This is a special month for planet watchers, as Mercury, Mars and Venus join in a special dance against the background of the stars of the constellation Virgo. Brilliant Venus makes the trio easy to spot low in the west shortly after sunset, with the closest combination taking place Sept. 10. The bright star to the left of the trio is Spica. Look for the planets early in the month. Mercury will be fading, and soon both Mercury and Mars will be lost in the twilight. Jupiter continues to hover above the stars of the teapot, constellation Sagittarius. Saturn reached a point opposite the sun from Earth on Wednesday, and, by the end of the month, will reappear in the morning sky.
On August 29 from midnorthern latitudes, Venus will be visible low above the western horizon after sunset. If you're lucky you might catch Mars and Mercury too. If you can't find it, keep looking during the coming weeks; Venus will set later after sunset every night, eventually becoming an unmissable "evening star."