| Ephemeris for 123P/West-Hartley | | DATE | Time | Age of | RIGHT ASCENS | DECLINATION | Rise | Culm | Set | Approx| Observable | Constellation | Year Mth Day | | Moon | hour min sec | deg min sec | | | | Mag. | | | | 2024 04 24 | 20:00 | 15 days | 00 40 30 | -05 40 19 | 05:30 | 11:12 | 16:54 | 22.25 | Not observable | Cetus | 2024 04 25 | 20:00 | 16 days | 00 41 16 | -05 35 23 | 05:26 | 11:09 | 16:51 | 22.24 | Not observable | Cetus | 2024 04 26 | 20:00 | 17 days | 00 42 02 | -05 30 29 | 05:23 | 11:06 | 16:48 | 22.24 | Not observable | Cetus | 2024 04 27 | 20:00 | 18 days | 00 42 47 | -05 25 37 | 05:19 | 11:02 | 16:46 | 22.23 | Not observable | Cetus | 2024 04 28 | 20:00 | 19 days | 00 43 32 | -05 20 47 | 05:16 | 10:59 | 16:43 | 22.22 | Not observable | Cetus | 2024 04 29 | 20:00 | 20 days | 00 44 18 | -05 15 59 | 05:12 | 10:56 | 16:40 | 22.22 | Not observable | Cetus | 2024 04 30 | 20:00 | 21 days | 00 45 03 | -05 11 14 | 05:09 | 10:53 | 16:37 | 22.21 | Not observable | Cetus | 2024 05 01 | 20:00 | 22 days | 00 45 48 | -05 06 31 | 05:05 | 10:50 | 16:34 | 22.20 | Not observable | Cetus | 2024 05 02 | 20:00 | 23 days | 00 46 32 | -05 01 50 | 05:02 | 10:46 | 16:31 | 22.20 | Not observable | Cetus | 2024 05 03 | 20:00 | 24 days | 00 47 17 | -04 57 11 | 04:58 | 10:43 | 16:28 | 22.19 | Not observable | Cetus | 2024 05 04 | 20:00 | 26 days | 00 48 01 | -04 52 35 | 04:55 | 10:40 | 16:25 | 22.18 | Not observable | Cetus | 2024 05 05 | 20:00 | 27 days | 00 48 46 | -04 48 01 | 04:51 | 10:37 | 16:22 | 22.17 | Not observable | Cetus | 2024 05 06 | 20:00 | 28 days | 00 49 30 | -04 43 29 | 04:48 | 10:34 | 16:19 | 22.17 | Not observable | Cetus | 2024 05 07 | 20:00 | 29 days | 00 50 14 | -04 39 00 | 04:44 | 10:30 | 16:17 | 22.16 | Not observable | Cetus | 2024 05 08 | 20:00 | 00 days | 00 50 57 | -04 34 33 | 04:41 | 10:27 | 16:14 | 22.15 | Not observable | Cetus | 2024 05 09 | 20:00 | 02 days | 00 51 41 | -04 30 09 | 04:37 | 10:24 | 16:11 | 22.14 | Not observable | Cetus | 2024 05 10 | 20:00 | 03 days | 00 52 24 | -04 25 47 | 04:34 | 10:21 | 16:08 | 22.14 | Not observable | Cetus | 2024 05 11 | 20:00 | 04 days | 00 53 07 | -04 21 28 | 04:30 | 10:18 | 16:05 | 22.13 | Not observable | Cetus | 2024 05 12 | 20:00 | 05 days | 00 53 50 | -04 17 11 | 04:27 | 10:14 | 16:02 | 22.12 | Not observable | Cetus | 2024 05 13 | 20:00 | 06 days | 00 54 33 | -04 12 57 | 04:23 | 10:11 | 15:59 | 22.11 | Not observable | Cetus | 2024 05 14 | 20:00 | 06 days | 00 55 15 | -04 08 46 | 04:20 | 10:08 | 15:56 | 22.10 | Not observable | Cetus | 2024 05 15 | 20:00 | 07 days | 00 55 58 | -04 04 37 | 04:17 | 10:05 | 15:53 | 22.10 | Not observable | Cetus | 2024 05 16 | 20:00 | 08 days | 00 56 40 | -04 00 31 | 04:13 | 10:01 | 15:50 | 22.09 | Not observable | Cetus | 2024 05 17 | 20:00 | 09 days | 00 57 21 | -03 56 28 | 04:10 | 09:58 | 15:47 | 22.08 | Not observable | Cetus | 2024 05 18 | 20:00 | 10 days | 00 58 03 | -03 52 28 | 04:06 | 09:55 | 15:44 | 22.07 | Not observable | Cetus | | All times computed for Cambridge (latitude 42.38; longitude -71.11) | and expressed in Cambridge time. | | Ephemeris computed by Dominic Ford. |