Rukbat
Alpha Sagittarii · Sagittarius
Position (2026)
♑ 17°01' Capricorn
Magnitude
3.96
Planetary Nature
Jupiter / Saturn (anonymous-379)
Anonymous of 379: Jupiter and Saturn. Alpha Sagittarii.
Spectral Type
B8V
Appearance
A blue-white main-sequence star at the knee of the Archer
Rukbat in Astrology
Rukbat is Alpha Sagittarii at the Archer's knee. The Anonymous of 379 historically places it at the nineteenth degree of Sagittarius in the Zeus and Kronos group. Its surviving specific delineation is angular: when the star rises, marks the birth hour, or culminates, the text associates it with work involving quadrupeds and chariots, including driving horses or holding their reins.
When Rukbat Is Angular
Rukbat carries additional weight when it falls on one of the chart angles, independent of any planet conjunction.
If Rising
Anonymous of 379 associates Rukbat rising or marking the birth hour with work involving quadrupeds and chariots, including driving horses or holding their reins.
If Culminating
Anonymous of 379 gives the same specific delineation when Rukbat culminates: work involving quadrupeds and chariots, including driving horses or holding their reins.
Mythology & History
In the Anonymous of 379, Rukbat is the star down from the knee of Sagittarius, identified in Robert Hand's appendix as Alpha Sagittarii. The passage does not supply a separate mythic story.
The Schmidt translation, printed page 6, places Rukbat at the nineteenth degree of Sagittarius in its Zeus and Kronos group. Robert Hand's Appendix III identification table, printed page 26, confirms Alpha Sagittarii, Rukbat.
Sagittarius Context
Rukbat is Alpha Sagittarii at the Archer's knee. HYG Database v4.1 identifies it as HIP 95347, a magnitude 3.96 B8V star at right ascension 290.971545 degrees and declination -40.61594 degrees.
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