Mark your calendars for a free open house and night sky observing at the Milwaukee Astronomical Society in New Berlin, with a spooky theme. Tour a 90-year-old amateur observatory, one of the largest of its kind in the states, and take home a picture of a nebula, star cluster or galaxy if the weather cooperates. We will also have tours and a presentation on "spooky" nebulas, featuring member-astrophotographers who will present on techniques and equipment to capture these celestial gems.…