Star lore
Scheat
Direct answer
Scheat is Beta Pegasi, a cool red giant and semiregular variable at the northwestern corner of the Great Square.
Scheat is the warm-colored variable corner above Markab in Pegasus.
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At a glance
- Found in
- Constellations & Star Lore
- Related
- Alpheratz, Markab, Enif, Rasalhague
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The story behind Scheat
The traditional name is long established, although its exact linguistic derivation has been debated.
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Why Scheat matters
Scheat’s slight variability and red color offer accessible evidence that even familiar square corners are evolving stars.
How to read Scheat
Find Scheat directly above Markab in the Great Square and compare its hue with blue-white Alpheratz.
Scheat in practice: an example
Repeated estimates against neighboring square stars can reveal Scheat's slow brightness changes.
Where readings of Scheat go wrong
Subtle variation should be recorded over time rather than inferred from one night of atmospheric scintillation.
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
Watch the changing corner of Pegasus
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Common questions
What is Scheat?
Scheat is Beta Pegasi, a cool red giant and semiregular variable at the northwestern corner of the Great Square.
What do people get wrong about Scheat?
Subtle variation should be recorded over time rather than inferred from one night of atmospheric scintillation.
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