sky calendar

This Week's Sky at a Glance

This Week’s Sky at a Glance, July 11 – 19

Friday, July 11 Mars and Spica form a striking pair in the southwestern sky at dusk! They're now just under 2° apart. On Sunday evening they'll be at their minimum separation, 1.3°. Watch them change day by day. Full Moon tonight and Saturday night (exactly full at 7:25 a.m. Saturday morning Eastern Daylight Time.)...

This Week's Sky at a Glance

This Week’s Sky at a Glance, June 13 – 21

Friday, June 13 Vega is the brightest star shining in the east after dusk. It's currently the top star of the big Summer Triangle. The brightest star to Vega's lower left is Deneb. Look farther to Vega's lower right for Altair. The Summer Triangle will climb higher in early evening all through the summer,...