Fourteen Weeks in Descriptive Astronomy |
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Page 144
... lunar inhabitants on the side toward us , the earth must present to them all the phases which their world exhibits to us , only in a reverse order . When we have a new moon , they have a full earth , a bright full - orbed moon fourteen ...
... lunar inhabitants on the side toward us , the earth must present to them all the phases which their world exhibits to us , only in a reverse order . When we have a new moon , they have a full earth , a bright full - orbed moon fourteen ...
Page 147
... lunar month . Moon runs high or low . - All have , doubtless , no- ticed that , in the long nights of winter , the full moon is high in the heavens , and continues a long time above the horizon ; while in midsummer it is low , and ...
... lunar month . Moon runs high or low . - All have , doubtless , no- ticed that , in the long nights of winter , the full moon is high in the heavens , and continues a long time above the horizon ; while in midsummer it is low , and ...
Page 150
... LUNAR SEASONS ; DAY AND NIGHT , ETC. - As the moon's axis is so nearly perpendicular to her orbit , she cannot properly be said to have any change of seasons . During nearly fifteen of our days , the sun pours down its rays unmitigated ...
... LUNAR SEASONS ; DAY AND NIGHT , ETC. - As the moon's axis is so nearly perpendicular to her orbit , she cannot properly be said to have any change of seasons . During nearly fifteen of our days , the sun pours down its rays unmitigated ...
Page 152
... lunar mountains have been measured , some of which exceed 20,000 feet . The shadows of the mountains , as the sun's rays strike them obliquely , are as distinctly perceived as that of an upright staff when placed opposite the sun . Some ...
... lunar mountains have been measured , some of which exceed 20,000 feet . The shadows of the mountains , as the sun's rays strike them obliquely , are as distinctly perceived as that of an upright staff when placed opposite the sun . Some ...
Page 154
... lunar maps the " Sea of Tranquillity , " the " Sea of Nec- tar , " " Sea of Serenity , " etc. Rills , luminous bands . - The latter are long bright streaks , irregular in outline and extent , which radi- ate in every direction from ...
... lunar maps the " Sea of Tranquillity , " the " Sea of Nec- tar , " " Sea of Serenity , " etc. Rills , luminous bands . - The latter are long bright streaks , irregular in outline and extent , which radi- ate in every direction from ...
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Common terms and phrases
ancients Andromeda angle aphelion appear Aries astronomers atmosphere axis Boötes bright brilliant Canis Minor Capricornus Cassiopeia cause Celestial Sphere centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior conjunction inferior planet Jupiter latitude length light luminous lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon's motion move naked eye nearly nebula Neptune night node north pole Orion parallax pass path penumbra perihelion Perseus Pisces polar Polaris precession rays revolve ring rising Saturn seasons seen shine side sidereal sidereal day solar day solar system solstice space spots summer sun's surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible winter Zodiac