'Roughly what one needs for an astronomical telescope,' the German replied.

It is especially used in astronomical telescopes to remove the effects of atmospheric distortion.

A Carey mask is a focusing aid for astronomical telescopes.

Two types of self-correcting optical systems are under development for new astronomical telescopes.

It was almost the perfect place for an astronomical telescope.

This type of mount is used for astronomical telescopes and cameras.

It was previously home to Wales's largest optical astronomical telescope.

When Galileo turned the first astronomical telescope to the sky, the tide began to turn.

Thus, their primary venue continues to be astronomical telescopes.

The idea of using a liquid mirror in an astronomical telescope is not new.