Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to Those who Have Not Studied Mathematics : to which are Added, a Plain Method of Finding the Distances of All the Planets from the Sun, by the Transit of Venus Over the Sun's Disc, in the Year 1761 : an Account of Mr. Horrox's Observation of the Transit of Venus in the Year 1639 : And, of the Distances of All the Planets from the Sun, as Deduced from Observations of the Transit in the Year 1761Matthew Carey, 1809 - 533 páginas |
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Página 16
... falls on its primary , then , with respect to that part of the primary on which the shadow falls , the sun is said to be eclipsed . Ecliptic limit , is a certain distance from the node of the secondary's orbit , beyond which no eclipse ...
... falls on its primary , then , with respect to that part of the primary on which the shadow falls , the sun is said to be eclipsed . Ecliptic limit , is a certain distance from the node of the secondary's orbit , beyond which no eclipse ...
Página 18
... falls back two letters , or leaps over one . See Bissextile . Libration of the moon , a small apparent libratory motion , arising chiefly from her equable rotation round her axis , combined with her unequal motion in her orbit ...
... falls back two letters , or leaps over one . See Bissextile . Libration of the moon , a small apparent libratory motion , arising chiefly from her equable rotation round her axis , combined with her unequal motion in her orbit ...
Página 21
... falling obliquely upon , and passing through , the earth's atmosphere . This is greatest in the horizon , and entirely vanishes in the zenith . Retrograde motion of a planet , that by which it appears to the observer to move contrary to ...
... falling obliquely upon , and passing through , the earth's atmosphere . This is greatest in the horizon , and entirely vanishes in the zenith . Retrograde motion of a planet , that by which it appears to the observer to move contrary to ...
Página 31
... Fall the sciences cultivated by mankind , The gene- astronomy is acknowledged to be , and astrono undoubtedly is , the most sublime , the most inter- my . esting , and the most useful . For , by knowledge derived from this science , not ...
... Fall the sciences cultivated by mankind , The gene- astronomy is acknowledged to be , and astrono undoubtedly is , the most sublime , the most inter- my . esting , and the most useful . For , by knowledge derived from this science , not ...
Página 53
... falling obliquely into it be- fore the other , ought , by refraction , to have suffered some change in its colour , or in its distance from the other star , which was not yet entered into the atmos- phere . But no such alteration could ...
... falling obliquely into it be- fore the other , ought , by refraction , to have suffered some change in its colour , or in its distance from the other star , which was not yet entered into the atmos- phere . But no such alteration could ...
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Términos y frases comunes
angle apogee appears April Aries ascending node body circle Clock conjunction Constantinople degrees diameter Digits diurnal motion Dominical letter Earth's axis Earth's centre Earth's shadow equal equator equinoctial equinox fall fixed stars full Moon globe goes round half heavens horizon horizontal parallax inclined Julian period July June Jupiter latitude Leap-Year London longitude lunar March 28 mean Anomaly mean distance mean new Moon Mercury meridian miles minutes Moon's orbit motion noon north pole observed old style opposite parallax parallel penumbra perigee planets plate revolution right line rising round the Earth round the Sun satellites Saturn seconds seen semidiameter Sept shew shewn side signs solar subtract Sun and Moon Sun's centre Sun's disc Sun's mean tion total ingress transit transit of Venus tropic tropic of Cancer tropic of Capricorn true turns round Venus Venus's visible