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 (1845)
Dick, Thomas, 1774-1857 · London : Seeley, Burnside, and Seeley · leaf 553
motion, on a brass stand in mahogany case, £22 : Is.6 A small Tellurian, showing the motion of the Earth and Moon, &c,£1: 8s. 528 THE PRACTICAL ASTRONOMER. Hendersons planetarium. The following is a description of the most com-plete and accurate planetarium I have yet seen.The calculations… … Section of the wheel-work of a Planetariumfor shewing with the utmost degree of accuracythe mean tropical revolutions of the planetsround the sun, calculated by E. Henderson,LL.D. &c. In the above section the dark horizontal linesrepresent the wheel-work of the Planetarium, andthe annexed…
Astronomy · Astronomical instruments · Telescopes
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