A Manual of Spherical and Astronomy: Embracing the General Problems of Spherical Astronomy, and the Theory and Use of Fixed and Portable Astronomical Instruments. With an Appendix on the Method of Least Squares, Volume 1J.B. Lippincott & Company, 1864 - Astronomical instruments |
Contents
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Common terms and phrases
accuracy ascension and declination assumed axis azimuth BESSEL celestial celestial sphere centre chro chronometer clock correction co-ordinates computation constant Corr corresponding cos² cosec curve d₁ deduced denote determine difference of longitude earth eclipse employed Ephemeris equations equinox expressed formula geocentric given gives Greenwich mean h₁ hence horizon hour angle instant instrument interpolation interval latitude logarithms meridian meridian altitude method METHOD.-BY moon moon's limb nearly noon nutation obtain P₁ parallax place of observation plane pole position precession precision prime vertical probable error quantities radius reduced refraction right ascension semidiameter sextant sidereal sin² solar solar eclipse star star's substitute sun's T₁ taken term tion transit triangle true vertical circle whence zenith distance Δα