Telescopes Borrow a Telescope Summer is a great time to borrow a telescope! Telescopes come with instructions and hints on where to look for various constellations. Any adult library cardholder can check-out telescopes.Request for a telescope can be made at the circulation desk or by calling 314-994-3300. The Borrow a Telescope program is made possible by donations from the Astronomical Society and the St. Louis County Library Foundation. Loan Period: 21 Days Service Category: Library of Things Audience: Adult Programs