Five "Open nights" will be held at the College Observatory from Monday, November 17, until Friday, November 21.

The programs will consist of short non-technical talks followed, when weather permits, by telescopic observations of celestial objects.

On Monday, November 17, Walter O. Roberts, superintendent of the High Altitude Observatory, Climax, Colorado, will talk on "The Sun: Earth's Most Important Star"; while James G. Baker, professor of Astronomy will discuss "Telescopes for Pleasure" the following evening.

Whipple Speaks

Fred L. Whipple, professor of Astronomy, mounts the rostrum on Wednesday, November 19, to speak on "V-2 Rockets and Astronomy."

"A Trip to the Planets and Stars" will be the topic of a lecture by Charles Federer Jr., editor of Sky and Telescope, on Thursday, November 20; while Horace Taylor, past president of the Bond Astronomical Club, which is sponsoring the talks, will discuss "All Illustrated, Story of the Moon," on Friday, November 21.

The later program is part of the Observatory's special children's night.

All the lectures are scheduled for 8 o'clock. Tickets are being distributed with a limit of two per person on application by mail to the Observatory.