Sunday: Tonight the nearly full moon and the planet Jupiter are not too far apart in the east. The two brightest objects in the sky are separated by 5 degrees with the distance slowly growing as they climb higher in the sky. By tomorrow morning the pair will be separated by more than 7 degrees.
Monday: While the tandem of the moon and Jupiter travel across the sky this morning, the moon reaches its full phase. The June full moon is known as the Strawberry Moon. The relatively short picking season for strawberries occurs each June, giving rise to the name of this moon.
Tuesday: Tonight the planets Mars and Mercury are very close to each other. At 9:30 p.m. the pair is 10 degrees above the horizon and less than two-tenths of a degree apart. Both objects will easily fit into the same field of view through a telescope. Mercury and Mars will remain close together for the next several days as Mercury slowly climbs higher than Mars.
Wednesday: This morning the planet Saturn and the wide gibbous moon are together in the southwestern sky. The two are separated by 4 degrees a half-hour before sunrise. However, when the planets first rose late last night, they appeared even closer together.
Thursday: Venus remains visible in the morning sky, but is growing increasingly difficult to see. It is only a few degrees above the horizon at 5:30 a.m. Find Venus while you can, since once it disappears it will not be visible again until October.
Friday: The summer solstice occurs today at 10:54 a.m., marking the first day of astronomical summer, the day when the sun reaches its furthest point north. The summer solstice is also the longest day of the year; after today, the days will slowly become shorter.
Saturday: One of the most prominent globular clusters, M 13, is visible high in the east. To find it, locate the group of four stars in Hercules that form a trapezoid, about 50 degrees above the horizon at 10 p.m. The western-most stars of the trapezoid are Zeta and Eta Hercules, from left to right. M 13 is 2½ degrees from Eta Hercules, along the line that connects Eta and Zeta. M 13 is barely visible to the unaided eye under dark skies; through binoculars, it looks like a fuzzy patch of light.