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Tuesday 19 September 2017 - 20:25:36Posted by Bobby
Invention of Horologium
Horologiumis an unrenowned southern constellation, invented in the 18th century by the French astronomer Nicolas Louis de Lacaille, lies between the bright stars Achernar and Canopus. It represents a pendulum clock, with its brightest star, Alpha Horologii (magnitude 3.9), marking the pedulum weight.
Depiction: The Clock
Highest in the Sky: November to Deccember
Size Ranking: 58th
Coverage Area: 249 Sq. Degrees
Right Acension: 3 hours
Visibility: 21°N to 90°S
NGC 1261: Globular cluster
NGC 1448: Unbarred spiral galaxy
Best Viewed Objects/Stars
A variable red giant of the type known as a Mira star. It ranges between 5th and 14th magnitudes every 13 months or so.
A variable red giant. Over a period of approximately five or six months, it ranges between about 5th and 6th magnitudes.