Earthsky Tonight—July 23, Jupiter appears to stop, then change direction
The Earth’s average speed is about 67,000 miles an hour, while Jupiter lumbers along at less than half that speed, or about 29,000 miles an hour.
Earthsky Tonight—July 22, Shaula and Lesath near the moon
In a dark country sky, you will have no trouble seeing the Scorpion’s J-shaped loop of stars and the two stinger stars, Shaula and Lesath.
Earthsky Tonight—July 21,Moon and Antares even closer today
To immortalize this story about Orion and the Scorpion, the gods turned the two archenemies into constellations.
Earthsky Tonight—July 20, Moon and Antares cross the sky together
The moon is a chunk of rock, shining with sunlight that reflects from its surface. It can appear to cover Antares only because the moon is so close to us…
Earthsky Tonight—July 19, Summer Triangle: Altair and Aquila the Eagle
The Great Rift of the Summer Milky Way passes through the Summer Triangle, between the stars Vega and Altair.
Earthsky Tonight—July 18,Moon moves past Spica, approaches celestial ‘Gateway’
The moon is shifting farther and farthest east, with respect to the stars, each day. The moon always moves toward the east on our sky’s dome.
Earthsky Tonight—July 17, Lunar night versus lunar day
The name for this border between lunar night and day is the terminator line.
Earthsky Tonight—July 16, Summer Triangle: Deneb and Cygnus the Swan
Deneb is the northernmost star in the Summer Triangle. Its constellation is Cygnus the Swan.
Earthsky Tonight—Moon close to Mars. Venus, Mercury, Saturn nearby
Obviously, the moon changes places from day to day, but how about the planets?
Earthsky Tonight—July 13, Young moon, Mercury sit close to horizon after sunset
The three other evening planets will be much easier to spot. From top to bottom, these worlds are Saturn, Mars and Venus