Time's TelescopeSherwood, Gilbert and Piper, 1833 - Almanacs, English |
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Page 8
MERCURY , if the nearest planet to the sun , never beholds a crescent luminary ;
Venus , at certain positions of her orbit , exbibits a gibbous phase in the same
way that Mars sometimes appears of this form to the earth . From this planet all
the ...
MERCURY , if the nearest planet to the sun , never beholds a crescent luminary ;
Venus , at certain positions of her orbit , exbibits a gibbous phase in the same
way that Mars sometimes appears of this form to the earth . From this planet all
the ...
Page 90
The recurrence of the transits of Mercury depends on four of his revolutions being
nearly equal to one revolution of the earth , or according to the following ratio :7
revolutions of the Earth = 29 revolutions of Mercury . 13 64 33 = 137 46 = 191 ...
The recurrence of the transits of Mercury depends on four of his revolutions being
nearly equal to one revolution of the earth , or according to the following ratio :7
revolutions of the Earth = 29 revolutions of Mercury . 13 64 33 = 137 46 = 191 ...
Page 91
A transit occurs when Mercury is in his nodes ( those points where the orbit
intersects the ecliptic ) , and the earth is in the same longitude . The node , from
which Mercury ascends northward above the ecliptic , is in longitude 46 ° 14 ' 29 "
.2 ...
A transit occurs when Mercury is in his nodes ( those points where the orbit
intersects the ecliptic ) , and the earth is in the same longitude . The node , from
which Mercury ascends northward above the ecliptic , is in longitude 46 ° 14 ' 29 "
.2 ...
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