2025Calendar of Astronomical Events
2025Phases of the Moon
Alaska Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Alaska Standard Time(Greenwich Mean Time - 9 hours).If Daylight Saving Time is in effect, add one hour to the times listed.
| 2025 Phases of the Moon | |||
| Alaska Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | Jan 6 14:56 | Jan 13 13:27 | Jan 21 11:31 |
| Jan 29 03:36 | Feb 4 23:02 | Feb 12 04:53 | Feb 20 08:33 |
| Feb 27 15:45 | Mar 6 07:32 | Mar 13 21:55 t | Mar 22 02:30 |
| Mar 29 01:58 P | Apr 4 17:15 | Apr 12 15:22 | Apr 20 16:36 |
| Apr 27 10:31 | May 4 04:52 | May 12 07:56 | May 20 02:59 |
| May 26 18:02 | Jun 2 18:41 | Jun 10 22:44 | Jun 18 10:19 |
| Jun 25 01:31 | Jul 2 10:30 | Jul 10 11:37 | Jul 17 15:38 |
| Jul 24 10:11 | Aug 1 03:41 | Aug 8 22:55 | Aug 15 20:12 |
| Aug 22 21:06 | Aug 30 21:25 | Sep 7 09:09 t | Sep 14 01:33 |
| Sep 21 10:54 P | Sep 29 14:54 | Oct 6 18:47 | Oct 13 09:13 |
| Oct 21 03:25 | Oct 29 07:21 | Nov 5 04:19 | Nov 11 20:28 |
| Nov 19 21:47 | Nov 27 21:59 | Dec 4 14:14 | Dec 11 11:52 |
| Dec 19 16:43 | Dec 27 10:10 | - | - |
An eclipse of the Sun can only occur at New Moon (see: Solar Eclipses for Beginners), while an eclipse of the Moon can only occur at Full Moon (see: Lunar Eclipses for Beginners). In any calendar year there are a minimum of two solar and two lunar eclipses.
If an eclipse of the Sun or Moon takes place on a given date, it is noted by a character next to the date in the table above. Solar eclipses are indicated as: T=Total, A=Annular, H=Hybrid and P=Partial.Lunar eclipses are indicated as: t=Total, p=Partial, and n=Penumbral.
Phases of the Moon Photo Gallery is an image collection showing the Moon's phases over a complete synodic month.
2025Calendar of Astronomical Events
Alaska Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Alaska Standard Time(Greenwich Mean Time - 9 hours).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.
| 2025Calendar of Astronomical Events | ||||||||
| Alaska Standard Time | ||||||||
| January - June | July - December | |||||||
Date AKST Even (h:m)Jan 03 06:24 Venus 1.4°N of Moon 03 06 Quadrantid Meteor Shower 04 05 Earth at Perihelion: 0.98333 AU 04 08:18 Saturn 0.7°S of Moon: Occn. 05 10:46 Moon at Ascending Node 06 14:56 FIRST QUARTER MOON 07 14:34 Moon at Perigee: 370173 km 09 16:01 Pleiades 0.3°S of Moon 09 19 Venus at Greatest Elong: 47.2°E 10 14:13 Jupiter 5.4°S of Moon 13 12:45 Pollux 2.1°N of Moon 13 13:27 FULL MOON 13 18:42 Mars 0.2°S of Moon: Occn. 14 12:03 Beehive 2.6°S of Moon 15 16 Mars at Opposition 16 05:57 Regulus 2.2°S of Moon 18 07 Venus 2.2°N of Saturn 18 16:48 Moon at Descending