Star lore
Musca
Direct answer
Musca is a small southern constellation representing a fly, immediately south of Crux.
Musca is the Fly, a compact southern constellation beside the Coalsack.
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At a glance
- Found in
- Constellations & Star Lore
- Related
- Microscopium, Monoceros, Norma, Octans
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The story behind Musca
Musca came from late-sixteenth-century Dutch southern mapping and was once distinguished as the Southern Fly.
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The Road of the Sun
Where the twelve signs came from, and why they carry the names they do.
Why Musca matters
Musca’s Milky Way setting includes dark clouds, star-forming regions, and the visually striking Dark Doodad Nebula.
How to read Musca
Begin at the Southern Cross and move south past the Coalsack to Musca's small four-star shape.
Musca in practice: an example
Binoculars reveal dark lanes cutting across the bright Milky Way background in and around Musca.
Where readings of Musca go wrong
Older atlases used several insect names here; modern IAU usage is simply Musca.
Sources and editorial method
Research references used for this entry include:
- International Astronomical Union: The Constellations - Official names, abbreviations, and boundaries for the 88 modern constellations.
- NASA Space Place: What Are Constellations? - NASA introduction to constellation regions, patterns, visibility, and seasonal sky changes.
- Source
- The Great Almanac Dictionary
- Category
- Constellations & Star Lore
- Last updated
- 2026-09-26
Move south of the Cross into Musca
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Common questions
What is Musca?
Musca is a small southern constellation representing a fly, immediately south of Crux.
What do people get wrong about Musca?
Older atlases used several insect names here; modern IAU usage is simply Musca.
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