Looks like a good night for a star party. The sky will be mostly clear with some clouds coming and going. Temperatures will drop into the 60s, so be prepared for a cooler evening than the summer nights have been.

We will see Jupiter and Saturn, the late summer constellations and deep sky objects, and no moon.

The ISS will not pass over tonight, but LightSail 2 will, if you’re interested in viewing that (at magnitude 7).

Sunset is shortly before 8. Astronomical twilight is about 9:30. Dewpoint will be well below the temperature at sunset, but later the temperature will drop to the dewpoint, and we’ll start to see
condensation on instruments.

See you there tonight.