True time. mean time R.ascension Northern Longitude Northern observed. declinati- observed Latitude 1764 on observ. observed h ' " h ' " d ' " d ' " d ' " d ' " Jan. 3 9 24 33 9 29 9 236 29 16 58 32 58 281 37 16 72 53 48 15 5 4 15 9 47 239 45 31 58 51 29 284 49 7 74 22 13 18 48 55 18 53 42 241 56 1 59 2 54 287 9 14 75 19 50 10 16 10 39 16 18 28 305 57 17 44 23 10 329 0 38 60 41 41 18 33 53 18 41 44 306 22 2 44 6 14 329 15 54 60 18 20 11 6 43 27 6 51 31 308 14 21 42 45 45 330 21 59 58 28 49 7 30 54 7 38 59 308 20 17 42 42 35 330 26 19 58 23 58 18 28 33 18 36 48 309 50 42 41 22 54 331 7 31 56 42 7 14 17 7 58 17 17 22 316 59 44 34 37 55 334 23 15 48 8 16 18 32 53 18 42 18 317 5 44 34 30 37 334 25 22 47 59 50 15 5 43 14 5 52 48 317 53 29 33 39 23 335 8 47 47 6 48 7 13 15 7 22 51 317 59 44 33 31 50 335 20 11 47 1 47 16 6 35 19 6 45 15 319 28 52 31 51 34 335 22 51 44 44 33 7 26 11 7 35 28 319 32 37 31 48 41 335 24 58 44 40 44 18 5 40 32 5 51 8 321 52 36 28 45 54 336 9 39 41 4 3 7 4 45 7 15 22 321 56 21 28 40 52 336 10 49 40 58 8 19 7 42 8 7 53 4 322 57 8 27 17 25 336 29 47 39 19 57 20 6 50 20 6 50 20 323 46 38 26 5 33 336 43 22 37 56 17 22 5 49 50 6 1 38 325 9 52 23 49 1 337 0 56 35 20 54 6 11 16 6 23 4 325 10 22 23 47 57 337 0 57 35 19 45 29 5 50 59 6 12 8 328 9 59 17 28 48 337 7 46 28 25 8 30 6 2 52 6 16 28 328 23 44 16 42 10 337 1 12 27 36 59 Feb. 4 5 57 53 6 12 8 329 17 41 13 11 38 336 26 10 24 2 24 7 6 30 23 6 44 54 329 33 51 11 6 15 335 50 20 22 0 9 8 6 16 20 6 30 54 329 39 35 10 26 47 335 41 16 21 21 25 11 6 14 49 6 29 28 329 41 27 9 2 46 335 10 5 20 2 34I have the honour to send you likewise the elements of the theory of this comet, which monsiers Pingré has deducted from my first observations, as follows.
The ascending node: ------- 3s 29d 20' 6"
Inclination: ----------------------- 53d 54' 19"
Place of perihelium: --------- 16d 11' 48"
Logarithm of perihelion distance: 9.751415.
Passage by the perihelium 12 February at 10h 29' mean time in the meridian of Paris. The motion retograde.
Remark: [hf] In modern notation, the elements of this comet, dubbed 1764 Messier, read:
Ascending Node: 104.852 deg, Inclination: 127.093 deg, Length of Perihelion: 122.685 deg, Perihelion Distance: 0.555216 AU, Perihelion Pasage: 1764 Feb 13.0710
Last Modification: March 17, 2000