Mayor Tiffany Martin Hamilton announced this morning that the Hudson Senior Center at the Galvan Armory will open on Monday, August 1. The center's hours will be 9:30 a.m. to 4 p.m. Monday through Friday. Morning programming will be managed by the Columbia County Office for the Aging; afternoon programming will be managed by the City of Hudson. Lunch will be served daily. After the first day, those wanting to have lunch at the senior center must make a reservation a day in advance on a sign-up sheet or by telephone. Yoga and aerobics classes now offered at the Hudson Youth Center will, starting next week, be held at the new location.