Outlines of Astronomy |
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Page xi
... motion . Relative motion . Motions partly real , partly apparent . Geocentric astronomy , or ideal reference of phænomena to the Earth's centre as a common conventional station .......... 24 CHAPTER II . Terminology and elementary ...
... motion . Relative motion . Motions partly real , partly apparent . Geocentric astronomy , or ideal reference of phænomena to the Earth's centre as a common conventional station .......... 24 CHAPTER II . Terminology and elementary ...
Page xii
... MOTION . Apparent motion of the sun not uniform . Its apparent diameter also variable . Variation of its distance concluded . Its apparent orbit an ellipse about the focus . Law of the angular velocity . Equable description of areas ...
... MOTION . Apparent motion of the sun not uniform . Its apparent diameter also variable . Variation of its distance concluded . Its apparent orbit an ellipse about the focus . Law of the angular velocity . Equable description of areas ...
Page xiii
... motions of the planets . Their stations and retrogradations . The Sun their natural centre of motion . Inferior planets . Their phases , periods , etc. Dimensions and form of their orbits . Transits across the Sun. Superior planets ...
... motions of the planets . Their stations and retrogradations . The Sun their natural centre of motion . Inferior planets . Their phases , periods , etc. Dimensions and form of their orbits . Transits across the Sun. Superior planets ...
Page xv
... motion of the stars . Partly accounted for by a real motion of the Sun. Situation of the solar apex . Agreement of southern and northern stars in giving the same result . Principles on which the investigation of the solar motion depends ...
... motion of the stars . Partly accounted for by a real motion of the Sun. Situation of the solar apex . Agreement of southern and northern stars in giving the same result . Principles on which the investigation of the solar motion depends ...
Page 24
... MOTION . - RELATIVE MOTION . - MOTIONS PARTLY REAL , PARTLY APPARENT . - GEOCENTRIC ASTRONOMY , OR IDEAL REFERENCE OF PHÆNOMENA TO THE EARTH'S CENTRE AS A COMMON CONVEN- TIONAL STATION . ( 11. ) THE magnitudes , distances , arrangement ...
... MOTION . - RELATIVE MOTION . - MOTIONS PARTLY REAL , PARTLY APPARENT . - GEOCENTRIC ASTRONOMY , OR IDEAL REFERENCE OF PHÆNOMENA TO THE EARTH'S CENTRE AS A COMMON CONVEN- TIONAL STATION . ( 11. ) THE magnitudes , distances , arrangement ...
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Common terms and phrases
altitude amount angle angular appear apsides ascertained astronomers axis bright calculation celestial centre circle comet curve described diameter difference direction disc distance disturbed body disturbing force diurnal diurnal motion double stars earth ecliptic effect ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe gravity greater heavens heliocentric horizon inclination increase inequality instance instrument interval Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian moon moon's motion nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perpendicular perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day sidereal period situation solar sphere spherical stars station sun's suppose syzygies tangential force telescope tion Uranus variation velocity visible whole zenith