Horologium

English name	Clock
Major stars	No star of the constellation exceeds the magnitude 3,5.
Description	Weak constellation of the southern hemisphere, to the south of Eridanus. The only remarkable object is R Horologii, a red giant which has a notable variability: it oscillates in fact from the fifth magnitude to the fourteenth with a period of about 400 days.
Mythology and history	The constellation was drawn by Nicolas Louis de La Caille in 1756. It represents a pendulum-clock.

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