Analemma Society Programs

  • Roll-Top Observatory

    Fairfax County Park Authority opened the new Roll-Top observatory and classrooms in.  The facility is now used extensively for Fairfax County Park Programs and Analemma Society Friday night observing and educational programs.

  • Roll-Top Observatory

    The new Roll-Top observatory is open for Friday night public observing and for Fairfax County Park Authority courses and other events in the classroom.  The facility, dedicated in 2016 is open on clear Friday nights for observing assisted by Analemma Society volunteers.

  • Public Observing

    Analemma Society holds regular public star-gazing nights at Observatory Park, Turner Farm, Great Falls Virgnia through cooperation with the Fairfax County Park Authority.

  • Looking into the Sky

    Analemma Society in cooperation with Fairfax County Park Authority makes available the Remote Accessed Telescope Observatory (RATO) for astronomical imaging.  In the near future, students will be able to request astronomical images through this website.

  • RATO

    Analemma Society uses the RATO observatory.  The Roll-Top Observatory complements this for public observing made available through Fairfax County Park Authority for astronomical observing events and educational classes.

  • M13 Globular Cluster

    Analemma Society has educational programs throughout the year to dexplain astronomical objects and their relevance to our lives.

  • Veil Nebula

    The Analemma Society was founded in 1998 to foster science through astronomy.  Star-Gazing at the moon, stars, and deep sky objects is a regular public event.

At Observatory Park on Turner Farm in cooperation with the Fairfax County Park Authority, the Analemma Society provides the RATO for public outreach programs in astronomy.

The RATO is a tall cinder block building, approximately 26 feet high, exists on the site with a 16 foot diameter electrically driven Ash Dome. The building is separated from the telescope support, providing vibration free observing.

Underneath the dome is a Mead 16", f/4.5 Newtonian reflecting telescope (Model DS-16) with an Equatorial Mount on a 6-inch diameter pier.  The telescope is equiped with:

  • a powered worm gear drive Model #897 Electric Motor System
  • Mead Model 36 Single/Dual Axis Controller
  • Diagonal Prism #918 1-1/4" O.D. and a 2" O.D. Diagonal Prism
  • 2-inch rack-and-pinion focuser #67
  • Tele Vue 40mm Wide Field Lens
  • 2" Tele Vue 12mm Nagler, TYpe 2 lens and an assortment of 1-1/4" lenses and plarizer
  • Off axis Mead AA 12mm Illuminated Reticle Guider
  • Telrad finder
  • 8 x 50mm viewfinder
  • 2" Lumicon Barlow Lens
  • 2" Lumicon coma  corfrector
  • Lumicon Hypersensitization Kit Model 300
  • SBIG Model ST-6 CCD Imaging Camera

The telescope is controlled using AstroPhysics software.

Also available is an auxiliary 8" Meade Schmidt-Cassegrain Telescop (Model # 2080) with quartz LX Drive. For portability, it is mounted on an Equatorial Wedge/Field Tripod System. There is a Dew Cap and 8" Solar Filter.