THE numbers in this table are the versed sines of that portion of the disks which, to an observer on the Earth, will appear to be illuminated, the apparent diameters of the planets at the time being considered as unity. To a spectator on the Earth, Venus appears most brilliant when her elongation is about 40°, and she is approaching her inferior conjunction, or receding from it; in the latter of which positions she will be on the 21st of January. Mars is most brilliant about the time of his opposition to the Sun, being then also nearest the Earth; in which position he will not be this Position and Magnitude of the Rings of Saturn, according to Bessel and Struve, for every Fortieth Day in the Year, at 7 hours in the Morning. a denotes the outer semi-transverse axis of the outer ring. "outer semi-conjugate axis of the outer ring, positive when the 66 to the circle of declination; + when East, when West. angle of elevation of the Earth above the plane of the rings, as seen from Saturn; when North, - when South. "angle of elevation of the Sun above the plane of the rings, as seen from Saturn; + when North, – when South. The inner semi-transverse axis of the inner ring is two thirds of a, diminished by 0".07. The inner semi-conjugate axis of the inner ring is two thirds of b. The Opposition will take place on the 24th of October. LATITUDE AND LONGITUDE OF THE PRINCIPAL PLACES IN THE UNITED STATES, ETC., WITH THEIR DISTANCES FROM WASHINGTON. [The Longitudes are reckoned from Greenwich.] The Capitals (Seats of Government) of the States and Territories are designated by Italic Letters. Castine, Burlington, Camden, Canandaigua, Cape Ann (North Light), Do. (South Light), Cape Cod (Light-House), Charleston (St. Mich.'s Ch.), S. C. 32 46 33 79 57 275 19 49.8 544 Charlestown (Navy Yard), 40 5 10 74 52 374 59 30.5 156 73 10 4 52 40 440 Mass. 42 22 48.671 8 04 44 32 431 S. C. 34 17 68 45 14 35 Mass. 42 22 71 3 334 44 14.2 433 Chicago, Cincinnati (Fort Wash'n), Columbia, Columbus, Dayton, 33 57 Ohio. 39 57 Concord (State-House), . Dedham (1st Cong. Ch.), Detroit, Dorchester (Ast. Observ.), Newark, Natchez (Fort Panmure), 91 24 426 5 38.81146 74 10 4 56 40 New Bedford (Mariner's Ch.), Mass. 41 387 70 55 494 43 43.3 429 Newbern, Newburg, Newburyport (2d Presb. Ch.), Newcastle, . New Orleans (City Hall), Newport (Court-House), New York (City Hall), Nobsque Point Light,. Norfolk (Farmers' Bank), N. C. 35 20 77 5 5 8 20 337 74 1 4 56 4 282 70 49 64 42 18.0 469 103 71 19 124 45 16.8 403 74 1 84 56 4.5 226 70 39 374 42 38.5 450 76 18 475 5 15.1 217 72 38 154 50 33.2 376 72 7 4 48 28 362 87 10 125 48 40.81050 70 52 474 43 31.1 466 42 48 30 39 40 75 33 5 2 8 C nn. 41 18 30 Conn. 41 22 41 29 40 42 40 41 30 57 36 50 50 Mass. 42 19 9 Conn. 41 33 30 24 |