| Astronomical Times for Chamberlain Observatory (39.002455, -90.163180) Starting 25 Aug 2026, for the next 5 days | |||||||
| Date | Morning | Sunrise | Sunset | Evening | Moonrise | Moonset | Moon Phase |
| Twilight | Twilight | ||||||
| 25 Aug 2026 | 04:51 | 06:22 | 19:43 | 21:12 | 18:36 | 03:36 |  |
| 26 Aug 2026 | 04:52 | 06:23 | 19:41 | 21:10 | 19:04 | 04:40 | |
| 27 Aug 2026 | 04:52 | 06:23 | 19:40 | 21:09 | 19:29 | 05:45 | |
| 28 Aug 2026 | 04:53 | 06:24 | 19:38 | 21:07 | 19:52 | 06:49 |  |
| 29 Aug 2026 | 04:54 | 06:25 | 19:37 | 21:06 | 20:14 | 07:54 | |
| Planetary Data for today | ||||||||||
 |  |  |  |  |  |  |  | |||
| Mercury | Venus | Mars | Jupiter | Saturn | Uranus | Neptune | Pluto | |||
| Rises | 06:17 | 10:16 | 02:01 | 04:41 | 21:28 | 23:44 | 20:58 | 18:29 | ||
| Meridian | 13:00 | 15:44 | 09:23 | 11:40 | 03:36 | 06:55 | 02:57 | 23:09 | ||
| Sets | 19:40 | 21:14 | 16:45 | 18:39 | 09:45 | 14:06 | 08:56 | 03:46 | ||
| Constellation | Leo | Virgo | Gemini | Cancer | Pisces | Taurus | Pisces | Capricornus | ||
| Visible ISS Passes | ||||||||||
 | ||||||||||
| Date | Brightness | Start | Highest point | End | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | |
| 25 Aug | -0.5 | 03:25:00 | 14° | NNE | 03:25:00 | 14° | NNE | 03:25:33 | 10° | NE |
| 25 Aug | -1.0 | 04:58:53 | 10° | NNW | 05:00:02 | 11° | NNW | 05:01:11 | 10° | N |
| 26 Aug | -1.1 | 04:11:43 | 14° | NNW | 04:11:43 | 14° | NNW | 04:13:31 | 10° | NNE |
| 27 Aug | -0.3 | 03:25:30 | 11° | NNE | 03:25:30 | 11° | NNE | 03:25:46 | 10° | NNE |
| 28 Aug | -0.7 | 04:12:39 | 10° | NNW | 04:12:54 | 10° | N | 04:13:10 | 10° | N |
| 28 Aug | -0.9 | 05:49:26 | 10° | NNW | 05:50:54 | 12° | NNE | 05:52:21 | 10° | NE |
| 29 Aug | -0.7 | 05:01:47 | 10° | N | 05:02:31 | 10° | N | 05:03:13 | 10° | NNE |