n MNASSA : Monthly Notes of the Astronomical Society of South Africa - The Pendulum Clock : deep-sky delights

Volume 68, Issue 9_10
  • ISSN : 0024-8266



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 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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