A chance to join local astronomy buffs for a look at the sky through instruments, including the observatory’s 24-inch McMath classical Cassegrain telescope. Participants encouraged to bring their own telescopes. Visitors must turn off all electronic equipment (car radios, transmitters, phones, etc.) at the observatory entrance. Cancelled if sky is overcast at sunset or if the weather is extremely inclement. If in doubt, call after 4 p.m. day of event. Rain date is Oct. 10. Sunset–12:30 a.m. or as long as the sky remains clear, Peach Mountain Observatory, 10296 North Territorial. (about 1¼ miles west of Hudson Mills Metropark), Dexter. Free. (734) 975–3248.