CHI DRACONIS

'Chi Draconis' (χ Dra) is a star system in the constellation Draco. This star has been called by the traditional name of ''Batentaban Borealis'', derived from the Arabic 'بطن الثعبان' ''baţn al-thubān'', meaning the Dragon's (or Serpent's) Belly.
The first companion is a yellow-white (class F) fourth-magnitude star with a mass approximately equal to that of the sun, but it is nearly twice as luminous. The second companion is an orange (class K) sixth-magnitude star, that is less massive and of lesser luminosity than the sun. In 1898 this system was reported to be a spectroscopic binary system, with an orbital period of 280.55 days. The two stars have an average separation of nearly an astronomical unit, which would disrupt the orbit of any Earth-like planet that was close enough to the primary to support liquid water. The two stars have about half the abundance of heavy elements as the Sun, but are approximately twice as old.

Contents

In Fiction

References

External links

In Fiction

: See ''Chi Draconis in fiction''.

References

★ D. N. Monin, S. N. Fabrika, G. G. Valyavin, 2000, "Magnetic survey of bright northern main sequence stars", ''A&A'' 396, 131-141.

External links

★ ARICNS

★ Chi Draconis 2 at SolStation.

★ Alcyone ephemeris

★ nStars database entry