Star lore
Almach
Direct answer
Almach is Gamma Andromedae, a celebrated multiple-star system at the end of Andromeda's main chain.
Almach is Andromeda's colorful telescopic double and eastern chain star.
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At a glance
- Found in
- Constellations & Star Lore
- Related
- Mirfak, Mirach, Hamal, Menkar
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The story behind Almach
Almach’s Arabic-derived name refers to a small desert animal in the inherited constellation figure.
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Why Almach matters
Almach’s orange primary and blue-looking companion provide one of the most accessible examples of perceived color contrast in double stars.
How to read Almach
Trace Andromeda from Alpheratz through Mirach to Almach, then apply moderate telescope magnification.
Almach in practice: an example
A telescope resolves a bright golden star beside a fainter blue component, itself part of a more complex system.
Where readings of Almach go wrong
The companion's blue impression is influenced by contrast with the warmer primary.
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
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Common questions
What is Almach?
Almach is Gamma Andromedae, a celebrated multiple-star system at the end of Andromeda's main chain.
What do people get wrong about Almach?
The companion's blue impression is influenced by contrast with the warmer primary.
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