Handbook of Astronomy |
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Page xv
... Greatest elongation · - 313 Scale of the orbit relatively to that of the earth 314 Apparent motion of the planet 315. Conditions which favour the ob servation of an inferior planet 316. Apparent diameter . its mean and extreme values ...
... Greatest elongation · - 313 Scale of the orbit relatively to that of the earth 314 Apparent motion of the planet 315. Conditions which favour the ob servation of an inferior planet 316. Apparent diameter . its mean and extreme values ...
Page xvii
... Greatest duration of total eclipse 315 531. Relative number of solar and lunar eclipses - 532. Effects of the earth's penumbra ib . 533. Effects of refraction of the earth's atmosphere in total eclipses 534. The lunar disk visible ...
... Greatest duration of total eclipse 315 531. Relative number of solar and lunar eclipses - 532. Effects of the earth's penumbra ib . 533. Effects of refraction of the earth's atmosphere in total eclipses 534. The lunar disk visible ...
Page 10
... greatest practicable magnifying and illuminating powers , and so mounted as to enable the observer with all the requisite facility to present them to those parts of the heavens in which the objects of his observation are placed . To ...
... greatest practicable magnifying and illuminating powers , and so mounted as to enable the observer with all the requisite facility to present them to those parts of the heavens in which the objects of his observation are placed . To ...
Page 31
... greatest degree of artistic skill , it was nevertheless so unstable as to produce errors in the determination of time , which it was possible , and therefore desir- able , to remove by introducing improved principles of construction ...
... greatest degree of artistic skill , it was nevertheless so unstable as to produce errors in the determination of time , which it was possible , and therefore desir- able , to remove by introducing improved principles of construction ...
Page 35
... greatest importance that an easy , expeditious , and safe apparatus for rever- sion should be provided . This was contrived with great ingenuity by the makers , and attended with the most successful results , re- sults to which M ...
... greatest importance that an easy , expeditious , and safe apparatus for rever- sion should be provided . This was contrived with great ingenuity by the makers , and attended with the most successful results , re- sults to which M ...
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Common terms and phrases
altitude aphelion apparent diameter apparent magnitude apparent motion appear ascertained Astronomer Royal astronomical atmosphere attraction axis azimuth bodies C. H. F. Peters celestial equator celestial sphere centre circle clock comet conjunction density determined direction disk diurnal diurnal motion earth ecliptic edge effect elongation Engineering equal equatorial equinoxial points excentricity feet firmament fixed globe greater greatest Greenwich heavens hemisphere Herschel horizon increase inferior conjunction inferior planet instrument interval Jupiter latitude length less light line of collimation longitude lunar mass mean distance measured meridian moon moon's move nearly nebula object Observatory observed orbit parallax pendulum perihelion period phenomena planet Plate polar pole position prime vertical produced ratio represented revolution revolve right angles right ascension ring rotation satellites Saturn seen sidereal solar system sphere spots stars sun's superior conjunction supposed surface synodic period telescope terrestrial tion transit Uranus velocity visible visual wires zenith
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