Clear skies over the next few nights will make for great sky-watching, particularly before moonrise. The autumnal equinox comes on Monday.
Jupiter and Saturn are bright in the evening sky in the south. Venus and Mercury have moved out the morning sky but will show up in the evening sky shortly. Orion is rising in the morning sky and the Summer Triangle is high overhead.
Comet Borisov, discovered August 30, is moving at a high speed through the solar system. By its orbit, it appears to be an interloper from outside our solar system, only the second to be observed.