- Since any three points make up the corners of a triangle it is unsurprising, if somewhat unimaginative, to find a triangle among the constellations. Aratus and Eratosthenes knew this constellation as Δελτωτόν (Deltoton), because its shape resembled a capital delta (Δ), while Ptolemy in the Almagest listed it as Τρίγωνον (Trigonon), triangle.
- Ruchba (stars.astro.illinois.edu)
Oddly, while the Omicrons have no proper names, dimmer Omega-1 (the brighter and western of its pair) is known as Ruchba (from an Arabic phrase meaning “the Hen’s Knee), which is not be confused with the OTHER Ruchbah, Delta Cassiopiae, the two being distinguished only by their English spellings.