An Elementary Treatise on Astronomy. In Two Parts: The First, Containing a Clear and Compendious View of the Theory. The Second, a Number of Practical Problems |
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Page vii
... Nutation of the Earth's Axis . - Annual Parallax of the Fixed Stars , 193 CHAP . XV . Nautical Astronomy , 198 CHAP . XVI . Of the Calendar , 207 CHAP . XVII . Universal Gravitation , and some of its Effects , 213 PART II . Catalogue of ...
... Nutation of the Earth's Axis . - Annual Parallax of the Fixed Stars , 193 CHAP . XV . Nautical Astronomy , 198 CHAP . XVI . Of the Calendar , 207 CHAP . XVII . Universal Gravitation , and some of its Effects , 213 PART II . Catalogue of ...
Page viii
... Nutations of a Star in Right Ascen- sion and Declination , 282 PROB . XVII . To find the Aberrations of a Star in Longitude and Latitude , 284 PROB . XVIII . To find the Nutation of a Body in Longitude , 285 PROB . XIX . The Obliquity ...
... Nutations of a Star in Right Ascen- sion and Declination , 282 PROB . XVII . To find the Aberrations of a Star in Longitude and Latitude , 284 PROB . XVIII . To find the Nutation of a Body in Longitude , 285 PROB . XIX . The Obliquity ...
Page 71
... Nutation . The greatest value of this equa- tion is about 18 " . A table , from which its value may be obtained for any particular time , forms a part of a complete set of solar tables . To obtain the sun's true longitude from the true ...
... Nutation . The greatest value of this equa- tion is about 18 " . A table , from which its value may be obtained for any particular time , forms a part of a complete set of solar tables . To obtain the sun's true longitude from the true ...
Page 193
... Nutation of the Earth's Axis , and the Annual Parallax of the fixed Stars . 1. Dr. Bradley in the course of some accurate ob- servations on the fixed stars , found that their apparent places were subject to small changes , amounting ...
... Nutation of the Earth's Axis , and the Annual Parallax of the fixed Stars . 1. Dr. Bradley in the course of some accurate ob- servations on the fixed stars , found that their apparent places were subject to small changes , amounting ...
Page 196
... NUTATION . 13. Small inequalities , which have been observed in the precession of the equinoxes , and in the mean obliquity of the ecliptic ; are called Nutation . These inequalities were discovered by Dr. Bradley while employed in ...
... NUTATION . 13. Small inequalities , which have been observed in the precession of the equinoxes , and in the mean obliquity of the ecliptic ; are called Nutation . These inequalities were discovered by Dr. Bradley while employed in ...
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Common terms and phrases
altitude angle apparent diameter apparent latitude argument ascension and declination astronomical axis body calculated called circle of latitude consequently corresponding cos² Cosine Diff difference diurnal motion dominical letter earth earth's shadow ecliptic equal equator equatorial parallax Evection fixed stars given Greenwich Hence horizon horizontal parallax Jupiter logarithm longitude and latitude mean anomaly mean distance mean longitude moon's apparent moon's centre moon's hourly motion moon's longitude moon's true motion in longitude Nautical Almanac nearly node noon Nutation obliquity observed obtained parallax parallel perigee perpendicular planet pole quadratures quantities radius vector reduced latitude relative orbit retrograde retrograde motion right ascension satellites semidiameter sidereal Sine solar subtract sun and moon sun's centre sun's longitude sun's mean syzigies Tangent tion triangle true longitude tude universal meridian Venus vernal equinox