Star lore
Gacrux
Direct answer
Gacrux is Gamma Crucis, a red giant marking the top of the Southern Cross.
Gacrux is the warm-colored upper star of Crux's long axis.
$0 today, then $12/month after 7 days. Cancel anytime.
At a glance
- Found in
- Constellations & Star Lore
- Related
- Sadr, Albireo, Nunki, Alnair
What does your own chart say about you?
Choose love, work or purpose. Your reading is written from your chart. Your reading uses your own birth details.
Walk through Alex’s whole example first
The Road of AgesSee the turning points of your whole life, from your birth date
See your road's shape
Prefer to explore first?
The Road of AgesThe turning points of your whole life, from your own chart
Walk my road
Free, by email
Your daily Almanac letter
One short letter at 7 each morning: the day’s theme read for your own chart, and one thing to do with it.
The story behind Gacrux
Gacrux’s modern name contracts Gamma and Crux and is standardized by the IAU.
A one-minute story
The Road of the Sun
Where the twelve signs came from, and why they carry the names they do.
Why Gacrux matters
Gacrux’s line through Acrux supplies a principal naked-eye estimate of the direction toward the south celestial pole.
How to read Gacrux
Identify Gacrux above Acrux, extend their axis past Acrux, and cross-check with the Southern Pointers.
Gacrux in practice: an example
Gacrux's orange-red hue contrasts clearly with the hotter blue-white stars elsewhere in Crux.
Where readings of Gacrux go wrong
The pole estimate is approximate and false-cross patterns must be rejected before navigation use.
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
- Last updated
- 2026-09-26
Draw the Cross axis from Gacrux
A definition tells you what it is; your own birth chart tells you what it means for you. The Oracle casts your real chart and answers for your love, your work, and your year ahead, in conversation. It opens with the 7-day Seeker trial.
Speak with the OracleRelated terms
More in Constellations & Star Lore
From the reference page to your own chart
Every word here
is in your own chart.
- A personal reading about love, work or purpose, written from your chart
- A practical next step to consider
- It opens with 7 days free, with the AI Oracle and daily guidance
$0 today, then $12/month after 7 days. Cancel anytime.
Common questions
What is Gacrux?
Gacrux is Gamma Crucis, a red giant marking the top of the Southern Cross.
What do people get wrong about Gacrux?
The pole estimate is approximate and false-cross patterns must be rejected before navigation use.
Free, by email
The Almanac, in your inbox at 7
One short letter at 7 each morning: the day’s theme read for your own chart, and one thing to do with it.
