Horologium
Horologium, constellation in the southern sky at about 3 hours right ascension and 50Β° south in declination. Its brightest star is Alpha Horologii, with a magnitude of 3.9. The French astronomer Nicolas Louis de Lacaille formed this constellation in 1754; it represents a pendulum clock.
Citation Information
Article Title:
Horologium
Website Name:
Encyclopaedia Britannica
Publisher:
Encyclopaedia Britannica, Inc.
Date Published:
11 May 2026
Access Date:
November 14, 2026