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Gamma2 Caeli

X Caeli

Proper NameNone
Bayer DesignationGamma2 Caeli
Flamsteed NumberNone
HR (BSC)1653
Variable DesignationX Caeli
Right Ascension5h 4m 26s
Declination-35° 42' 18"
Distance336 light years
103 parsecs
MagnitudeApparent: +6.32
Absolute: +1.25
Spectral ClassF2IV/V bright yellow subgiant
Optimum VisibilityDecember
NotesGamma2 Caeli is a binary system, in which the primary star shows characteristics of both a subgiant and a main sequence star. This primary is a pulsating variable of the Delta Scuti subtype, showing rapid and regular changes in brightness over a repeating period of 3.25 hours.

Gamma2 Caeli forms an apparent pair in the sky with the much brighter Gamma1 Caeli, thirteen arcminutes to the north. Gamma1 Caeli is not only more intrinsically luminous than Gamma2, but also much closer to the Sun, and so it appears more than five times brighter as seen from Earth. Imagery provided by Aladin sky atlas


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