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 10 18:45 UT)
RA 17 10 18.3Dec -22 56 39.7
X -0.194559
Y -0.885724
Z -0.383944
R 0.984770
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 09 | 05:31 | 06:04 | 06:37 | 07:07 | 16:36 | 17:06 | 17:39 | 18:12 |
| 2025 Dec 10 | 05:32 | 06:04 | 06:38 | 07:08 | 16:36 | 17:06 | 17:40 | 18:12 |
| 2025 Dec 11 | 05:33 | 06:05 | 06:39 | 07:08 | 16:37 | 17:06 | 17:40 | 18:12 |
Moon Information
Currently (Wed, 2025 Dec 10 18:45 UT)
RA 10 33 05.4Selected Positions for December 2025
Dec +09 46 04.5
Phase -0.607 (+ = waxing; - = waning)
Parallax 0.948 degrees
Diameter 31.01 arcminutes
Elong (RA) 99WLocal time for moon rise/transit/set (for UT date)
UT Date Rise Transit Set 2025 Dec 09 20:54 04:12 11:08 2025 Dec 10 22:05 05:00 11:32 2025 Dec 11 23:11 05:44 11:53 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 10 18:45 UT)
Local Rise/Transit/Set times are given at the end of each line
Sun 17 10 18.3 -22 56 39.7
Opposition 05 10 18.3 +22 56 39.7 180E 16:33 23:50 07:07
Mercury 15 45 43.7 -17 45 59.7 20W 05:28 10:25 15:21
Venus 16 42 39.0 -21 54 35.9 6W 06:41 11:22 16:02
Mars 17 43 24.1 -24 07 23.4 8E 07:50 12:22 16:51
Jupiter 07 41 11.8 +21 35 17.4 145W 19:12 02:22 09:33
Saturn 23 45 07.3 -04 09 09.7 96E 12:29 18:16 23:55
Uranus 03 44 22.9 +19 34 45.0 160E 15:24 22:26 05:29
Neptune 23 58 30.5 -01 37 45.3 100E 12:34 18:29 00:16
Pluto 20 19 42.8 -23 25 43.6 43E 10:13 14:51 19:21
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