Dictionary term
Mimosa
Direct answer
Mimosa is Beta Crucis, a hot blue-white multiple star marking the eastern arm of Crux.
Mimosa is the bright eastern arm star of the Southern Cross.
Mimosa is the bright eastern arm star of the Southern Cross.
A symbolic locator, not a substitute for an observational chart at a specific place and time.Quick reference
- Use when
- Place Mimosa opposite Delta Crucis across the Cross, with Acrux below and Gacrux above.
- Do not use it for
- The variability is subtle and does not account for obvious naked-eye flickering near the horizon.
- Reference category
- Constellations & Star Lore
- Related terms
- Pollux, Castor, Acrux, Hadar
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The story behind Mimosa
The name Mimosa entered modern navigation usage and is now approved by the IAU.
Mimosa in spiritual tradition
Mimosa marks one arm of a pattern that has oriented generations of southern travelers.
Mimosa: fact and faith, kept distinct
This is a factual sky reference. It can support wonder and orientation without turning a measured position or inherited pattern into a claim of fate or private revelation.
Mimosa in numerology
Mimosa is not a numerology claim. Any numbers attached to it should retain their ordinary scientific, calendrical, navigational, or historical meaning unless a separate symbolic interpretation is clearly labeled.
Why Mimosa matters
Its color and position help distinguish true Crux from nearby false-cross patterns.
Mimosa at work: an example
Photometry shows that Mimosa varies slightly as a Beta Cephei pulsating star.
Where interpretation stops
Mimosa is presented as sourced astronomy, calendrical, Earth-science, cultural, or instrument-history reference. Definitions should distinguish measured phenomena from civil convention and historical interpretation, preserve location and time dependencies, and avoid turning factual sky data into a deterministic personal claim.
Sources and editorial method
Research references used for this entry include:
- IAU Division C Working Group on Star Names - Official IAU working group responsible for standardizing star names used in international astronomy.
- CDS SIMBAD Astronomical Database - Professional astronomical database for stellar identifiers, positions, classifications, and bibliography.
- Source
- The Great Almanac Dictionary
- Category
- Constellations & Star Lore
- Also appears in
- Constellations & Star Lore
- Aliases
- None listed
- Last updated
- 2026-07-16
Set the eastern arm of Crux
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Common questions
What is Mimosa?
Mimosa is Beta Crucis, a hot blue-white multiple star marking the eastern arm of Crux.
How is Mimosa used in an almanac?
Place Mimosa opposite Delta Crucis across the Cross, with Acrux below and Gacrux above.
What should I avoid when interpreting Mimosa?
The variability is subtle and does not account for obvious naked-eye flickering near the horizon.
