The Oklahoma City Astronomy Club will host a free public viewing of a rarely seen event when three of Jupiter’s four large moons transit across the planet’s face Friday night.

While single moon transits are often seen by observers using telescopes or binoculars, a triple moon transit only happens occasionally. Friday’s event will be the last one until 2032.

Club members will set up telescopes at Windsurfer’s Point on Old Lakeshore Drive, just south of Hefner Road on the northeast corner of Lake Hefner. Scopes will be in place at dark to allow viewing of other objects before the transit begins.

Visitors should watch weather forecasts. A full cloud cover or precipitation will make viewing impossible.