Mimosa
Beta Crucis · Crux
Position (2026)
♏ 12°01' Scorpio
Magnitude
1.25
Planetary Nature
Jupiter (robson)
Not in Robson (too far south). Nature assigned from general Crux character.
Spectral Type
B0.5III
Mimosa in Astrology
Mimosa, in the Southern Cross in Crux, carries Jupiter energy that bestows intuitive wisdom, spiritual sensitivity, and a talent for ritual or ceremonial expression. It grants the native a connection to transcendent meaning and the capacity for experiences that bridge the human and the divine. Faith is informed by direct inner experience.
Mythology & History
Mimosa, also known as Beta Crucis, takes its name from the flower, an association that may derive from its position in the Southern Cross's distinctive pattern. The name was popularized by navigators who encountered the Cross during voyages through tropical regions where mimosa trees grow. Like Acrux and Gacrux, Mimosa was not individually named by Mediterranean cultures. Its Jupiter nature gives it an expansive, optimistic quality, and its brilliance makes it one of the most prominent stars in the southern sky.
Crux Context
Mimosa marks the eastern arm of the Southern Cross, the left transverse point as seen from the southern hemisphere. While Acrux anchors the base and Gacrux caps the top, Mimosa provides the horizontal extension that gives the Cross its distinctive cruciform shape. The cross arm points generally toward the east, and in navigation the full cross was used to determine south. Mimosa's position at the eastern arm associates it with new beginnings and the direction of sunrise.
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