Star lore
Markab
Direct answer
Markab is Alpha Pegasi, a blue-white giant marking the southwestern corner of the Great Square of Pegasus.
Markab is the lower western corner of Pegasus's Great Square.
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At a glance
- Found in
- Constellations & Star Lore
- Related
- Diphda, Alpheratz, Scheat, Enif
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The story behind Markab
Markab’s Arabic-derived name is associated with the saddle or vehicle of the winged-horse figure.
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Why Markab matters
Markab’s position helps establish the square's orientation and the line toward Pegasus's neck and autumn water constellations.
How to read Markab
Identify Markab below Scheat, then move west through Homam toward Enif.
Markab in practice: an example
A line across the square from Alpheratz to Markab points toward southern autumn sky regions.
Where readings of Markab go wrong
Different map orientations can make “lower” or “western” visual descriptions appear reversed.
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
Set the western base of the Great Square
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Common questions
What is Markab?
Markab is Alpha Pegasi, a blue-white giant marking the southwestern corner of the Great Square of Pegasus.
What do people get wrong about Markab?
Different map orientations can make “lower” or “western” visual descriptions appear reversed.
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