 List of stars in Horologium |
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| Abbreviation | Hor |
|---|---|
| Genitive | Horologii |
| Pronunciation | /ˌhɒrɵˈlɒdʒiəm/; genitive /ˌhɒrɵˈlɒdʒiaɪ/ |
| Symbolism | the Pendulum Clock |
| Right ascension | 3 |
| 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 |
| 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. |
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Horologium is a small and faint constellation in the southern sky (declination around −60 degrees). Its name is Latin for clock. It was created in the eighteenth century by Abbé Nicolas Louis de Lacaille, who originally named it Horologium Oscillitorium after the pendulum clock to honour its inventor, Christiaan Huygens. The name has since been shortened to be less cumbersome.
One of the few objects of interest to amateur observers is R Horologii, a Mira variable with one of the largest magnitude ranges known. The globular cluster AM1 is found in the constellation, the most remotely known globular cluster in the Milky Way at a distance of 398 000 light years.
See also
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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Wikimedia Commons has media related to: Horologium |
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Coordinates: 
03h 00m 00s, −60° 00′ 00″
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