The Observatory, Volume 17Editors of the Observatory, 1894 |
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Common terms and phrases
A. M. W. Downing Abney appear April axis bright British Astronomical Association Capt catalogue centre comet correction crater dark Decl deduced determination diameter disk distance double stars E. W. Maunder eclipse ephemeris equation equatorial error give glass Greenwich heliometer inches instrument interesting Isaac Roberts July June Jupiter latitude Lick Observatory light limb lines longitude lunar magnitude Mars Maunder mean measures Meeting meridian meteor method Moon Moon's nebula night object object-glass observations obtained orbit paper parallax period photographs photometer planet plate polar position present President Prof proper motion referred reflector refractor remarkable right ascension Roberts Royal Observatory satellite Saturn seen Sept solar spectra spectrum spot stellar streaks sun-spots Sun's Swift taken telescope temperature tion transit Transit of Mercury Turner variable stars variation visible