· · · ·
Proper NameNone
Bayer DesignationEta Cancri
Flamsteed Number33 Cancri
HR (BSC)3366
Right Ascension8h 32m 43s
Declination+20° 26' 28"
Distance318 light years
97 parsecs
MagnitudeApparent: +5.34
Absolute: +0.40
Spectral ClassK3III orange giant
Optimum VisibilityFebruary
NotesEta Cancri is an evolved star, having reached the later stage in its life cycle that sees its outer shell expand outward from its core. While only approximatly 1.5 times the mass of the Sun, this phase of expansion has seen the star's shell reach a diameter some seventeen times greater than that of the Sun.

Imagery provided by Aladin sky atlas

From Earth, Eta Cancri appears to be a faint star just on the verge of naked-eye visibility. In reality, it is an orange giant more than three hundred light years distant.


Related Entries