Fourteen Weeks in Descriptive Astronomy |
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Page 47
... miles an hour , would require 341 years to reach its desti- nation . Ten generations would be born and would die ; the young men would become gray - haired , and their great - grandchildren would forget the story of the beginning of ...
... miles an hour , would require 341 years to reach its desti- nation . Ten generations would be born and would die ; the young men would become gray - haired , and their great - grandchildren would forget the story of the beginning of ...
Page 48
... miles in diameter and 200,000 miles long were plunged , end first , into the sun , it would melt in a second of time . APPARENT SIZE . - It appears to be about a half de- gree in diameter , so that 360 disks like the sun , laid side by ...
... miles in diameter and 200,000 miles long were plunged , end first , into the sun , it would melt in a second of time . APPARENT SIZE . - It appears to be about a half de- gree in diameter , so that 360 disks like the sun , laid side by ...
Page 52
... miles in diameter . Sir J. W. Herschel calculated that one which he saw was 50,000 miles in diameter . In 1843 one was seen which was 14,816 miles across , and was visible to the naked eye for an entire week . On the day of the eclipse ...
... miles in diameter . Sir J. W. Herschel calculated that one which he saw was 50,000 miles in diameter . In 1843 one was seen which was 14,816 miles across , and was visible to the naked eye for an entire week . On the day of the eclipse ...
Page 53
... miles long , and had an area of twenty - five billion square miles . If these are deep openings in the luminous atmos- phere of the sun , what an abyss must that be at " the bottom of which our earth could lie like a boulder in the ...
... miles long , and had an area of twenty - five billion square miles . If these are deep openings in the luminous atmos- phere of the sun , what an abyss must that be at " the bottom of which our earth could lie like a boulder in the ...
Page 60
... miles long , to lofty , piled - up , mountain- ous regions 40,000 miles long and 4,000 broad . Out- side of the spots , the entire disk of the sun is covered with minute shady dots , giving it a mottled appear- ance not unlike that of ...
... miles long , to lofty , piled - up , mountain- ous regions 40,000 miles long and 4,000 broad . Out- side of the spots , the entire disk of the sun is covered with minute shady dots , giving it a mottled appear- ance not unlike that of ...
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Common terms and phrases
ancients Andromeda angle aphelion appearance Aries astronomers atmosphere axis body Boötes bright brilliant Canis Minor Capricornus Cassiopeia celestial centre Cepheus circle color comet conjunction constellation Cor Caroli dark density Describe diameter disk Draco earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light lunar Lyra magnitude Mars mean distance Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune node north pole orbit Orion parallax pass path penumbra perihelion Perseus Pisces planet Polaris precession rays revolve ring rising Saturn seasons seen shadow shines shower sidereal sidereal day solar day solar system space spots summer sun's superior planet surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major Ursa Minor varies velocity Venus vernal equinox visible zodiac