COMETARY INTELLIGENCE. FAYE'S COMET. The following ephemeris of this body is by M. Möller, of Lund : The comet is in Pisces in the early part of the month, but passes into Aquarius about the 15th. BIELA'S COMET. The following ephemeris of this body is by M. Michez, of Padua : 1865. : Sept. 2... 0 17 10 +23 27.9 ... 7 ...0 13 31 ...+23 44'7 12... O 8 56...+23 53'9 Decl. 3 28...+23 540 22...23 57 5 ...+23 43'I 27...23 49 59 +23 20°3 ... The comet is on the confines of Pegasus, Andromeda, and Pisces throughout the month. COMET IV. OF 1862. M. Galle, of Breslau, has executed a careful investigation of the orbit of this comet, and finds the elements to be as follows: Perihelion passage, 1822, Dec. 28.21, B.M.T. Astronomical Occurrences for September 1865. Principal Occurrences h. m. Sidereal Time at Mean Noon, 11 41 47'0 Venus, 4° 58' N. Sun 17 9 314 Mars, 1° 9' N. Wed 20 22 55 Conjunction of Moon and 2nd Ec. R. 7 40 45 9 33.8 99 1st Oc. D. Mon 25 7 36 Near approach of Moon to 3rd Sh. E. x Ophiuchi (6) 8 25 Conjunction of Venus and 936.1 9369 Regulus, 0° 10' S. Tues 26 13 4 Conjunction of Moon and Jupiter, 4° 28' S. Regulus, 2m 2 W. 19 38 Conjunction of Venus and Wed 27 14 47 > Moon's First Quarter Thur 28 Fri 29 Sat 30 9 45 Near approach of Moon to 8 Aquarii (6) THE PLANETS FOR SEPTEMBER. Mercury may be seen in the mornings about the 22nd of the month in the constellation Leo. It passes its inferior conjunction on the 7th, and arrives at its greatest westerly elongation on the 23rd. 1st R.A. 11 17 I Dec. S. O TO Diameter 10" 6 30th 11 33 38 I Venus continues to be a fine object in the mornings, rising between 1 and 2 o'clock at the beginning, and between 2 and 3 o'clock at the end of the month. It passes from Cancer to Leo. As it is an excellent object for the transit instrument, we have given its meridian passage, which takes place shortly after 9 in the morning, for a portion of the month. 1st R.A. 8 038 30th 10 18 10 Dec. N. 19 38 Diameter 15" 4 Illuminated portion of the disc of Venus=0*754. 13" 2 Mars continues to approach the Sun, and cannot be favourably observed. Jupiter sets about half-past 10 at the beginning, and at about a quarter to 9 at the end of September. It continues in the constellation Ophiuchus. 7 Dec. S. 22 50 23 5 Diameter 37"0 34" 2 1st R.A. 17 14 45 30th 99 17 26 Saturn remains in the constellation Virgo, but is now scarcely to be observed, as it is getting rapidly nearer to the Sun. 1st R.A. 13 43 36 Dec. S. 8 15 30th 22 13 55 4 Dimensions of ring-Outer major axis, 35"6; Outer minor axis, 9′′'9. Uranus remains in the constellation Gemini, and is visible throughout the night. Neptune is well situated for observation this month; it is in the constellation Pisces. The following are the minor planets which will arrive at opposition this month. Full particulars will be found in the Supplement to the Nautical Almanac for 1868: INSTRUMENTS, &c., FOR SALE. These Notices, which are restricted to three lines each, are inserted free of charge to subscribers: applications respecting prices and other particulars to be made to the Editor, with a stamped envelope for reply, without which no answer can be sent.-For Advertisements with prices and more complete details, a small charge will be made. N. B. It is particularly requested that we may be informed when instruments are disposed of, in order that the notice may be withdrawn, and fruitless applications prevented. Achromatic Refractor, 7in. aperture, 9ft. focus, by Troughton & Simms; 5 celestial and I terrestrial eye-pieces; on large garden Equatorial stand, with patent steadying rods, &c. [54] Equatoreal Telescope, 5 ft. focus, 4 in. aperture, powers 60, 340, and 450, on extra stout mahogany tripod stand, steadying rods, levels, large finder, &c., complete. [18] Achromatic Refractor, 60 in. focus, 4 in aperture, powers 60, 120, 200, and terrestrial eye-piece; by Goddard: on improved garden stand, with finder &c., complete : price low. [60] Achromatic Refractor, 4 ft. focal length, 31 in. clear aperture, by Wray; with two celestial and one terrestrial eye-pieces; on garden stand. [46] Achromatic Refractor, 4 ft. focal length, 3 in. aperture, on brass tripod stand, with achromatic finder, 3 celestial and 3 terrestrial eye-pieces, &c. [20] Newtonian Reflector, 7 ft. focus, 7in. aperture, eight eye-pieces, powers from 30 to 360, Equatoreally mounted. [11] Transit Instrument, 5 ft. focus, 3 in. aperture, Ys fitted with agates, for mounting on stone piers. [29] [55] [16] Equatorial Stand, adapted for a 5 or 6ft. telescope: 13in. circles divided on silver, reading to 10" of space and 4s. of time.-Has never been used. Equatorial Stand for a 4 or 5ft. telescope; 8in. circles, divided on silver; with verniers and microscopes, tangent screw motions, &c., in case. [51] Improved Varley Stand, with rackwork movements, adapted for a telescope of 5 or 6 ft. focus: fixed upon a circular turn-table, so as to be easily pointed in any direction. Polar Axis of mahogany, 7ft. long, adapted for a 4ft. telescope, with 12in. circles, reading to minutes. [56] Speculum Grinding Apparatus, capable of working a 7ft. speculum with tube and fittings for a gin. Newtonian. [57] Brass Orrery and Tellurium, (one or both) designed by and formerly the property of the late Dr Pearson, and purchased by the present owner at his sale of instruments in 1853. [59] Recreative Science: complete in numbers, half-price. [30] FO OR SALE-an excellent REFLECTING TELESCOPE, focal length 7 ft., aperture 7 inches, mounted so far Equatorially that with a little care it may be turned on a star or planet in the day-time.-Four Eye-pieces.-Price £20 only, (less than the cost of the stand), the proprietor having mounted a larger instrument. [11]F |