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absolute distances absolute mean distance angle of parallax aphelion arrive astro astronomer and photographer Astronomer Royal base line bodies of immense celestial bodies Chief common centre compute contact at ingress cube determining the solar distant stations District Earth Earth's orbit Earth's surface eclipses ellipse Encke favourable G. L. Tupman German astronomer GLASGOW Greenwich half millions hoop Horrocks indicating the Sun's inferior conjunction ingress or egress interior contact Kauai Kepler Kepler's third law Kerguelen Island Lieut method millions of miles ninety-five millions ninety-one nodes nomers object Observatory observing the phenomenon observing the transit obtained planet Neptune planetary system position the planet precise instant preparations for observing radius relative distances represent researches result revolution revolving round rise and set round the Sun Royal Observatory seen solar disc solar parallax space stellar vault Sun's disc Sun's distance superior conjunction tance tion transit of Venus transits of 1761 velocity of light Woahoo zenith
Page 20 - —The squares of the times of revolution of the planets are proportional to the cubes of their mean distances from the Sun. The
Page 66 - the object of so many earnest wishes, I perceived a new spot of unusual magnitude, and of a perfectly round form, that had just wholly entered upon the left limb of the Sun, so that the margin of the Sun and the spot coincided with each other, forming the angle of contact.
Page 66 - the spot coincided with each other, forming the angle of contact." Owing to the near approach of sunset, Horrocks was unable to observe the planet longer than half an hour.
Page 15 - Relation between the Mean Distances of the Planets from the Sun, and their Times of Revolution round
Page 78 - through space at the rate of one hundred and ninety-two thousand miles in a second,
Page 94 - 5. District C. Rodriguez : Chief, Lieut. CB Neate, RN, astronomer; Observers, CE Burton, astronomer and photographer; Lieut. R. Hoggan, RN, astronomer and photographer. " 6. District D. Christchurch (New Zealand): Chief, Major H. Palmer,
Page 96 - Chief, Lieut. C. Corbet, RN ; Observer, Lieut. GE Coke, RN " 8. In addition to these gentlemen, three non-commissioned officers or privates of the Corps of Royal Engineers will be attached to each of the five districts, and will be under the direction of the chief of each district.
Page 78 - the velocity of the Earth in its orbit, and the velocity of light.
Page 93 - 2. When the different expeditions are separated, the observers in each district of observation are responsible to the local chief of the district, and the chief to the Astronomer
Page 95 - Observers, Lieut. L. Darwin, RE, astronomer and photographer ; Lieut. H. Crawford, RN, astronomer. " 7. District E. Kerguelen Island: General Chief, Rev. SJ Perry; Deputy, if necessary, Lieut. C. Corbet, RN " Sub-divisions of the Kerguelen Island :—Christmas Harbour : Chief, Rev. SJ Perry, astronomer and photographer ; Observers,