Node 19 05 Mercury at Aphelion 20 18:53 Spica 0.1°N of Moon 20 19:55 Moon at Apogee: 404299 km 21 11:31 LAST QUARTER MOON 23 08:07 Mars 2.3°S of Pollux 24 14:34 Antares 0.3°N of Moon 29 03:36 NEW MOON 31 11:27 Jupiter 5.1°N of Aldebaran 31 19:46 Saturn 1.1°S of Moon: Occn.Feb 01 11:27 Venus 2.3°N of Moon 01 13:06 Moon at Ascending Node 01 17:43 Moon at Perigee: 367457 km 04 23:02 FIRST QUARTER MOON 05 21:43 Pleiades 0.5°S of Moon 06 18:35 Jupiter 5.5°S of Moon 09 03 Mercury at Superior Conjunction 09 10:36 Mars 0.8°S of Moon: Occn. 09 20:19 Pollux 2.1°N of Moon 10 20:03 Beehive 2.6°S of Moon 12 04:53 FULL MOON 12 14:21 Regulus 2.2°S of Moon 14 21:53 Moon at Descending Node 17 03:01 Spica 0.3°N of Moon 17 16:11 Moon at Apogee: 404882 km 19 09 Venus at Perihelion 20 08:33 LAST QUARTER MOON 20 23:21 Antares 0.4°N of Moon 25 00 Mercury 1.4°N of Saturn 27 15:45 NEW MOON 28 19:03 Mercury 0.4°N of Moon: Occn. 28 20:40 Moon at Ascending Node Mar 01 12:18 Moon at Perigee: 361967 km 04 05 Mercury at Perihelion 05 03:32 Pleiades 0.6°S of Moon 06 02:31 Jupiter 5.6°S of Moon 06 07:32 FIRST QUARTER MOON 07 21 Mercury at Greatest Elong: 18.2°E 08 15:27 Mars 1.7°S of Moon 09 02:06 Pollux 2.0°N of Moon 10 02:10 Beehive 2.6°S of Moon 11 21:07 Regulus 2.2°S of Moon 12 01 Saturn in Conjunction with Sun 12 09 Mercury 5.5°S of Venus 13 21:55 FULL MOON 13 21:59 Total Lunar Eclipse; mag=1.178 14 04:45 Moon at Descending Node 16 10:16 Spica 0.3°N of Moon 17 07:37 Moon at Apogee: 405754 km 19 13 Neptune in Conjunction with Sun 20 00:02 Vernal Equinox 20 06:58 Antares 0.5°N of Moon 22 02:30 LAST QUARTER MOON 22 16 Venus at Inferior Conjunction 24 11 Mercury at Inferior Conjunction 28 07:29 Moon at Ascending Node 29 01:47 Partial Solar Eclipse; mag=0.938 29 01:58 NEW MOON 29 10:29 Mars 3.9°S of Pollux 29 20:26 Moon at Perigee: 358127 kmApr 01 11:28 Pleiades 0.6°S of Moon 02 15:24 Jupiter 5.5°S of Moon 04 17:15 FIRST QUARTER MOON 05 07:46 Pollux 2.0°N of Moon 05 10:04 Mars 2.2°S of Moon 06 07:44 Beehive 2.6°S of Moon 08 02:51 Regulus 2.2°S of Moon 10 03 Mercury 2.1°N of Saturn 10 10:56 Moon at Descending Node 12 15:22 FULL MOON 12 16:39 Spica 0.3°N of Moon 13 13:48 Moon at Apogee: 406295 km 16 13 Mars at Aphelion: 1.66606 AU 16 13:19 Antares 0.4°N of Moon 20 16:36 LAST QUARTER MOON 21 10 Mercury at Greatest Elong: 27.4°W 22 04 Lyrid Meteor Shower 24 16:21 Venus 2.4°N of Moon 24 17:23 Moon at Ascending Node 24 19:15 Saturn 2.3°S of Moon 25 16:05 Mercury 4.4°S of Moon 27 07:15 Moon at Perigee: 357119 km 27 10:31 NEW MOON 28 10 Venus 3.7°N of Saturn 28 21:35 Pleiades 0.5°S of Moon 30 08:34 Jupiter 5.4°S of MoonMay 02 15:02 Pollux 2.1°N