· · · ·


Gamma Ceti, 86 Ceti

Proper NameKaffaljidhma
Bayer DesignationGamma Ceti
Flamsteed Number86 Ceti
HR (BSC)804
Right Ascension2h 43m 18s (A), 2h 43m 18s (B)
Declination+3° 14' 9" (A), +3° 14' 11" (B)
Distance80 light years
24 parsecs
MagnitudeApparent: +3.54 (A), +6.12 (B)
Absolute: +1.60 (A), +4.18 (B)
Spectral ClassA2Vn white main sequence star (A), F4V bright yellow dwarf (B)
Optimum VisibilityNovember
NotesThe heart of the Kaffaljidhma system is formed by two main sequence stars in a close orbit. One of these stars is a bright yellow F-type dwarf, while the other is much hotter and more luminous A-type star. A third member of the system, Kaffaljidhma C, is a faint and cool orange dwarf pursuing a much more distant orbit around the central pair.

Kaffaljidhma is a triple system, with the two main stars (A and B) forming a binary pair separated by just two seconds of arc, and therefore not distinguishable in this image. The third star in the system is a faint tenth-magnitude K-type dwarf orbiting the inner pair at a distance of some 20,000 AU. Imagery provided by Aladin sky atlas


Related Entries