Outlines of AstronomyLea & Blanchard, 1849 - 620 стор. |
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Сторінка 8
... Sun. Its distance and magnitude . Copernican explanation of the Sun's apparent motion . Parallelism of the Earth's The seasons . Heat received from the Sun in different parts of the orbit . Mean and true longitudes of the Sun. Equation ...
... Sun. Its distance and magnitude . Copernican explanation of the Sun's apparent motion . Parallelism of the Earth's The seasons . Heat received from the Sun in different parts of the orbit . Mean and true longitudes of the Sun. Equation ...
Сторінка 11
... 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 . Absolute velocity of the Sun's motion . Supposed revolution of ...
... 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 . Absolute velocity of the Sun's motion . Supposed revolution of ...
Сторінка 44
... sun drawing water , ” are similarly caused . They are sunbeams , through apertures in clouds , partially intercepted and ... sun's last direct ray , and , besides , is illuminated by the whole reflective atmosphere P Q RT . It therefore ...
... sun drawing water , ” are similarly caused . They are sunbeams , through apertures in clouds , partially intercepted and ... sun's last direct ray , and , besides , is illuminated by the whole reflective atmosphere P Q RT . It therefore ...
Сторінка 45
... sun has set , receives no direct solar light , nor any , direct or reflected , from all that part of its visible atmosphere which is below APM ; but from the lenticular portion P R x , which is traversed by the sun's rays , and which ...
... sun has set , receives no direct solar light , nor any , direct or reflected , from all that part of its visible atmosphere which is below APM ; but from the lenticular portion P R x , which is traversed by the sun's rays , and which ...
Сторінка 46
... sun , for instance , which at a considerable altitude always appears round , assumes , as it approaches the horizon ... sun's circumference equally raised by refraction , it would still appear circular , though displaced ; but the lower ...
... sun , for instance , which at a considerable altitude always appears round , assumes , as it approaches the horizon ... sun's circumference equally raised by refraction , it would still appear circular , though displaced ; but the lower ...
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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 elements ellipse epoch equal equator equinoctial equinox error exact excentricity fixed globe greater heavens heliocentric horizon inclination increase inequality instance instrument interval Jupiter latitude latter less light longitude lunar magnitude mass mean measure meridian micrometrical moon moon's motion nearly nebula node normal force nutation object observed orbit parallax parallel perigee perihelion period perturbations planet planetary pole portion position precession proper motions proportion recede recess reckoned refraction remarkable rendered respect result revolution right ascension rotation round satellites Saturn seen sidereal sidereal day situation solar sphere spherical stars station sun's suppose surface syzygies tangential force telescope tion Uranus variation velocity visible volume whole zenith