Weather permitting, there will be observing sessions after the talk (632-8100).

Established in 1957, the club has monthly observing sessions to which the public is invited.

Through this system, real time, online observing sessions are performed, sharing the universe with the world.

There have been extended Mars observing sessions during recent oppositions.

Monthly observing sessions (see star party), are held at dark sky locations with which the club has prior arrangements.

I persuaded them to let me spend a year at the Center attending case discussions and observing clinical sessions.

The weather station's main purpose is to provide data for planning observing sessions by gathering information about the condition inside and outside the observatory.

The large housing dome and massive 42 tonne mirror make it difficult to maintain the telescope at a suitable constant temperature during observing sessions.

The north wall gallery was where spectators were allowed to observe open sessions.

Another stipulation in Hiram Perkins' endowment was that observing sessions be open to the public at least once a month.