Cancer constellation star list