PSR Discoveries

Ephemeris for Comet Hale-Bopp - May 1997 from Maunakea


(This table is wider than standard 8.5-inch paper.)

MayUT *RA(1950)Dec(1950)RA (date)Dec (date)MagPhaseSolarAir-rDeltaTrackRates
97hrhh:mm:ssdd:mm:ashh:mm:ssdd:mm:asVAngleElongmass[AU][AU]RA Dec "/s
1 5:00c 04:38:30.25 +25:46:48.1 04:41:24.49 +25:52:12.7 -0.337 30.01 31.7 2.165 1.058 1.774 --- ---
1 6:00a 04 38 38.46 +25 45 15.4 04 41 32.67 +25 50 39.4 -0.335 29.98 31.7 4.011 1.058 1.774 -0.0341 -0.0259
2 5:00c 04 41 45.19 +25 10 7.5 04 44 38.80 +25 15 19.5 -0.281 29.38 31.3 2.184 1.067 1.791 --- ---
2 6:00a 04 41 53.18 +25 08 35.9 04 44 46.76 +25 13 47.4 -0.279 29.36 31.3 4.098 1.067 1.792 -0.0332 -0.0256
3 5:00c 04 44 54.75 +24 33 54.0 04 47 47.73 +24 38 53.7 -0.225 28.77 30.9 2.205 1.076 1.808 --- ---
3 6:00a 04 45 2.51 +24 32 23.6 04 47 55.46 +24 37 22.7 -0.223 28.74 30.9 4.195 1.076 1.809 -0.0322 -0.0253
4 5:00c 04 47 59.18 +23 58 7.8 04 50 51.53 +24 02 55.4 -0.169 28.16 30.5 2.229 1.085 1.825 --- ---
4 6:00a 04 48 6.74 +23 56 38.5 04 50 59.07 +24 01 25.6 -0.166 28.13 30.5 4.303 1.085 1.826 -0.0314 -0.0249
5 5:00c 04 50 58.77 +23 22 48.9 04 53 50.49 +23 27 24.7 -0.112 27.56 30.1 2.255 1.094 1.842 --- ---
5 6:00a 04 51 6.13 +23 21 20.8 04 53 57.83 +23 25 56.0 -0.110 27.53 30.1 4.422 1.095 1.843 -0.0306 -0.0246
6 5:00c 04 53 53.75 +22 47 57.3 04 56 44.85 +22 52 21.5 -0.055 26.97 29.7 2.283 1.104 1.860 --- ---
6 6:00a 04 54 0.92 +22 46 30.3 04 56 52.00 +22 50 54.1 -0.053 26.95 29.7 4.555 1.104 1.860 -0.0298 -0.0243
7 5:00c 04 56 44.36 +22 13 32.9 04 59 34.85 +22 17 45.8 0.001 26.39 29.4 2.314 1.113 1.877 --- ---
7 6:00a 04 56 51.36 +22 12 7.0 04 59 41.82 +22 16 19.5 0.004 26.37 29.3 4.702 1.114 1.877 -0.0291 -0.0240
8 5:00c 04 59 30.82 +21 39 35.4 05 02 20.69 +21 43 37.3 0.058 25.83 29.0 2.347 1.123 1.894 --- ---
8 6:00a 04 59 37.65 +21 38 10.6 05 02 27.50 +21 42 12.1 0.060 25.80 29.0 4.865 1.123 1.895 -0.0284 -0.0237
9 5:00c 05 02 13.33 +21 06 4.5 05 05 2.60 +21 09 55.6 0.115 25.27 28.6 2.383 1.133 1.911 --- ---
9 6:00a 05 02 20.00 +21 04 40.9 05 05 9.25 +21 08 31.5 0.117 25.25 28.6 5.046 1.133 1.912 -0.0277 -0.0233
10 5:00c 05 04 52.10 +20 33 0.0 05 07 40.77 +20 36 40.5 0.172 24.72 28.3 2.421 1.143 1.928 --- ---
10 6:00a 05 04 58.62 +20 31 37.5 05 07 47.26 +20 35 17.5 0.174 24.70 28.2 5.248 1.144 1.929 -0.0271 -0.0230
