The Royal observatory, Greenwich. A glance at its history and work (1900)
Maunder, E. Walter (Edward Walter), 1851-1928 · London, The Religious tract society · leaf 216
beats : five, six, seven, it may be, as thestar has been all but reached by the advancing moon.1 Eight, it is still clear ; ere the beat of the clock ringsto the nine, perhaps the little diamond point hasbeen touched by the wide arch of the moons limb,and has gone! Less easy to exactly time is… … <3 S & •^ ^^ THE ALTAZIMUTH DEPARTMENT 215 telescope, watches intently the moons circumferenceat the point indicated, and, listening for the clock-beats, counts the seconds as they fly. Suddenly,without warning, a pin-point of light flashes out atthe edge of the moon, and at once draws away…
Royal Greenwich Observatory · Astronomy
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