Positions of the Principal Planets. PLANET JAN. FEB. Morning Stars. Venus, after September 23. Mars, till November 12. Jupiter, from February 8 to Angust 31. Evening Stars. Venus, till September 23. Mars, after November 12. Venus is brightest August 19 ard October 30: Mars, November 12; Jupiter, August 31; and Saturn, October 3. The following planetary conjunctions occur: January 23, Venus and Jupiter; February 20, Mercury and Jupiter: March 3. Venus and Saturn; March 15, Mercury and Saturn; April 1, Venus and Neptune; May 9, Mars and Jupiter: May 24, Mercury and Neptune; June 30, Mars and Saturn; July 8, Venus and Uranus July 30, Mercury and Uranus; August 14, Mars and Neptune; September 14, Mercury and Uranus; September 26, Mercury an1 Venus. The greatest eastern elongations of Mercury take place March 29, July 27 and November 20; its greatest western elongat ons are: January 16, May 14, September 9 and December 28. Venus is at her greatest eastern (longation July 16, and at her greatest western elongation December 4. Eclipses of Jupiter's Satellites. The Eclipses of Jupiter's Satellites have been carefully calculated and the times of their disappearance and reappearance set down in the National Ephemeris. They are useful in furnishing local time where the longitude is known, or the longitude where correct local time is known. In the following table are given the phases of the eclipses visible here, with the Washington mean time of their occurrence. Between conjunction and opposition the shadow of Jupiter lies to the west or right of the planet (by direct vi ‹ion), where the phenomena should be looked for. After oppos tion the satellites disappear, and reappear on the east or left-hand side of the planet. The satellites are marked in the usual way, by the Roman numerals I, II, III, IV; D means disappears; R, reappears. H. M. S. H. M. H. M. H. M. 10 10 12345 too o 12 3 51 12 4 19 7 304 380 58 7 304 39 a O 5 13 12 4 47 12 515 7 304 40 3 7 304 4 4 7 7 254 44 0 551 59 4 7 254 44 1 96 2 50 59 7 234 45 2 58 3 43 547 254 46 4 1 7 194 49 7 19 4 53 50 1 7 194 51 2 35 7 2 58 40 7 194 51 3 55 35 7 338 3 53 12 41 7 304 42 98517 254 47 37 7 19 4 52 4 56 4 37 4 50 12 6 8 7 304 43 6 8 9 50 7 254 48 I 36 7 19 4 53 5 54 43 9 34 12 6 347 304 44 rises. 10 477 254 49 rises. 211 39 7 244 50 5 7 33 7 19 4 54 rises. 45 10 rises. 88 237 19 7 194 38 555 14 194 57 7 36 7 19 4 58 8 47 45 11 38 8 22 45 12 7 45 9 2 33 13 8 519 44 7 184 59 9 57 35 14 9 57 10 27 7 185 7 18 7 175 2 41 7 173 3 I 0 251 352 7 173 2 157 215 1 I 16 6 3 57 6 8 7 165751 2 12 7 135 8 5 56 sets. 77 135 9 sets. 27 8 50 7 145 10 12 12 367 205 5 12 12 30 7 205 69 43 1 52 7 155 10 9 43 11 147 15 15 9 42 12 13 2 7 195 810 44 2 28 7 155 12 10 43 11 507 115 16 10 41 12 13 14 7 185 911 46 3 4 7 145 1311 43 morn. 7 10 5 17 11 40 12 13 24 7 175 10 morn. 3 43 7 135 14 morn. o 29 7 9.5 18 morn. 12 13 34 165 11 0 48 4 27 7 125 150 44 1 13 12 13 437 155 13 1 51 5 187 115 17 1 46 2 7 125 13 8626 43 7266696 7 4 7 5 19 0 40 7 20 1 41 I morn. 2 O 20 35 1510 5311 11 32 7 15 23 45 47 8 595 26 8 44 9 51 3 575 30 morn. morn. 565 31 0 27 0 36 22 sets. 7 20 3 6 565 32' 1 25 1 17 |