of Moon 03 14:12 Mars 2.1°S of Moon 03 14:27 Beehive 2.5°S of Moon 04 03:03 Mars 0.3°N of Beehive 04 04:52 FIRST QUARTER MOON 04 17 Eta-Aquarid Meteor Shower 05 08:58 Regulus 2.0°S of Moon 07 14:44 Moon at Descending Node 09 22:43 Spica 0.4°N of Moon 10 15:49 Moon at Apogee: 406245 km 12 07:56 FULL MOON 13 19:10 Antares 0.3°N of Moon 17 16 Uranus in Conjunction with Sun 20 02:59 LAST QUARTER MOON 21 23:05 Moon at Ascending Node 22 08:51 Saturn 2.8°S of Moon 23 14:52 Venus 4.0°S of Moon 25 16:37 Moon at Perigee: 359023 km 26 18:02 NEW MOON 29 19 Mercury at Superior Conjunction 30 00:13 Pollux 2.3°N of Moon 30 23:00 Beehive 2.2°S of Moon 31 04 Mercury at Perihelion 31 17 Venus at Greatest Elong: 45.9°WJun 01 00:49 Mars 1.4°S of Moon 01 16:30 Regulus 1.8°S of Moon 02 18:41 FIRST QUARTER MOON 03 16:33 Moon at Descending Node 06 05:15 Spica 0.5°N of Moon 07 01:42 Moon at Apogee: 405553 km 08 10 Mercury 2.0°N of Jupiter 10 01:25 Antares 0.3°N of Moon 10 22:44 FULL MOON 11 18 Venus at Aphelion 16 17:05 Mars 0.7°N of Regulus 18 00:41 Moon at Ascending Node 18 10:19 LAST QUARTER MOON 18 18:47 Saturn 3.4°S of Moon 20 17:42 Summer Solstice 21 10:51 Mercury 4.8°S of Pollux 22 17:59 Pleiades 0.6°S of Moon 22 19:43 Moon at Perigee: 363178 km 24 06 Jupiter in Conjunction with Sun 25 01:31 NEW MOON 26 21:02 Mercury 2.9°S of Moon 27 08:42 Beehive 2.0°S of Moon 29 01:26 Regulus 1.5°S of Moon 29 16:05 Mars 0.2°S of Moon: Occn. 30 18:46 Moon at Descending Node | Date AKST Even (h:m)Jul 02 08:36 Mercury 1.2°S of Beehive 02 10:30 FIRST QUARTER MOON 03 12 Earth at Aphelion: 1.01664 AU 03 12:39 Spica 0.8°N of Moon 03 19 Mercury at Greatest Elong: 25.9°E 04 06:44 Venus 6.5°S of Pleiades 04 17:29 Moon at Apogee: 404627 km 07 08:37 Antares 0.4°N of Moon 10 11:37 FULL MOON 12 23:32 Venus 3.1°N of Aldebaran 14 04 Mercury at Aphelion 15 01:42 Moon at Ascending Node 16 01:19 Saturn 3.8°S of Moon 17 15:38 LAST QUARTER MOON 20 01:27 Pleiades 0.7°S of Moon 20 04:52 Moon at Perigee: 368047 km 22 19:20 Jupiter 4.9°S of Moon 24 10:11 NEW MOON 26 10:44 Regulus 1.4°S of Moon 27 19 Delta-Aquarid Meteor Shower 27 23:30 Moon at Descending Node 28 10:45 Mars 1.3°N of Moon 30 20:45 Spica 1.0°N of Moon 31 15 Mercury at Inferior Conjunction Aug 01 03:41 FIRST QUARTER MOON 01 11:37 Moon at Apogee: 404164 km 03 16:40 Antares 0.6°N of Moon 08 22:55 FULL MOON 11 05:53 Moon at Ascending Node 11 22 Venus 0.9°S of Jupiter 12 06:05 Saturn 4.0°S of Moon 12 11 Perseid Meteor Shower 14 09:01 Moon at Perigee: 369287 km 15 20:12 LAST QUARTER MOON 16 07:09 Pleiades 0.9°S of Moon 18 19:58 Mercury 2.6°S of Beehive 19 01 Mercury at Greatest Elong: 18.6°W 19 12:05 Jupiter 