| Ephemeris for 21P/Giacobini-Zinner
|
|     DATE     | Time  | Age of  | RIGHT ASCENS | DECLINATION | Rise  | Culm  | Set   | Approx|    Observable     | Constellation
| Year Mth Day |       | Moon    | hour min sec | deg min sec |       |       |       | Mag.  |                   |
|
| 2019  10  20 | 20:00 | 21 days |   10  38  15 | -11  36  21 | 04:07 | 09:27 | 14:47 | 21.45 |    Not observable | Sextans
| 2019  10  21 | 20:00 | 22 days |   10  39  00 | -11  42  17 | 04:04 | 09:24 | 14:44 | 21.45 |    Not observable | Sextans
| 2019  10  22 | 20:00 | 23 days |   10  39  44 | -11  48  13 | 04:02 | 09:21 | 14:40 | 21.46 |    Not observable | Sextans
| 2019  10  23 | 20:00 | 24 days |   10  40  29 | -11  54  09 | 03:59 | 09:18 | 14:37 | 21.47 |    Not observable | Hydra
| 2019  10  24 | 20:00 | 25 days |   10  41  12 | -12  00  04 | 03:56 | 09:15 | 14:33 | 21.47 |    Not observable | Hydra
| 2019  10  25 | 20:00 | 27 days |   10  41  55 | -12  05  59 | 03:53 | 09:11 | 14:29 | 21.48 |    Not observable | Hydra
| 2019  10  26 | 20:00 | 28 days |   10  42  38 | -12  11  53 | 03:50 | 09:08 | 14:26 | 21.49 |    Not observable | Hydra
| 2019  10  27 | 20:00 | 29 days |   10  43  20 | -12  17  47 | 03:47 | 09:05 | 14:22 | 21.49 |    Not observable | Hydra
| 2019  10  28 | 20:00 | 00 days |   10  44  01 | -12  23  40 | 03:45 | 09:02 | 14:19 | 21.50 |    Not observable | Hydra
| 2019  10  29 | 20:00 | 02 days |   10  44  42 | -12  29  32 | 03:42 | 08:58 | 14:15 | 21.51 |    Not observable | Hydra
| 2019  10  30 | 20:00 | 03 days |   10  45  22 | -12  35  24 | 03:39 | 08:55 | 14:11 | 21.51 | 06:00 until 06:04 | Hydra
| 2019  10  31 | 20:00 | 04 days |   10  46  02 | -12  41  14 | 03:36 | 08:52 | 14:08 | 21.52 | 05:58 until 06:06 | Hydra
| 2019  11  01 | 20:00 | 05 days |   10  46  41 | -12  47  04 | 03:33 | 08:49 | 14:04 | 21.52 | 05:55 until 06:07 | Hydra
| 2019  11  02 | 20:00 | 06 days |   10  47  20 | -12  52  52 | 03:30 | 08:45 | 14:00 | 21.53 | 05:52 until 06:08 | Hydra
| 2019  11  03 | 19:00 | 06 days |   10  47  58 | -12  58  40 | 02:27 | 07:42 | 12:57 | 21.54 | 04:50 until 05:09 | Hydra
| 2019  11  04 | 19:00 | 07 days |   10  48  35 | -13  04  26 | 02:24 | 07:39 | 12:53 | 21.54 | 04:47 until 05:10 | Hydra
| 2019  11  05 | 19:00 | 08 days |   10  49  12 | -13  10  11 | 02:21 | 07:35 | 12:49 | 21.55 | 04:44 until 05:11 | Hydra
| 2019  11  06 | 19:00 | 09 days |   10  49  48 | -13  15  55 | 02:18 | 07:32 | 12:46 | 21.55 | 04:42 until 05:12 | Hydra
| 2019  11  07 | 19:00 | 10 days |   10  50  23 | -13  21  37 | 02:15 | 07:29 | 12:42 | 21.56 | 04:39 until 05:13 | Hydra
| 2019  11  08 | 19:00 | 11 days |   10  50  58 | -13  27  18 | 02:12 | 07:25 | 12:38 | 21.56 | 04:36 until 05:14 | Hydra
| 2019  11  09 | 19:00 | 12 days |   10  51  32 | -13  32  57 | 02:09 | 07:22 | 12:34 | 21.57 | 04:33 until 05:16 | Crater
| 2019  11  10 | 19:00 | 13 days |   10  52  06 | -13  38  35 | 02:06 | 07:19 | 12:31 | 21.57 | 04:31 until 05:17 | Crater
| 2019  11  11 | 19:00 | 14 days |   10  52  39 | -13  44  11 | 02:03 | 07:15 | 12:27 | 21.58 | 04:28 until 05:18 | Crater
| 2019  11  12 | 19:00 | 15 days |   10  53  11 | -13  49  45 | 02:00 | 07:12 | 12:23 | 21.58 | 04:25 until 05:19 | Crater
| 2019  11  13 | 19:00 | 16 days |   10  53  43 | -13  55  18 | 01:57 | 07:08 | 12:19 | 21.59 | 04:22 until 05:20 | Crater
|
| 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/>