Which constellations can you see in the summer?
In the northern hemisphere the constellations on the meridian on
June 21 have a right ascension of 18 hours, and constellations from
15 to 18 hours can be seen in summer evenings.
They are not as bright as the winter constellations. The main
ones are Boötes (main star Arcturus), Corona Borealis, Serpens
Caput, Libra, Hercules and Ophiuchus. In the southern sky, Scorpio
(main star Antares).
In the summer the circumpolar constellations like Cassiopeia,
Ursa Major, Perseus and Draco can be seen although not in their
usual winter positions.