Horologium

E481646
constellation galaxy supercluster globular cluster southern constellation star

Horologium is a faint southern constellation named after a pendulum clock, introduced in the 18th century by French astronomer Nicolas-Louis de Lacaille.

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Observed surface forms (4)

Surface form Occurrences
Alpha Horologii 0
Horologium–Reticulum Supercluster 0
Horologium Oscillatorium 0

Statements (45)

Predicate Object
instanceOf constellation ⓘ
galaxy supercluster ⓘ
globular cluster ⓘ
southern constellation ⓘ
star ⓘ
abbreviation Hor NERFINISHED ⓘ
apparentMagnitude about 3.85 ⓘ
areaInSquareDegrees about 249 ⓘ
borderingConstellation Cetus NERFINISHED ⓘ
Dorado NERFINISHED ⓘ
Eridanus NERFINISHED ⓘ
Hydrus NERFINISHED ⓘ
Reticulum NERFINISHED ⓘ
brightestStar Alpha Horologii NERFINISHED ⓘ
celestialHemisphere southern celestial hemisphere ⓘ
constellation Horologium NERFINISHED ⓘ
containsDeepSkyObject NGC 1261 NERFINISHED ⓘ
containsGalaxyCluster Horologium–Reticulum Supercluster NERFINISHED ⓘ
containsStar Alpha Horologii NERFINISHED ⓘ
Beta Horologii NERFINISHED ⓘ
Delta Horologii NERFINISHED ⓘ
declinationRange approximately −40 degrees to −70 degrees ⓘ
family Lacaille constellations NERFINISHED ⓘ
genitiveForm Horologii ⓘ
hasIAUDesignation Horologium NERFINISHED ⓘ
introducedBy Nicolas-Louis de Lacaille NERFINISHED ⓘ
introducedInCentury 18th century ⓘ
introducedInContext Lacaille's survey of the southern sky ⓘ
introducedInYear 1756 ⓘ
isCircumpolarFromSouthernLatitudes partly ⓘ
isFaint true ⓘ
isZodiacConstellation false ⓘ
listedIn IAU 88 modern constellations NERFINISHED ⓘ
namedAfter Horologium NERFINISHED ⓘ
Reticulum NERFINISHED ⓘ
pendulum clock ⓘ
nameMeaning the clock ⓘ
the pendulum clock ⓘ
originalDesignationByLacaille Horologium Oscillatorium NERFINISHED ⓘ
originLanguageOfName Latin ⓘ
rankByArea 58th largest constellation ⓘ
recognizedBy International Astronomical Union NERFINISHED ⓘ
rightAscensionRange approximately 2 hours to 4 hours ⓘ
spectralType K2III ⓘ
visibleFromLatitude up to about 30 degrees north ⓘ

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Dorado → borderedBy → Horologium ⓘ
Eridanus → borderingConstellation → Horologium ⓘ
constellation Dorado → borders → Horologium ⓘ
subject surface form: Dorado
Nicolas de Lacaille → introducedConstellation → Horologium ⓘ