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THE ASTRONOMER Electronic Circular No 855 1994 July 9 12.54UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074
INTERNET: GMH at AST.STAR.RL.AC.UK or GMH at GXVG.AST.CAM.AC.UK
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COMET McNAUGHT-HARTLEY (1994n)
R. H. McNaught reports his discovery of a comet on a 110-min
exposure on July 6 by M. Hartley with the 1.2-m U.K. Schmidt
telescope at Siding Spring, and he provides the following
measurements, also from a plate obtained the night before in very
bad seeing. The discovery plate shows a very strong condensation,
a 15" coma and a tail in p.a. 270 deg.
1994 UT R.A. (2000) Decl. m1
July 5.67164 21 36 25.66 -41 43 55.6
6.60581 21 36 19.76 -41 50 17.0 16
6.68220 21 36 19.03 -41 50 47.9
COMET NAKAMURA-NISHIMURA-MACHHOLZ (1994m)
Parabolic orbital elements from 11 observations July 6-8:
T = 1994 July 10.627 TT Peri. = 119.368
Node = 161.397 2000.0
q = 1.18077 AU Incl. = 94.963
IAUC 6015
Ephemeris by G.Hurst using EPH.EXE by N.James:
m = 8.0 + 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.
1994 July
7.00 3 54.03 +70 11.6 1.422 1.182 55.0 9.5 32 263
9.00 3 48.89 +70 8.4 1.392 1.181 56.2 9.4 34 263
11.00 3 43.39 +70 5.0 1.361 1.181 57.4 9.4 37 263
13.00 3 37.50 +70 1.2 1.329 1.181 58.7 9.3 39 262
15.00 3 31.18 +69 56.7 1.295 1.183 60.1 9.3 42 262
17.00 3 24.40 +69 51.4 1.261 1.185 61.6 9.2 46 261
19.00 3 17.10 +69 44.9 1.226 1.188 63.2 9.2 50 260
21.00 3 9.25 +69 37.1 1.190 1.192 64.9 9.1 54 259
23.00 3 0.80 +69 27.4 1.153 1.197 66.6 9.1 59 257
25.00 2 51.70 +69 15.5 1.116 1.202 68.5 9.0 65 255
27.00 2 41.91 +69 0.8 1.077 1.209 70.5 9.0 71 253
29.00 2 31.39 +68 42.5 1.039 1.216 72.6 8.9 78 251
31.00 2 20.10 +68 20.0 0.999 1.224 74.8 8.9 87 249
1994 Aug
2.00 2 8.02 +67 52.0 0.960 1.232 77.2 8.8 96 246
4.00 1 55.17 +67 17.5 0.920 1.242 79.7 8.8 107 244
6.00 1 41.55 +66 34.8 0.880 1.252 82.4 8.7 120 241
8.00 1 27.24 +65 42.2 0.840 1.262 85.3 8.6 134 237
10.00 1 12.31 +64 37.7 0.800 1.274 88.4 8.6 151 234
12.00 0 56.90 +63 18.8 0.761 1.286 91.8 8.5 170 231
14.00 0 41.17 +61 42.9 0.722 1.298 95.4 8.4 192 227
16.00 0 25.30 +59 47.1 0.685 1.311 99.3 8.4 218 224
18.00 0 9.49 +57 28.3 0.650 1.325 103.6 8.3 246 220
20.00 23 53.94 +54 43.2 0.616 1.339 108.3 8.2 278 217
22.00 23 38.82 +51 29.0 0.585 1.354 113.3 8.2 314 214
24.00 23 24.29 +47 43.2 0.556 1.369 118.8 8.1 351 211
26.00 23 10.49 +43 24.6 0.532 1.385 124.8 8.0 388 208
28.00 22 57.50 +38 33.8 0.512 1.401 131.0 8.0 424 206
30.00 22 45.38 +33 14.0 0.498 1.417 137.5 8.0 454 204
Guy M Hurst
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Date: Sun, 10 Jul 1994 09:31:29 +0100 (BST)