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Quadrant of the northern sky

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Constellation FamiliesContains members of the Hercules, Ursa Major and Zodiac families
Right Ascension12h00 to 18h00
Declination0° (Celestial Equator) to +90° (Northern Celestial Pole)
ConstellationsFully contained: Boötes, Canes Venatici, Corona Borealis
Partial: Draco, Camelopardalis, Coma Berenices, Hercules, Serpens, Ursa Major, Ursa Minor, Virgo
Area (sq deg)5,156.625
Brightest StarArcturus in Boötes
Optimum VisibilityApril to July (Usually visible from northern latitudes)
NotesThe northern parts of this quadrant are marked by Ursa Minor, the Little Bear, and the tail of Ursa Major, the Great Bear. Southward, the quadrant is dominated by Boötes and Hercules, while the Virgo Cluster of galaxies falls in the southwestern corner of this region where Coma Berenices meets Virgo.


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