Experience the magic of the changing seasons at the Fall Equinox Celebration! Join the Fairfax County Park Authority and the Analemma Society for an unforgettable event that celebrates the arrival of autumn. Mark your calendars for Saturday, September 23rd, from 12-2 p.m. at Turner Farm Observatory.
Explore these exciting opportunities:
Trace the sun's path during the equinox.
Uncover the mysteries of the seasons throughout the year.
Dive into realm of sundials and their ancient wisdom.
Gaze upon the Sun itself through cutting-edge solar telescopes.
Walk the Solar System, gaining insights into our cosmic neighborhood.
Calling all school groups and Scouts! We extend a warm welcome to you to join in the festivities. To ensure a seamless experience, please make prior arrangements on the Analemma Website.
In case of weather-related updates or more details, visit the Analemma Website. Don't miss out on this extraordinary opportunity to celebrate the Fall Equinox!
Free Friday Viewings at Turner Farm Park Observatory
Friday Night Viewing Status*
*This page is updated until 4 p.m. on Fridays. Please call 703-324-2820 to check status after 4 p.m. on Fridays.
The Analemma Society holds Friday Night Public Viewing Sessions at Turner Farm in Great Falls, VA.
Visit the Roll-Top Observatory in action where Analemma Volunteers guide the public to seeing celestial objects through several telescopes in the observatory room.
Visitors are invited to bring their own telescopes or binoculars
Elevate your group's experience with a unique program tailored just for you!
Engage with our astronomers, tour the telescope room, and make mind-blowing observations.
Daytime programs feature solar telescopes for sun-gazing.
Nighttime programs include constellation tours and celestial object viewing.
Perfect for participants 8 years or older.
Scouting badge options available.
Submit Group Inquiry
The Turner Farm grounds are open to the public daily, dawn to dusk, except for after-hours astronomy events hosted on Friday nights by the Analemma Society. Visit Astronomy Programs or the Analemma Society website for a schedule of events.
The picnic shelter and playground are open, and the shelter can be reserved through the picnic office. Equestrian facilities are open and have some permitted events.
There are no entrance fees at the park. There is no staff at the park.
This former dairy farm is open for general riding. It has almost 40 acres of open fields enclosed by perimeter fencing. Features include a novice-level, cross-country course with water, ditch and bank complexes, a round pen, a large (200’ x 300’) multi-purpose outdoor arena with all-weather footing, stadium jumps and dressage markers.
Turner Farm has a playground for small children at the end of the paved parking lot. There is a picnic pavilion/shelter available to rent. The Great Falls Lions Club sponsored the playground through a generous donation. Planned community facilities include jogging/walking trails, a bird habitat and observation areas.
The observatory has an Orientation Room used for educational programs. An Observation Room includes three telescopes with room for a fourth as private funding becomes available. The observatory features a retractable roof that rolls over the top of a fixed roof that covers the Orientation Room.