Weather permitting, the William D. McDowell Observatory will open at 6:30 p.m. on Wednesday, Oct. 16, for A3 Comet Viewing. The comet will be visible from approximately 6:45 p.m. to 7:15 pm. Regular public viewing will then continue until 10 p.m. Please call 201-460-4001 on Wednesday for weather-related updates.