Half-hours with the Telescope: A Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction |
Other editions - View all
Half-Hours with the Telescope: Being a Popular Guide to the Use of the ... Richard Anthony Proctor No preview available - 2016 |
Common terms and phrases
30 Coloured Plates 61 Cygni Albireo Algol Almanac alt-azimuth amateur Andromeda aperture appears Arcturus astronomical axis blue brilliant BRITISH Cassiopeia centre cloth gilt cluster companion components constellation convex lens Crown 8vo Cygni Cygnus dark Dawes Demy 8vo diameter directed disc distance distinct vision double star easy double ecliptic Edition equator exhibit eye-glass eye-piece eye-tube favourable Fcap field of view Figures finder focal length glass HALF-HOURS heavens HENRY LAWSON Herculis Herschel horizon hour Howlett Illustrated instrument interesting Jupiter Jupiter's light look low power Lyræ magnitude maps Mars Mercury method Milky moderate power moon motion naked eye NATURAL HISTORY nearly nebula noticed object object-glass observer Ophiuchus Orion planet powerful telescope quadrature right ascension rings satellites Saturn Scorpionis screen seen shadow shown in Plate Sirius solar spherical aberration spot sun's tele trapezium tube turn variable Vega visible wide double Woodcuts yellow zenith
Popular passages
Page 19 - Bee-keepers' Association. A MANUAL OF BEE-KEEPING. Containing Practical Information for Rational and Profitable Methods of Bee Management. Full Instructions on Stimulative Feeding, Ligurianizing and Queen-raising, with descriptions of the American Comb Foundation, Sectional Supers, and the best Hives and Apiarian Appliances on all systems. With Illustrations.