A text-book of general astronomy : for colleges and scientific schools (1888)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston ; London : Ginn & Company · leaf 245
g, continue total for about twohours, the interval from the first contact to the last being about twohours more. This depends upon the fact that the moons hourlymotion is nearly equal to its own diameter. The whole interval fromfirst contact to last is the time occupied by the moon in moving from… … Fig. 126. — Duration of a Lunar Eclipse. 374. Lunar Ecliptic Limit. — The lunar ecliptic limit is the great-est distance from the node of the moons orbit at which the suncan be consistently with having an eclipse. This limit depends uponthe inclination of the moons orbit, which varies a little, and…
Astronomy
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