11 5:00c 05 07 27.31 +20 00 21.5 05 10 15.37 +20 03 51.5 0.228 24.19 27.9 2.462 1.153 1.945 --- ---
11 6:00a 05 07 33.68 +19 59 0.0 05 10 21.73 +20 02 29.6 0.231 24.17 27.9 5.473 1.154 1.945 -0.0265 -0.0227
12 5:00c 05 09 59.12 +19 28 8.4 05 12 46.60 +19 31 28.2 0.285 23.67 27.5 2.507 1.164 1.962 --- ---
12 6:00a 05 10 5.36 +19 26 48.0 05 12 52.81 +19 30 7.4 0.287 23.65 27.5 5.725 1.164 1.962 -0.0259 -0.0224
13 5:00c 05 12 27.72 +18 56 20.3 05 15 14.61 +18 59 30.1 0.341 23.16 27.2 2.554 1.174 1.978 --- ---
13 6:00a 05 12 33.83 +18 55 0.9 05 15 20.69 +18 58 10.4 0.344 23.14 27.2 6.008 1.175 1.979 -0.0254 -0.0221
14 5:00c 05 14 53.24 +18 24 56.7 05 17 39.55 +18 27 56.7 0.398 22.66 26.9 2.605 1.185 1.995 --- ---
14 6:00a 05 14 59.22 +18 23 38.4 05 17 45.51 +18 26 38.0 0.400 22.64 26.8 6.327 1.185 1.996 -0.0248 -0.0219
15 5:00c 05 17 15.84 +17 53 57.1 05 20 1.58 +17 56 47.5 0.454 22.18 26.5 2.660 1.195 2.012 --- ---
15 6:00a 05 17 21.71 +17 52 39.8 05 20 7.42 +17 55 29.8 0.456 22.16 26.5 6.689 1.196 2.012 -0.0243 -0.0216
16 6:00a 05 19 41.41 +17 22 4.6 05 22 26.56 +17 24 45.1 0.512 21.69 26.2 7.101 1.207 2.029 --- ---
17 6:00a 05 21 58.47 +16 51 52.3 05 24 43.06 +16 54 23.5 0.567 21.23 25.9 7.573 1.218 2.045 --- ---
18 6:00a 05 24 13.01 +16 22 2.2 05 26 57.04 +16 24 24.2 0.623 20.79 25.5 8.117 1.229 2.061 --- ---
19 6:00a 05 26 25.14 +15 52 33.8 05 29 8.62 +15 54 46.9 0.678 20.36 25.2 8.746 1.240 2.078 --- ---
20 6:00a 05 28 34.97 +15 23 26.6 05 31 17.91 +15 25 30.7 0.733 19.94 24.9 9.475 1.251 2.094 --- ---
* KEY: UT = time in Greenwich England (=HST + 10 hours),
c = UT time is during local civil twilight (sun 0-6 degrees below horizon),
n = UT time is during local nautical twilight (sun 6-12 degrees below horizon),
a = UT time is during local astronomical twilight (sun 12-18 degrees below horizon).

Osculating elements for Semi-major axis = -0.9141047
Ascending node = 281.77208
Eccentricity = 0.9950989
Perihelion = 130.59690
Epoch: 13 Mar 1997
Inclination = 89.42742
Mean anomaly = -0.00740
Source: MPC28557
Topocentric ephemeris for Maunakea Observatory Assumed sidereal tracking rate: 0.0000

Two-body ephemeris computations by David J. Tholen, Institute for Astronomy, Univ. of Hawaii (808-956-6930)


Return to "Ephemeris Generators for Comet Hale-Bopp."
Go to "1997 Apparition of Comet Hale-Bopp" in PSR Discoveries.