| 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.  |                   |
|
| 2020  05  27 | 20:00 | 05 days |   10  10  15 | -05  45  02 | 12:48 | 18:30 | 00:12 | 23.02 | 21:35 until 22:03 | Sextans
| 2020  05  28 | 20:00 | 06 days |   10  10  35 | -05  41  58 | 12:45 | 18:27 | 00:09 | 23.04 | 21:36 until 21:59 | Sextans
| 2020  05  29 | 20:00 | 07 days |   10  10  55 | -05  39  01 | 12:41 | 18:23 | 00:06 | 23.05 | 21:37 until 21:56 | Sextans
| 2020  05  30 | 20:00 | 08 days |   10  11  15 | -05  36  09 | 12:37 | 18:20 | 00:02 | 23.06 | 21:38 until 21:52 | Sextans
| 2020  05  31 | 20:00 | 09 days |   10  11  37 | -05  33  23 | 12:33 | 18:16 | 23:59 | 23.08 | 21:39 until 21:49 | Sextans
| 2020  06  01 | 20:00 | 10 days |   10  11  58 | -05  30  43 | 12:30 | 18:12 | 23:55 | 23.09 | 21:40 until 21:46 | Sextans
| 2020  06  02 | 20:00 | 11 days |   10  12  21 | -05  28  09 | 12:26 | 18:09 | 23:52 | 23.10 | 21:41 until 21:42 | Sextans
| 2020  06  03 | 20:00 | 12 days |   10  12  44 | -05  25  40 | 12:22 | 18:05 | 23:49 | 23.12 |    Not observable | Sextans
| 2020  06  04 | 20:00 | 13 days |   10  13  07 | -05  23  17 | 12:18 | 18:02 | 23:45 | 23.13 |    Not observable | Sextans
| 2020  06  05 | 20:00 | 14 days |   10  13  31 | -05  20  59 | 12:15 | 17:58 | 23:42 | 23.14 |    Not observable | Sextans
| 2020  06  06 | 20:00 | 16 days |   10  13  55 | -05  18  48 | 12:11 | 17:55 | 23:38 | 23.15 |    Not observable | Sextans
| 2020  06  07 | 20:00 | 17 days |   10  14  20 | -05  16  41 | 12:07 | 17:51 | 23:35 | 23.17 |    Not observable | Sextans
| 2020  06  08 | 20:00 | 18 days |   10  14  46 | -05  14  40 | 12:04 | 17:48 | 23:32 | 23.18 |    Not observable | Sextans
| 2020  06  09 | 20:00 | 19 days |   10  15  12 | -05  12  45 | 12:00 | 17:44 | 23:28 | 23.19 |    Not observable | Sextans
| 2020  06  10 | 20:00 | 20 days |   10  15  38 | -05  10  55 | 11:57 | 17:41 | 23:25 | 23.20 |    Not observable | Sextans
| 2020  06  11 | 20:00 | 20 days |   10  16  05 | -05  09  11 | 11:53 | 17:37 | 23:22 | 23.22 |    Not observable | Sextans
| 2020  06  12 | 20:00 | 21 days |   10  16  33 | -05  07  32 | 11:49 | 17:34 | 23:18 | 23.23 |    Not observable | Sextans
| 2020  06  13 | 20:00 | 22 days |   10  17  00 | -05  05  58 | 11:46 | 17:30 | 23:15 | 23.24 |    Not observable | Sextans
| 2020  06  14 | 20:00 | 23 days |   10  17  29 | -05  04  29 | 11:42 | 17:27 | 23:11 | 23.25 |    Not observable | Sextans
| 2020  06  15 | 20:00 | 24 days |   10  17  58 | -05  03  06 | 11:39 | 17:23 | 23:08 | 23.26 |    Not observable | Sextans
| 2020  06  16 | 20:00 | 25 days |   10  18  27 | -05  01  48 | 11:35 | 17:20 | 23:05 | 23.28 |    Not observable | Sextans
| 2020  06  17 | 20:00 | 26 days |   10  18  56 | -05  00  35 | 11:32 | 17:17 | 23:01 | 23.29 |    Not observable | Sextans
| 2020  06  18 | 20:00 | 27 days |   10  19  26 | -04  59  27 | 11:28 | 17:13 | 22:58 | 23.30 |    Not observable | Sextans
| 2020  06  19 | 20:00 | 28 days |   10  19  57 | -04  58  25 | 11:25 | 17:10 | 22:55 | 23.31 |    Not observable | Sextans
| 2020  06  20 | 20:00 | 29 days |   10  20  28 | -04  57  27 | 11:21 | 17:06 | 22:51 | 23.32 |    Not observable | Sextans
|
| 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/>