Is it permissible to sight the moon with a telescope, or does it have to be with the naked eyes?

Answer

Sighting the moon with a telescope will not be valid for determining the Islamic months. The sighting has to be with the naked eyes. Spectacles are not in the category of telescopes and similar other instruments. The purpose of spectacles is to enable the weak eyes to see somewhat normally. Therefore sighting with normal spectacles is akin to sighting with the naked eyes.