Horologium
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Horologium

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List of stars in Horologium
Abbreviation:	Hor
Genitive:	Horologii
Symbolism:	the Pendulum Clock
Right ascension:	3 h
Declination:	−60°
Area:	249 sq. deg. (58th)
Main stars:	6
Bayer/Flamsteed stars:	10
Stars with known planets:	1
Bright stars:	0
Nearby stars:	1
Brightest star:	α Horologii (3.85m)
Nearest star:	GJ 1061 (11.9 ly)
Messier objects:	none
Meteor showers:
Bordering constellations:	Eridanus Hydrus Reticulum Dorado Caelum
Visible at latitudes between +30° and −90° Best visible at 21:00 (9 p.m.) during the month of December

Horologium (pronounced /ˌhɒroʊˈlɒdʒiəm/ or /ˌhɔrəˈloʊdʒiəm/, Latin: clock) is one of the lesser southern constellations (declination around −60 degrees).

Originally named Horologium Oscillitorium by Abbé Nicolas Louis de Lacaille, the constellation name has since been shortened to be less cumbersome. Horologium Oscillitorium was to honour the inventor of the pendulum clock, Christian Huygens.

Since it was invented in the 17th century, and not visible in the Mediterranean there is no earlier mythology associated with it.

See also

• Horologium Supercluster

References

• Ian Ridpath and Wil Tirion (2007). Stars and Planets Guide, Collins, London. ISBN 978-0007251209. Princeton University Press, Princeton. ISBN 978-0691135564.

External links

• The Deep Photographic Guide to the Constellations: Horologium
• Starry Night Photography - Horologium Constellation
• Star Tales – Horologium

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Horologium

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