A complete diary, or an almanack for ... 1820. The author's 1st impr

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Esimerkkisivuja

Sisältö

Muita painoksia - Näytä kaikki

Yleiset termit ja lausekkeet

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Sivu 43 - In northern latitudes, the autumnal full moons are in Pisces and Aries ; and the vernal full moons in Virgo and Libra. In southern latitudes, just the reverse, because the seasons are contrary. But Virgo and Libra rise at as small angles with the horizon in southern latitudes, as Pisces and Aries do in the northern; and therefore the harvest moons are just as regular on one side of the equator as on the other.
Sivu 43 - At the polar circles, where the mild season is of very short duration, the autumnal full Moon rises at sunset from the first to the third quarter. And at the poles, where the Sun is for half a year absent, the winter full Moons shine constantly without setting, from the first to the third quartet.
Sivu 43 - Moon rises very soon after sunset, for several evenings together. At the polar circles, where the mild season is of very short duration, the autumnal full Moon rises at sunset from the first to the third quarter.
Sivu 44 - ... least occasion for moon-light : in winter they go high, and stay long above the horizon, when the nights are long, and we want the greatest quantity of moon-light. At the poles, one half of the ecliptic never sets, and the other half never rises; and therefore, as the sun is always half a year in describing one half of the...
Sivu 44 - ... at the beginning of Libra in her third quarter ; having been visible for fourteen revolutions of the earth on its axis, viz. during the moon's passage from Aries to Libra. Thus the north pole is supplied one half of the winter time with constant moonlight in the sun's absence ; and the inhabitants only lose sight of the moon from her third to her first quarter, while she gives but little light, and can be of little or no service to them.
Sivu 31 - Day. — The Exchequer opens eight days before any term begins, except Trinity, before which it opens but four days.
Sivu 43 - The moon's path may be considered as nearly coinciding with the ecliptic ; and all these phenomena are owing to the different angles made by the horizon and different parts of the moon's orbit, or in other words, by the moon's orbit lying sometimes more oblique to the horizon than at others. In the latitude of London...
Sivu 44 - September ; it is plain that the Moon when full, being opposite to the Sun, must be below the horizon during that half of the year. But when the Sun is in the southern half of the ecliptic, he never rises to the north pole ; during...
Sivu 43 - ... angles. In northern Latitudes, the smallest angle made by the Ecliptic and horizon, is when Aries rises, at which time Libra sets ; the greatest, when Libra rises, at which time Aries sets. From the rising of Aries to the rising of Libra, (which is...
Sivu 43 - At the polar circles, when the sun touches the summer tropic* he continues 24 hours above the horizon ; and 24 hours below it when he touches the winter tropic. For the same reason the full moon neither rises in the summer, when she is not wanted ; nor sets in the winter when her presence is so necessary.

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