| Ephemeris for 26P/Grigg-Skjellerup
|
|     DATE     | Time  | Age of  | RIGHT ASCENS | DECLINATION | Rise  | Culm  | Set   | Approx|    Observable     | Constellation
| Year Mth Day |       | Moon    | hour min sec | deg min sec |       |       |       | Mag.  |                   |
|
| 2021  07  29 | 20:00 | 20 days |   03  09  02 | +15  12  25 | 00:23 | 07:24 | 14:24 | 23.80 | 02:28 until 04:11 | Aries
| 2021  07  30 | 20:00 | 21 days |   03  09  25 | +15  12  15 | 00:19 | 07:20 | 14:21 | 23.79 | 02:25 until 04:13 | Aries
| 2021  07  31 | 20:00 | 22 days |   03  09  47 | +15  12  02 | 00:16 | 07:17 | 14:17 | 23.78 | 02:21 until 04:14 | Aries
| 2021  08  01 | 20:00 | 23 days |   03  10  09 | +15  11  45 | 00:12 | 07:13 | 14:14 | 23.78 | 02:17 until 04:15 | Aries
| 2021  08  02 | 20:00 | 24 days |   03  10  30 | +15  11  25 | 00:09 | 07:09 | 14:10 | 23.77 | 02:14 until 04:17 | Aries
| 2021  08  03 | 20:00 | 25 days |   03  10  51 | +15  11  01 | 00:05 | 07:06 | 14:06 | 23.76 | 02:10 until 04:18 | Aries
| 2021  08  04 | 20:00 | 26 days |   03  11  10 | +15  10  34 | 00:02 | 07:02 | 14:03 | 23.75 | 02:07 until 04:19 | Aries
| 2021  08  05 | 20:00 | 27 days |   03  11  29 | +15  10  03 | 23:58 | 06:59 | 13:59 | 23.75 | 02:03 until 04:21 | Aries
| 2021  08  06 | 20:00 | 27 days |   03  11  48 | +15  09  29 | 23:54 | 06:55 | 13:55 | 23.74 | 02:00 until 04:22 | Aries
| 2021  08  07 | 20:00 | 28 days |   03  12  06 | +15  08  51 | 23:51 | 06:51 | 13:52 | 23.73 | 01:56 until 04:24 | Aries
| 2021  08  08 | 20:00 | 00 days |   03  12  23 | +15  08  09 | 23:47 | 06:48 | 13:48 | 23.72 | 01:52 until 04:25 | Aries
| 2021  08  09 | 20:00 | 01 days |   03  12  39 | +15  07  24 | 23:44 | 06:44 | 13:44 | 23.71 | 01:49 until 04:26 | Aries
| 2021  08  10 | 20:00 | 02 days |   03  12  55 | +15  06  35 | 23:40 | 06:40 | 13:41 | 23.70 | 01:45 until 04:28 | Aries
| 2021  08  11 | 20:00 | 03 days |   03  13  10 | +15  05  43 | 23:36 | 06:37 | 13:37 | 23.70 | 01:41 until 04:29 | Aries
| 2021  08  12 | 20:00 | 04 days |   03  13  24 | +15  04  47 | 23:33 | 06:33 | 13:33 | 23.69 | 01:38 until 04:30 | Aries
| 2021  08  13 | 20:00 | 05 days |   03  13  38 | +15  03  47 | 23:29 | 06:29 | 13:29 | 23.68 | 01:34 until 04:32 | Aries
| 2021  08  14 | 20:00 | 06 days |   03  13  50 | +15  02  43 | 23:25 | 06:26 | 13:26 | 23.67 | 01:31 until 04:33 | Aries
| 2021  08  15 | 20:00 | 07 days |   03  14  02 | +15  01  36 | 23:22 | 06:22 | 13:22 | 23.66 | 01:27 until 04:35 | Aries
| 2021  08  16 | 20:00 | 08 days |   03  14  14 | +15  00  24 | 23:18 | 06:18 | 13:18 | 23.65 | 01:23 until 04:36 | Aries
| 2021  08  17 | 20:00 | 09 days |   03  14  24 | +14  59  10 | 23:14 | 06:14 | 13:14 | 23.65 | 01:19 until 04:37 | Aries
| 2021  08  18 | 20:00 | 11 days |   03  14  34 | +14  57  51 | 23:11 | 06:11 | 13:10 | 23.64 | 01:16 until 04:39 | Aries
| 2021  08  19 | 20:00 | 12 days |   03  14  43 | +14  56  28 | 23:07 | 06:07 | 13:06 | 23.63 | 01:12 until 04:40 | Aries
| 2021  08  20 | 20:00 | 13 days |   03  14  51 | +14  55  02 | 23:03 | 06:03 | 13:02 | 23.62 | 01:08 until 04:41 | Aries
| 2021  08  21 | 20:00 | 14 days |   03  14  59 | +14  53  32 | 23:00 | 05:59 | 12:59 | 23.61 | 01:05 until 04:43 | Aries
| 2021  08  22 | 20:00 | 15 days |   03  15  06 | +14  51  58 | 22:56 | 05:55 | 12:55 | 23.60 | 01:01 until 04:44 | Aries
|
| All times computed for Cambridge (latitude 42.38; longitude -71.11)
|      and expressed in Cambridge time.
|
| Ephemeris computed by Dominic Ford.
| <https://in-the-sky.org/>