The Practical Astronomer / Comprising illustrations of light and colours--practical descriptions of all kinds of telescopes--the use of the equatorial-transit--circular, and other astronomical instruments, a particular account of the Earl of Rosse's large telescopes, and other topics connected with astronomy

The volume presents a hands-on guide for amateur astronomers, opening with clear explanations of light—its properties, refraction and reflection—and progressing to lenses, mirrors, and optical phenomena such as mirages and inverted images. It then gives practical, often illustrated instructions for constructing and using telescopes and instruments, including equatorial and transit mounts and descriptions of large reflectors of the day. Interspersed are experimental demonstrations, measurement principles, and advice for instrument makers, together with occasional moral and natural-philosophical reflections that relate astronomical observation to broader questions of design and order.