September 18, 2021: Venus moves into the boundaries of the classic Scorpion. Today the pattern is divided into Libra and Scorpius. Each evening watch the position of Venus change compared to the sidereal background.
Venus
2021, September 15-22: Evening Planets, Harvest Moon Effect
September 15-22, 2021: The moon passes evening planets Saturn and Jupiter as a lead in to the Harvest Moon and the geometrical effects of the sky, known as the Harvest Moon Effect
2021, September 13: Mercury at Greatest Elongation
September 13, 2021: Mercury reaches greatest elongation tonight. It is a challenge to see in the bright twilight.
2021, September 14: Moon Steeps in Teapot
September 14, 2021: This evening the bright gibbous moon is in a section of the constellation Sagittarius that is frequently known as the Teapot. Additionally, Evening Star Venus, bright Jupiter, and Saturn are in the evening sky.
2021, September 10-13: Moon, Scorpion
September 10-13, 2021: The waxing moon passes the classic Scorpion in the evening sky. Look for them in the south-southwest during the early evening hours.
2021, September 9: Rare Venus, Moon, Spica Spectacular
September 9, 2021: After this evening’s grouping, Evening Star Venus, the crescent moon, and Spica do not appear this close together until 2026. This is one of four groupings that fit into the same binocular field through 2036. For the fifth occasion during this evening apparition of Venus, the moon passes the brilliant Evening Star.
2021, September 7, 8: Mercury, Lunar Crescent
September 7 & 8, 2021: The crescent moon, emerging from bright sunlight after its New moon phase, appears near Mercury on these evenings. On September 8, use a binocular to find the crescent 5.0° to the upper right of the speedy planet.
2021, September 6: Evening Planets
September 6, 2021: Mercury, Venus, Jupiter, and Saturn shine in the evening sky. The moon is at its New moon phase at 7:52 p.m. CDT.
2021, September 5: Venus – Spica Conjunction
September 5, 2021: Venus passes Spica this evening in a widely-spaced conjunction.
2021, September 4: Moon’s Morning Tour
September 4, 2021: The moon’s star cluster tour continues this morning with the Beehive star cluster. In the evening sky, just one day before its conjunction with Spica, find the brilliant planet in the west-southwest after sunset.