SkyRef / Constellations

The Perseus constellation

Best placed in September. It sits well north on the sky and is comfortably placed for northern hemisphere observers.

Where and when

Best monthSeptember
Right ascension4.4h
Declination+45°
Line segments3

Finding it

Perseus is centred near right ascension 4.4 hours, declination +45°. It sits well north on the sky and is comfortably placed for northern hemisphere observers.

It reaches its highest point in the sky around local midnight in September, which is when it is easiest to pick out. Earlier in the year it rises before dawn; later, it is already setting in the evening.

Bright stars in this part of the sky

StarMagnitudeCatalogue
Capella0.08HR 1708
Elnath1.65HR 1791
Algol1.79HR 1017

See it on the live map

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Other constellations

AndromedaAntliaApusAquariusAquilaAraAriesAurigaBoötesCaelumCamelopardalisCancerCanes VenaticiCanis MajorCanis MinorCapricornusCarinaCassiopeiaCentaurusCepheusCetusChamaeleonCircinusColumbaComa BerenicesCorona AustrinaCorona BorealisCorvusCraterCruxCygnusDelphinusDoradoDracoEquuleusEridanusFornaxGeminiGrusHercules