Definition

Proper noun A small, bright constellation located in the polar region of the southern celestial hemisphere. Its name is Latin for "the southern triangle."

Usage

Triangulum Australe is used as the proper name for this specific constellation. It is one of the 88 modern constellations.

Examples

• Proper noun:
  • Triangulum Australe is most visible in the night sky during the southern hemisphere's summer.
  • The three brightest stars in Triangulum Australe form a nearly perfect triangle.
  • Astronomers study the deep-sky objects located within the boundaries of Triangulum Australe.

Advanced Usage

• Abbreviation: The standard three-letter abbreviation for the constellation, as defined by the International Astronomical Union (IAU), is TrA.
  • The star's coordinates place it within the bounds of TrA.

Variants and Related Words

• Triangulum: The name of a separate, smaller constellation in the northern hemisphere, known as "the triangle."
• Trianguli Australis: The genitive (possessive) form of the name, used in star designations. For example, the brightest star in the constellation is named Alpha Trianguli Australis.

Synonyms

• The Southern Triangle: The English translation of the Latin name.

Notes

Triangulum Australe is a fixed proper noun referring to a specific astronomical feature. It does not have phrasal verbs or idioms associated with it in common usage.

Noun

1. a small bright constellation in the polar region of the southern hemisphere near Circinus and Apus