CATALOGUE. — ASTEOXOMV, CELESTIAL APPEARAXCES. 



345 



Kieson the greatest brightness of Venus. 



A. Berl. 1750. 218. 

 Ubsher on the disappearance of Saturn's 



ring. Ir. tr. 1789. III. 135. 

 Bode on the disappearance of Saturn^s ring. 



Ph. M. XV. 219. 

 Calkoen ou the disappearance of Saturn's 



ring. Ph. M. XV. 222. 



Appearances of the Secondary 

 Planets. 



Moon. 

 Cassini on the libration of the moon. A. P. 



1721. 168. H.53. 

 Lalande on the lunar Ubration. A. P. 1764. 



555. H. 112. 

 Dionis du Sejour on the faint light of the 



new moon. A. P. 1776. 



This light is a minimum at 43" elongation, a maximum 

 at 0° and at 69° ; at 90° about half the greatest quantity. 



Kastner on the phases of the moon. Com- 



mentat Goit. 1780. III. M. I. 

 Harvest moon. O. Gregory's astronomy, 



C. .\vi. Cavallo. IV. 143. 



Appearances of the Sun and pri- 

 mary Planets jointly. ' 



Transits. 

 See Practical Astronomy. 



Appearances of the fixed Stars 

 and Moon. 



Occultations, Vince's Astronomy. O.Gre- 

 gory's Astronomy. 



Appearances of the Sun and Moon 

 jointly. 



Eclipses. 

 Flamstead's method of calculating eclipses. 

 Moore's system of Mathematics. I. 



VOL. II. 



Plantade and Clapiers on a lunar eclipse 

 from the earth's penumbra. A. P. 1702. 

 H. 73. 



PIi. tr. 1706. XXV. 2240. 



In a total eclipse ol the sun, 12 May, 1706, a streak of 

 light was observed 0" or 7" belbre the sun's disc : hence 

 Flamsfead infers a lunar atmosphere jJjth of the moon's 

 diameter in height : but this might have been from oblique 

 reflection. 



Duillier on a total eclipse of the sun. Ph. tr. 

 1706. XXV. 2241. 



A whiteness was seen round the moon, one twelfth of 

 her diameter in extent ; and a white halo 4 or 5 degrees 

 in diameter beyond it : this vanished soon after the sun re- 

 appeared : hence he hifers a lunar atmosphere of 130 geo- 

 graphical miles in height, and deduces the halo from the 

 solar atmosphere. Many stars were seen during the eclipse. 



Halley on a total eclipse of the sun seen in 

 London. Ph. tr. 1715. XXIX. 245. 



A ring of light surrounded the moon, onesixth of her dia- 

 meter in extent, which seemed to proceed rather from a 

 lunar than from a solar atmosphere : and a line of light was 

 seen lingering behind. Some lightning too was seen. 



Lahire on the ring seen in total eclipses 

 of the sun. A. P. 1715. 161.H.47. 



Delisle's experiment on a ring of light like 

 that which appears in eclipses. A. P. 1715. 

 166. H. 47. 



Delisle and Lahire produced an appearance nearly of th 

 same kind, by interposing an opaque substance, as a ball of 

 stone, between the eye and the sun : but here it might be 

 objected, that the earth's atmosphere supplied the light. 



Louville's geometrical mode of calculating 



eclipses. A. P. 1724. 63. H. 74. 

 Gersten methodus calculi eclipsium. Ph. tr. 



1744. XLIII. 22. 

 Ph. tr. 1748. XLIV. 490. C. Bon, I. 267. 



A brown light was seen beyond the sun's casps, in an 

 eclipse nearly annular. 



Lalande on the effect of ellipticity in 

 eclipses. A. P. 1756. 364. H. 96. 1763. 

 413. 

 Lalande on a kinar eclipse. A. P. 1783. 89. 



Adds 36" to the earth's shadow for the effect of tl?e at- 

 mosphere. 



Y y 



