Handbook of Astronomy |
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Page xi
... vertical in- strument strument 28 · ib . 29 - 32 33 22 J2 3 2 2 M M ib . 21 23 10 . ib . ib . ib . 24 ib . 25 ib . 37 9 50. The Northumberland equatorial , 20. The double image micrometer ib . Cambridge 39 equatorial 41 CHAP . II ...
... vertical in- strument strument 28 · ib . 29 - 32 33 22 J2 3 2 2 M M ib . 21 23 10 . ib . ib . ib . 24 ib . 25 ib . 37 9 50. The Northumberland equatorial , 20. The double image micrometer ib . Cambridge 39 equatorial 41 CHAP . II ...
Page xii
... Vertical circles , zenith , and nadir ib . 94. The celestial meridian and prime vertical Page 72 ib . 22 · · 73 · 95. Cardinal points · 96. The azimuth · 63. If the earth moved , how could its motion be perceived ? 97. Zenith distance ...
... Vertical circles , zenith , and nadir ib . 94. The celestial meridian and prime vertical Page 72 ib . 22 · · 73 · 95. Cardinal points · 96. The azimuth · 63. If the earth moved , how could its motion be perceived ? 97. Zenith distance ...
Page xxii
... vertical instrument 33 278 PLATE IX . The Greenwich altazi- muth instrument 37 PLATE X. The Northumberland equa- torial , Cambridge 39 Neptune · 278 Cavendish experiment 65 Foucault's pendulum experi- ment · 80 - 83 - 101 The gyroscope ...
... vertical instrument 33 278 PLATE IX . The Greenwich altazi- muth instrument 37 PLATE X. The Northumberland equa- torial , Cambridge 39 Neptune · 278 Cavendish experiment 65 Foucault's pendulum experi- ment · 80 - 83 - 101 The gyroscope ...
Page 14
... vertical circle , the plane of which is at right angles to the axis A B. If the axis be exactly directed east and west , this vertical must be the meridian . 24. Its adjustments . - This , however , supposes three condi- tions to be ...
... vertical circle , the plane of which is at right angles to the axis A B. If the axis be exactly directed east and west , this vertical must be the meridian . 24. Its adjustments . - This , however , supposes three condi- tions to be ...
Page 16
... vertically by a finely constructed screw . This support is therefore raised or lowered by such means , until the bubble of the level rests between the central marks a and b , whichever way the level be suspended . - 26. To make the line ...
... vertically by a finely constructed screw . This support is therefore raised or lowered by such means , until the bubble of the level rests between the central marks a and b , whichever way the level be suspended . - 26. To make the line ...
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Common terms and phrases
altitude aphelion apparent diameter apparent magnitude apparent motion appear ascertained astronomical atmosphere attraction axis bodies C. H. F. Peters celestial equator celestial sphere centre circle comet conjunction density determined direction discovered discovery disk diurnal diurnal motion earth ecliptic effect elongation equal equatorial equinoxial points excentricity 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 millions of miles moon moon's move nearly nebula object Observatory observed opposition orbit parallax passes the meridian perihelion period phenomena planet planetary Plate polar pole prime vertical produced ratio refraction 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 tion transit Uranus velocity visible visual wires zenith
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