Bouvier's Familiar Astronomy, Or, An Introduction to the Study of the Heavens: Illustrated by Celestial Maps, and Upwards of 200 Finely Executed Engravings, to which is Added a Treatise on the Globes, and a Comprehensive Astronomical Dictionary : for the Use of Schools, Families, and Private StudentsChilds & Peterson, 1857 - 499 σελίδες |
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Σελίδα 128
... eclipses are there ? A. Three partial , total , and annular . An eclipse is said to be central when the centres of the Sun , Moon , and Earth are in one line . This is always the case in total and annular eclipses . Q. What is a PARTIAL ...
... eclipses are there ? A. Three partial , total , and annular . An eclipse is said to be central when the centres of the Sun , Moon , and Earth are in one line . This is always the case in total and annular eclipses . Q. What is a PARTIAL ...
Σελίδα 130
... eclipse may be compared to that produced by a small cloud passing between us and the Sun. The cloud casts a shadow ... eclipse a small circle of darkness , formed by the point of the lunar shadow , creeps along over the surface of the ...
... eclipse may be compared to that produced by a small cloud passing between us and the Sun. The cloud casts a shadow ... eclipse a small circle of darkness , formed by the point of the lunar shadow , creeps along over the surface of the ...
Σελίδα 133
... eclipses from any one point of observation . Q. As there are FEWER lunar eclipses than solar eclipses , how can this be ac- counted for ? A. A solar eclipse is only visible over a small portion of the Earth's surface , but a lunar eclipse ...
... eclipses from any one point of observation . Q. As there are FEWER lunar eclipses than solar eclipses , how can this be ac- counted for ? A. A solar eclipse is only visible over a small portion of the Earth's surface , but a lunar eclipse ...
Περιεχόμενα
PHYSICAL ASTRONOMY | 15 |
Angular Measurement | 27 |
VLSatellites | 60 |
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Bouvier's Familiar Astronomy, Or an Introduction to the Study of the Heavens ... Hannah Mary Bouvier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Bouvier's Familiar Astronomy, Or an Introduction to the Study of the Heavens ... Hannah Mary Bouvier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
altitude angular appear Argo Navis Aries asteroid astronomical attraction axis azimuth Boötes brass meridian bright star called celestial centre circle comet constella constellation Cor Caroli degrees diameter disc discovered discovery distance double stars Earth Earth's orbit east eclipse equal equator equinoctial equinox figure fixed stars globe gravity heavenly bodies heavens hemisphere horizon hundred instrument Jupiter known latitude longitude lunar magnitude Mars means Mercury month Moon Moon's motion move nebula node northern object observations Observatory orbit parallax parallel passing perihelion period planet Polar pole Pole Star position principal star quadrant rays of light refraction represents revolution revolve round right ascension ring rising round the Sun satellite Saturn seen shadow sidereal Sir William Herschel Sirius situated solar southern constellation sphere Sun's place supposed surface telescope tion transit Uranus Ursa Ursa Major velocity Venus vertical visible zenith zodiac