BD +63°238

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BD +63°238
Stellar characteristics
Right ascension (Epoch J2000)01h 47m 44.80s
Declination (Epoch J2000)+63° 51' 09.00"
Spectral typeK0 V
Distance from Sol32.5 ly
Other designationsHR 511, Gl 75, Hip 8362, HD 10780, SAO 11983, LHS 1297, LTT 10619, LFT 162.
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BD +63°238 is located about 32.5 light-years away from our Sun, Sol, in the constellation Cassiopeia, the Lady of the Chair. The star may be visible to many Humans without a telescope. The star is a main-sequence orange-red dwarf star of spectral and luminosity type K0 V. It may have around 92 percent of Sol's mass, 85 percent of its diameter[1], and 46 percent of its luminosity. Deficient in ultraviolet light, the star appears to be 2.3 times as enriched as Sol in elements heavier than hydrogen ("metals") based on its abundance of iron, and BD +63°238's space motion is characteristic of a young disk star[2].

According to the Yale Bright Star Catalogue's notes entry for HR 511, BD +63°238 has an astrometric companion which was unresolved by speckle interferometry.

The distance from BD +63°238 where an Earth-type planet would be "comfortable" with liquid water is centered around only 0.681 AU. This would be just inside the orbital distance of Venus in the Solar System, where a planet probably would have an orbital period around 213 days or over half of an Earth year.

(Data from


  1. (Johnson and Wright, 1983, page 649)
  2. (J.B. Hearnshaw, 1974, page 279)