Development of this web site was made possible by several grants each from NASA and the NSF.
SkyWatch: December 2025
|
Dates and times are Universal Time |
Location Information for Rise/Set times
Enter Longitude and Latitude in degrees (e.g., 39.1003).
Western/Southern Hemisphere = negative
Enter UTOffset in hours (e.g., 9.5)
Examples: Colo Spgs, CO: –105 +39 -7.0; Adelaide, Australia = +138 –34 +9.5)
Enter Longitude and Latitude in degrees (e.g., 39.1003).
Western/Southern Hemisphere = negative
Enter UTOffset in hours (e.g., 9.5)
Examples: Colo Spgs, CO: –105 +39 -7.0; Adelaide, Australia = +138 –34 +9.5)
Sun Information
Currently (Wed, 2025 Dec 17 07:36 UT)
RA 17 39 00.7Dec -23 20 54.0
X -0.081467
Y -0.899846
Z -0.390070
R 0.984131
Local time for sunrise/sunset/twilight
Nautical Twilight (NT): Sun 12º below horizon
Astronomical Twilight (AT): Sun 18º below horizon
| Local Date | AT Start | NT Start | CT Start | Sun Rise | Sun Set | CT End | NT End | AT End |
| 2025 Dec 16 | 05:36 | 06:08 | 06:42 | 07:12 | 16:38 | 17:08 | 17:41 | 18:14 |
| 2025 Dec 17 | 05:36 | 06:09 | 06:42 | 07:12 | 16:38 | 17:08 | 17:42 | 18:14 |
| 2025 Dec 18 | 05:37 | 06:09 | 06:43 | 07:13 | 16:39 | 17:09 | 17:42 | 18:15 |
Moon Information
Currently (Wed, 2025 Dec 17 07:36 UT)
RA 15 27 46.4Selected Positions for December 2025
Dec -23 46 59.4
Phase -0.068 (+ = waxing; - = waning)
Parallax 0.899 degrees
Diameter 29.41 arcminutes
Elong (RA) 33WLocal time for moon rise/transit/set (for UT date)
UT Date Rise Transit Set 2025 Dec 16 04:16 09:13 13:48 2025 Dec 17 05:17 10:00 14:22 2025 Dec 18 06:18 10:49 15:05 Phases for 2025
New First Full Last
Dec 01 2024 06:22 Dec 08 2024 15:28 Dec 15 2024 09:03 Dec 22 2024 22:19
---------------------------------------------------------------------------------------
Dec 30 2024 22:28 Jan 06 2025 23:57 Jan 13 2025 22:27 Jan 21 2025 20:31
Jan 29 2025 12:36 Feb 05 2025 08:03 Feb 12 2025 13:54 Feb 20 2025 17:33
Feb 28 2025 00:45 Mar 06 2025 16:32 Mar 14 2025 06:55 Mar 22 2025 11:30
Mar 29 2025 10:58 Apr 05 2025 02:15 Apr 13 2025 00:22 Apr 21 2025 01:36
Apr 27 2025 19:31 May 04 2025 13:53 May 12 2025 16:56 May 20 2025 11:59
May 27 2025 03:02 Jun 03 2025 03:42 Jun 11 2025 07:44 Jun 18 2025 19:20
Jun 25 2025 10:32 Jul 02 2025 19:31 Jul 10 2025 20:37 Jul 18 2025 00:38
Jul 24 2025 19:11 Aug 01 2025 12:42 Aug 09 2025 07:55 Aug 16 2025 05:13
Aug 23 2025 06:07 Aug 31 2025 06:26 Sep 07 2025 18:09 Sep 14 2025 10:34
Sep 21 2025 19:54 Sep 29 2025 23:54 Oct 07 2025 03:48 Oct 13 2025 18:13
Oct 21 2025 12:26 Oct 29 2025 16:22 Nov 05 2025 13:20 Nov 12 2025 05:29
Nov 20 2025 06:48 Nov 28 2025 07:00 Dec 04 2025 23:15 Dec 11 2025 20:52
Dec 20 2025 01:44 Dec 27 2025 19:11 Jan 03 2026 10:04 Jan 10 2026 15:49
Jan 18 2026 19:53 Jan 26 2026 04:48 Feb 01 2026 22:10 Feb 09 2026 12:44Planet Information
Currently (Wed, 2025 Dec 17 07:36 UT)
Local Rise/Transit/Set times are given at the end of each line
Sun 17 39 00.7 -23 20 54.0
Opposition 05 39 00.7 +23 20 54.0 180E 16:34 23:53 07:12
Mercury 16 20 00.7 -20 10 45.6 19W 05:47 10:35 15:21
Venus 17 17 45.6 -23 00 26.0 5W 06:56 11:33 16:08
Mars 18 04 51.2 -24 13 19.6 6E 07:46 12:17 16:48
Jupiter 07 38 28.1 +21 42 47.7 152W 18:41 01:52 09:03
Saturn 23 45 45.6 -04 03 29.9 90E 12:02 17:49 23:29
Uranus 03 43 22.7 +19 31 36.2 153E 14:55 21:58 05:00
Neptune 23 58 33.0 -01 37 11.8 94E 12:07 18:02 23:49
Pluto 20 20 25.7 -23 23 30.0 37E 09:47 14:24 18:55
Dec 01 2025 Dec 16 2025 Dec 31 2025
-------------------------------------------------------------------------------------------------------------
Sun 16 27 49.9 -21 44 48.4 17 33 28.5 -23 17 45.4 19 49 50.1 -21 02 21.7
Opposition 04 27 49.9 +21 44 48.4 180E 05 33 28.5 +23 17 45.4 180E 07 49 50.1 +21 02 21.7 180E
Mercury 15 15 03.0 -15 21 31.7 18W 16 12 57.3 -19 43 28.7 19W 19 35 55.7 -23 28 15.5 4W
Venus 15 51 16.3 -19 25 35.6 9W 17 10 57.9 -22 50 00.2 5W 20 00 03.8 -21 36 08.5 2E
Mars 17 11 39.6 -23 38 12.1 10E 18 00 42.8 -24 13 02.8 6E 19 43 51.0 -22 17 00.5 2W
Jupiter 07 44 22.8 +21 25 58.0 135W 07 39 01.6 +21 41 17.2 151W 07 22 22.0 +22 21 47.7 173E
Saturn 23 44 40.7 -04 14 19.3 106E 23 45 37.0 -04 04 43.3 91E 23 51 56.7 -03 17 04.7 61E
Uranus 03 45 59.7 +19 39 47.0 170E 03 43 34.0 +19 32 11.5 154E 03 40 03.4 +19 21 13.4 122E
Neptune 23 58 36.6 -01 37 29.8 110E 23 58 32.1 -01 37 21.0 95E 23 59 52.5 -01 27 21.8 64E
Pluto 20 18 45.2 -23 28 48.2 53E 20 20 17.1 -23 23 56.2 38E 20 24 12.0 -23 12 20.6 8E