n MNASSA : Monthly Notes of the Astronomical Society of South Africa - The Pendulum Clock : deep-sky delights
|Article Title||The Pendulum Clock : deep-sky delights|
|© Publisher:||Astronomical Society of Southern Africa (ASSA)|
|Journal||MNASSA : Monthly Notes of the Astronomical Society of South Africa|
|Publication Date||Oct 2009|
|Pages||202 - 206|
Let us spend some time in the constellation Horologium which lies between Eridanus to its north, Reticulum diagonally eastward, and Hydrus to the south. The constellation was originally named Horologium Oscillitorium to honour Christian Huygens, the famous Dutch scientist, inventor of the pendulum in 1657 and the discoverer of Saturn's rings. Horologium is one of Nicolas-Louis de Lacaille's (1713 - 62) fourteen constellations which he created during his stay at the Cape of Good Hope from 1750 to 1752. It was with this visit that he established the framework for astronomy in South Africa.
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