Publisher's Synopsis
Excerpt from The Observatory, Vol. 23: A Monthly Review of Astronomy
M. Loewy has again favoured us with advance-proofs from which we hate obtained the Variable Star Ephemerides. The occultations of stars by the Moon, the phenomena of J upiter's Satellites, and the diagrams and Ephemerides of the Satellites of the other planets are from the 'nautical Almanac.' The Ephemeris of the disk of Mercury and that of Jupiter V. Are from the American N antical Almanac.' We are indebted to Mr. Crommelin for the approximate Ephe meris of Eros near the time of its opposition, which is computed from Chandler's elements in Ast. J ourn. N o. 452, without taking account of perturbations.
The Fraction of the Year is the fraction which has elapsed at. Mean noon of the particular day from mean noon on January I. The Moon's declination is given for mean midnight. The Lon gitude of the Moon's Terminator is given for mean midnight; the letters M. And E. Signifying morning and evening - that is, that the Sun is rising or setting on that particular longitude of the Moon's surface; the sign indicates longitudes reckoned from the central meridian in a westward direction. The angles of disappearance and reappearance for occultations are reckoned from the true north in the direction N. E. S. \v., as for double stars.
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