| Astronomical Times for Chamberlain Observatory (39.002455, -90.163180) Starting 15 Sep 2026, for the next 5 days | |||||||
| Date | Morning | Sunrise | Sunset | Evening | Moonrise | Moonset | Moon Phase |
| Twilight | Twilight | ||||||
| 15 Sep 2026 | 05:09 | 06:40 | 19:10 | 20:39 | 11:34 | 21:13 |  |
| 16 Sep 2026 | 05:10 | 06:41 | 19:08 | 20:37 | 12:37 | 21:50 | |
| 17 Sep 2026 | 05:11 | 06:42 | 19:07 | 20:36 | 13:38 | 22:33 | |
| 18 Sep 2026 | 05:12 | 06:43 | 19:05 | 20:34 | 14:32 | 23:25 |  |
| 19 Sep 2026 | 05:13 | 06:44 | 19:04 | 20:33 | 15:20 | None | |
| Planetary Data for today | ||||||||||
 |  |  |  |  |  |  |  | |||
| Mercury | Venus | Mars | Jupiter | Saturn | Uranus | Neptune | Pluto | |||
| Rises | 08:00 | 10:16 | 01:41 | 03:43 | 20:07 | 22:25 | 19:38 | 17:09 | ||
| Meridian | 13:51 | 15:17 | 08:59 | 10:38 | 02:13 | 05:37 | 01:37 | 21:49 | ||
| Sets | 19:42 | 20:20 | 16:16 | 17:32 | 08:20 | 12:48 | 07:35 | 02:25 | ||
| Constellation | Virgo | Virgo | Gemini | Cancer | Cetus | Taurus | Pisces | Capricornus | ||
| Visible ISS Passes | ||||||||||
 | ||||||||||
| Date | Brightness | Start | Highest point | End | ||||||
| (mag) | Time | Alt. | Az. | Time | Alt. | Az. | Time | Alt. | Az. | |
| 14 Sep | -0.9 | 20:23:55 | 10° | NW | 20:25:44 | 14° | NNW | 20:27:33 | 10° | NNE |
| 15 Sep | -1.2 | 19:35:33 | 10° | WNW | 19:37:54 | 17° | NNW | 19:40:15 | 10° | NNE |
| 16 Sep | -0.8 | 20:27:27 | 10° | NNW | 20:27:52 | 10° | N | 20:28:17 | 10° | N |
| 17 Sep | -0.9 | 19:38:42 | 10° | NNW | 19:39:55 | 11° | NNW | 19:41:08 | 10° | N |
| 17 Sep | -0.7 | 21:17:03 | 10° | N | 21:17:29 | 11° | N | 21:17:29 | 11° | N |