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Also known as Cir, Circini, the Compass
Circinus is a small, faint constellation in the southern sky, first defined in 1756 by the French astronomer Nicolas-Louis de Lacaille. Its name is Latin for compass, referring to the drafting tool used for drawing circles (it should not be confused with Pyxis, a constellation that represents a mariner's compass which points north). Its brightest star is Alpha Circini, with an apparent magnitude of 3.19. Slightly variable, it is the brightest rapidly oscillating Ap star in the night sky. AX Circini is a Cepheid variable visible with the unaided eye, and BX Circini is a faint star thought to ha
AI overview
Circinus is a small, faint southern constellation created in 1756 by French astronomer Nicolas-Louis de Lacaille, named after the drafting compass tool used for drawing circles. The constellation is notable for containing Alpha Circini, the brightest rapidly oscillating Ap star visible from Earth, and AX Circini, a Cepheid variable star that can be seen with the naked eye.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Constellation.latmin
- 90
- Constellation.name
- Circinus
- Constellation.abbreviation
- Cir
- Constellation.genitive
- Circini
- Constellation.pronounce
- Círcinus,genitive
- Constellation.symbolism
- Compass
- Constellation.RA
- –
- Constellation.dec
- −55.43°–−70.62°
- Constellation.areatotal
- 93
- Constellation.arearank
- 85th
- Constellation.numbermainstars
- 3
- Constellation.numberbfstars
- 9
- Constellation.numberbrightstars