Celestial Atlas Hercules <—Horologium: The Clock—> Hydra
(possessive form Horologii, abbreviation Hor) Hold the cursor over any Greek letter shown in the text to see its English transliteration
One of fourteen southern constellations created by Nicolas Louis de Lacaille in 1756, as a result of his observations of ten thousand southern stars; but not introduced to the public until the posthumous publication of his work, in 1763.
Map of Horologium
Modified version of Wikimedia Commons map by Torsten Bronger
Stars in Horologium
Stars which have common names often have multiple names, so the common names shown (if any) cannot be considered authoritative. Right ascension and declination are given in 2000.0 coordinates.