They wrote many books on Islamic astronomy and also manufactured astronomical equipment based on the Islamic system.

The Astronomy Museum (adult/student 800/650Ft) on the 6th floor of the east wing contains 18th-century astronomical equipment and an observatory.

A camp (Fort Venus) was established and the astronomical equipment was in place by the start of May.

A derivative of this work is still known today as the Barlow lens and is a widely used piece of astronomical equipment.

He earned his living as a cloth-bleacher and spent his income on astronomical equipment and books.

In both observatories, the location and building are owned by the park in question, while most of the astronomical equipment is owned by the college.

Dichroic filters are widely used in optical equipment such as light sources, cameras, astronomical equipment, and laser systems.

Commercial vendors selling a variety of astronomical equipment may also be present.

After his release, he remained under police control and some of his suspicious-looking astronomical equipment was confiscated.

To provide an opportunity for people to use astronomical equipment that they might not otherwise have encountered or experienced at first hand.