------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2323 2007 Apr 09 15.01UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- COMET C/2007 E2 (LOVEJOY) Further to the discovery announcement on TA E-Circular 2317, various updated orbital elements have been made available which show, (latest on MPEC 788), that the comet will be visible in Northern skies: T 2007 Mar 27.5160 TT w 340.54900 ) e 1.00000000 O 232.43800 ) 2000.0 q 1.0930400 A.U. i 95.88900 ) Positions are geocentric Ephemeris by Guy Hurst using EPH.EXE by Nick James: m = 9.5 + 5.0 log R + 10.0 log r Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 2007 Apr 8.00 20 2.87 -30 4.8 0.655 1.109 81.2 9.0 256 341 9.00 20 0.19 -28 25.0 0.635 1.112 82.4 9.0 272 341 10.00 19 57.40 -26 38.6 0.615 1.115 83.6 8.9 290 341 11.00 19 54.49 -24 45.2 0.596 1.119 84.8 8.9 309 341 12.00 19 51.44 -22 44.4 0.578 1.122 86.1 8.8 329 341 13.00 19 48.27 -20 35.6 0.560 1.126 87.4 8.8 350 341 14.00 19 44.95 -18 18.6 0.544 1.130 88.7 8.7 372 341 15.00 19 41.48 -15 52.9 0.528 1.134 90.1 8.7 395 341 16.00 19 37.85 -13 18.4 0.513 1.139 91.5 8.6 419 341 17.00 19 34.05 -10 34.9 0.499 1.143 92.9 8.6 443 341 18.00 19 30.07 -7 42.4 0.487 1.148 94.3 8.5 466 341 19.00 19 25.90 -4 41.4 0.475 1.153 95.8 8.5 489 341 20.00 19 21.54 -1 32.2 0.466 1.159 97.2 8.5 510 341 21.00 19 16.96 +1 44.2 0.457 1.164 98.5 8.5 528 341 22.00 19 12.17 +5 6.8 0.451 1.170 99.8 8.5 544 340 23.00 19 7.15 +8 34.2 0.446 1.176 101.1 8.5 556 340 24.00 19 1.90 +12 4.7 0.443 1.182 102.2 8.5 564 340 25.00 18 56.40 +15 36.4 0.442 1.188 103.2 8.5 567 339 26.00 18 50.64 +19 7.5 0.443 1.194 104.1 8.5 565 338 27.00 18 44.63 +22 36.0 0.446 1.201 104.9 8.5 559 338 28.00 18 38.34 +25 59.9 0.450 1.208 105.5 8.6 548 337 29.00 18 31.79 +29 17.6 0.456 1.215 106.0 8.6 533 336 30.00 18 24.96 +32 27.5 0.464 1.222 106.3 8.7 515 335 2007 May 1.00 18 17.85 +35 28.6 0.474 1.229 106.4 8.8 494 333 2.00 18 10.47 +38 19.8 0.485 1.236 106.5 8.9 471 332 3.00 18 2.82 +41 0.6 0.498 1.244 106.4 8.9 448 331 4.00 17 54.91 +43 30.7 0.512 1.251 106.2 9.0 424 329 5.00 17 46.75 +45 49.9 0.527 1.259 105.9 9.1 399 327 An extension to the above appears in the April issue of The Astronomer magazine (in press). Guy Hurst