PSR Discoveries

Ephemeris for Comet Hale-Bopp - May 1997 from Mauna Kea

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

May UT ^* RA(1950) Dec(1950) RA (date) Dec (date) Mag Phase Solar Air- r Delta Track Rates
97 hr hh:mm:ss dd:mm:as hh:mm:ss dd:mm:as V Angle Elong mass [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 Mauna Kea 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.

May	UT ^*	RA(1950)	Dec(1950)	RA (date)	Dec (date)	Mag	Phase	Solar	Air-	r	Delta	Track	Rates
97	hr	hh:mm:ss	dd:mm:as	hh:mm:ss	dd:mm:as	V	Angle	Elong	mass	[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	---	---