how many stars are there in it?
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what do you mean by circinus? A small, faint constellation in the southern sky who discovered it? Nicolas-Louis de Lacaille when was it done? 1756 can you point out some of its features? Bordered by Centaurus, Musca, Apus, Triangulum Australe and culminates each year at 9 p.m on 30 July.
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Circinus [SEP] Characteristics
Bordered by Centaurus, Musca, Apus, Triangulum Australe, Norma and Lupus, Circinus lies adjacent to the Alpha and Beta Centauri stars. As it is at declination −50° to −70°, the whole constellation is only visible south of latitude 30° N. The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of 14 segments. In the equatorial coordinate system, the right ascension coordinates of these borders lie between and , and the declination coordinates are between −55.43° and −70.62°. Circinus culminates each year at 9 p.m. on 30 July. The recommended three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Cir".