• The Amateur Astronomers Association of Pittsburgh is sponsoring a "Wagman Winterfest" at 4 p.m. Feb. 16 at the Nicholas E. Wagman Observatory, Deer Lakes Regional Park, Frazer. Donations are accepted. Call 724-224-2510.

• The School at McGuire Memorial is holding a "Special Auction for Special People" at 6 p.m. March 1 at the Westin Convention Center Hotel. A Shelby GT500 automobile also is being raffled off. The cost is $150 per person, and the deadline is Feb. 28. Proceeds benefit the school's Employment Option Center. Call 724-843-0365.

• The American Liver Foundation, in conjunction with the Asian Pacific American Medical Student Association of the University of Pittsburgh and the Allegheny County Health Department, is offering screenings for hepatitis B from noon to 4 p.m. Feb. 15 in Rangos 2 in the University Center at Carnegie Mellon University, 5000 Forbes Ave., Oakland. Call 412-434-7044 or 650-248-1085.

• Monongahela Valley Hospital is offering lipid and blood glucose screenings from 7 a.m. to noon Feb. 18 at its Healthy Directions health information and resource center, 3547 Washington Ave., Finleyville. The cost is $12, and advanced registration is requested. A 12-hour fast is required. Call 724-348-6699.

• Excela Health is offering car seat safety checks by appointment only from 2 to 4 p.m. Feb. 19 at Westmoreland Hospital. Call 1-877-771-1234.

• Jefferson Regional Medical Center is hosting a Healthy Heart Wellness Fair, including screenings for blood pressure, cholesterol, risk fact analysis, body mass index and pulse oximetry, from 4 to 8 p.m. Feb. 19. Registration is preferrred. Call 412-469-7100.

• The American Red Cross is sponsoring a blood drive from noon to 6 p.m. Feb. 15 in the Anthony M. Lombardi Education Conference Center of Monongahela Valley Hospital. Call 724-258-1234.

• Allante Hair Designs & Spa, 160 Stark Ave., Greensburg, is sponsoring "The Body You've Always Wanted and How to Achieve It" from 7:30 to 9 p.m. Feb. 20. Instructors are Mike Clark of WTAE-TV and Mark Rullo. The cost is $10 if paid by Feb. 16 and $15 at the door. Call 724-836-3600.

• Jefferson Regional Medical Center is sponsoring "Latest Treatment in Migraine Therapy" from 5 to 7 p.m. Feb. 21 in its James Bibro Pavilion as part of its "Health for Her" series. The program is free, but registration is required and space is limited. Call 412-469-7100.

• The Pittsburgh Business Group on Health is sponsoring its annual Health Plan Executives Forum 8 a.m. to 11:30 a.m. Feb. 19 at the Pittsburgh Marriott City Center, 112 Washington Ave., Downtown. The cost is $50, free for members. Call 724-266-0383.

• OASIS senior citizens center, 10th floor, Macy's, 400 Fifth Ave., is sponsoring a seminar, "Am I On Overload or Is This Truly a Senior Moment?" from 1 to 2 p.m. Feb. 19. Call 412-232-2020.

• Excela Health is sponsoring the following classes at Westmoreland Hospital unless otherwise indicated. Call 1-877-771-1234.

-- AARP Driver Safety program, 8:30 a.m. to 4:30 p.m. Feb. 16, conference room D. Cost: $10.

-- Ornish Advantage classes for reversing heart disease, 10 a.m. to noon or 5:30 to 7:30 p.m. Tuesdays beginning Feb. 19, Medical Commons One.

-- Smoking cessation, seven weeks, 6 to 7:30 p.m. Thursdays beginning Feb. 21, Blairsville Area Medical Park, Resort Plaza, 56 Club Lane, Burrell, Indiana County.

• The Southwestern Pennsylvania chapter of the American Red Cross is sponsoring the following safety courses at its Downtown offices, 225 Blvd. of the Allies. Call 412-263-3106.

-- Standard first aid with CPR, adult and child plus infant CPR, 8 a.m. to 6 p.m. Feb. 19. Cost: $60.

-- CPR with AED, adult, 6 to 10:30 p.m. Feb. 19. Cost: $40.

-- CPR with AED for the professional rescuer, 8 a.m. to 6 p.m. Feb. 21. Cost: $70.

-- First aid, 6 to 10 p.m. Feb. 21. Cost: $35.

-- Standard first aid with CPR and AED, adult, 8 a.m. to 3:30 p.m. Feb. 23. Cost: $55.

• A research study of exercise and the immune system at the University of Pittsburgh is looking for healthy nonsmokers between ages 18 and 80, who exercise at least three times a week. Participation requires a 30-minute visit to the clinic at Magee-Womens Hospital,a sample of blood and saliva and a health questionnaire. Compensation is $25. For details, leave a message at 412-641-6116.