80 Cancer ( lat. 80 Cancri ) - a double star , which is located in the constellation Cancer at a distance of 470 light years. The main component, 80 of Cancer A , is a white hot Class A star whose luminosity is almost 32 times that of the Sun. The mass of the star is 2.6 times more massive than the Sun , the radius is 1.9 times greater than the solar. The surface temperature is hot up to 10,000 Kelvin. The system is very slowly moving away from the Earth, at a speed of 1 km / s.
80 cancer | |||
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Star | |||
Observational data ( Age J2000.0) | |||
Right ascension | |||
Declination | |||
Distance | 470 St. years (144.1 pc ) | ||
Visible magnitude ( V ) | 6.86 | ||
Constellation | Crayfish | ||
Astrometry | |||
Radial velocity ( R v ) | +1 km / s | ||
Own movement (μ) | RA: -35.68 mas per year Dec: -22.50 mas per year | ||
Parallax (π) | 6.94 ± 0.92 mas | ||
Absolute magnitude (V) | +1.07 | ||
Specifications | |||
Spectral class | A0 | ||
physical characteristics | |||
Weight | 2.6 M ☉ | ||
Radius | 1.9 R ☉ | ||
Temperature | 9950 ± 50 K | ||
Luminosity | 31.9 L ☉ | ||
Metallicity | [M / H] =? | ||
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Database Information | |||
SIMBAD | |||
See also
- Cancer constellation star list