Today:
In this evening’s twilight, look to the west-southwest, and you’ll see a large, tall triangle. First dangling low on the horizon, and nearly due west, is Venus. Farther toward the southwest shines the bluish/white star Spica. Much higher in the west, and rounding out this alternative summer triangle, is Arcturus, the brightest star in the northern celestial hemisphere.
Saturday:
Looking high in the east at 11 PM revels Cygnus the Swan, its tail marked by the bright star Deneb, which is also a member of the Summer Triangle. Cygnus will move almost overhead by midnight when, just to its south, you can see Aquila the Eagle, and its bright star, Altair, which is another point on the Summer Triangle.
Sunday:
Early risers tomorrow morning are treated to a thinning Crescent Moon surrounded by celestial treasures. Below and to the left of the Moon is Pollux, the lower of the twin stars of Gemini, with the other, Castor, above. Meanwhile, Mars glows brightly to the Moon’s upper right, with Aldebaran higher and more to the right. By 5 o’clock, in the blush of twilight, Mercury appears low to the horizon and below Pollux.