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Anthony Ayiomamitis
January 6, 2011
3029
post image

Acquisition Details

Date Posted: January 6, 2011

Equipment card

Description

Krueger (or Kruger) 60 A/B is a very interesting binary red dwarf system which lies 13.15 light-years away in the constellation of Cepheus. The two member red dwarfs are separated by an average of 9.95 AU (or 2-3 arc-seconds) and revolve about a common center of mass with a period of 44.6 years. The brighter member of the binary system (Krueger 60 A) has a magnitude of 9.59 and is characterized with a mass of 27.1% and a diameter of 35% that of the sun. The dimmer member, Krueger 60 B, is also a flare star with a magnitude of 11.40 and a mass and diameter of 17.6% and 24%, respectively, that of the sun. Furthermore, Krueger 60 B at 0.18 solar masses is also one of the lightest stars known. Krueger 60 A/B is characterized with a proper motion of 0.989 arc-seconds per year. Further details at http://www.perseus.gr/Astro-Star-Dwarf-Krueger-60.htm .



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