|Visible in Latitudes:||20° thru -90°|
|Best Seen In:||December, 9:00 pm|
|Transit Date:||November 24|
|Right Ascension:||3.11 hours|
|Area:||248.885 sq. degrees|
Horologium was named by Abbé Nicolas Louis de Lacaille during his stay at the Cape of Good Hope between 1751 and 1752. It was originally named Horologium Oscillitorium to honor Christian Huygens, the inventor of the pendulum clock in 1656-57. Like many of Lacaille's other long constellation names, Horologium Oscillitorium was shortened in modern times to simply Horologium.