4.8°S of Moon 19 21:15 Venus 7.1°S of Pollux 20 01:51 Venus 4.9°S of Moon 20 03:07 Pollux 2.4°N of Moon 21 02:09 Beehive 2.0°S of Moon 21 07:14 Mercury 3.7°S of Moon 22 21:06 NEW MOON 24 06:41 Moon at Descending Node 26 07:41 Mars 2.8°N of Moon 27 03 Mercury at Perihelion 27 04:57 Spica 1.1°N of Moon 29 06:34 Moon at Apogee: 404552 km 30 21:25 FIRST QUARTER MOON 31 00:55 Antares 0.7°N of Moon 31 08:57 Venus 1.4°S of BeehiveSep 07 09:09 FULL MOON 07 09:12 Total Lunar Eclipse; mag=1.362 07 14:08 Moon at Ascending Node 08 11:09 Saturn 4.0°S of Moon 10 03:09 Moon at Perigee: 364781 km 12 12:48 Pleiades 1.0°S of Moon 12 18:28 Mars 2.0°N of Spica 13 02 Mercury at Superior Conjunction 14 01:33 LAST QUARTER MOON 16 02:06 Jupiter 4.6°S of Moon 16 08:58 Pollux 2.4°N of Moon 17 08:24 Beehive 2.0°S of Moon 18 23:57 Venus 0.4°N of Regulus 19 02:11 Regulus 1.3°S of Moon 19 02:46 Venus 0.8°S of Moon: Occn. 20 14:13 Moon at Descending Node 20 20 Saturn at Opposition 21 10:42 Partial Solar Eclipse; mag=0.855 21 10:54 NEW MOON 22 09:20 Autumnal Equinox 23 02 Neptune at Opposition 23 12:31 Spica 1.1°N of Moon 24 05:50 Mars 3.9°N of Moon 26 00:46 Moon at Apogee: 405552 km 27 08:34 Antares 0.6°N of Moon 29 14:54 FIRST QUARTER MOON Oct 02 02 Venus at Perihelion 05 00:20 Moon at Ascending Node 05 17:46 Saturn 3.8°S of Moon 06 18:47 FULL MOON 08 03:36 Moon at Perigee: 359819 km 08 12:17 Jupiter 6.6°S of Pollux 09 20:20 Pleiades 0.9°S of Moon 13 09:13 LAST QUARTER MOON 13 13:31 Jupiter 4.3°S of Moon 13 14:31 Pollux 2.5°N of Moon 14 13:53 Beehive 1.9°S of Moon 16 07:56 Regulus 1.3°S of Moon 17 19:34 Moon at Descending Node 19 11 Mercury 2.0°S of Mars 19 12:37 Venus 3.7°N of Moon 21 03 Orionid Meteor Shower 21 03:25 NEW MOON 23 07:15 Mercury 2.3°N of Moon 23 14:31 Moon at Apogee: 406445 km 24 15:15 Antares 0.5°N of Moon 29 07:21 FIRST QUARTER MOON 29 13 Mercury at Greatest Elong: 23.9°ENov 01 08:46 Moon at Ascending Node 01 16:02 Venus 3.3°N of Spica 02 01:46 Saturn 3.7°S of Moon 05 04 S Taurid Meteor Shower 05 04:19 FULL MOON 05 13:29 Moon at Perigee: 356833 km 06 06:26 Pleiades 0.8°S of Moon 08 17:41 Mercury 2.6°N of Antares 09 21:40 Pollux 2.7°N of Moon 09 22:56 Jupiter 4.0°S of Moon 10 20:27 Beehive 1.7°S of Moon 11 20:28 LAST QUARTER MOON 12 03 N Taurid Meteor Shower 12 13:51 Regulus 1.1°S of Moon 12 19 Mercury 1.2°S of Mars 13 21:38 Moon at Descending Node 17 01:11 Spica 1.2°N of Moon 17 09 Leonid Meteor Shower 19 17:48 Moon at Apogee: 406693 km 19 21:47 NEW MOON 20 00 Mercury at Inferior Conjunction 21 04 Uranus at Opposition 23 02 Mercury at Perihelion 24 15 Mercury 1.0°N of Venus 27 21:59 FIRST QUARTER MOON 28 12:33 Moon at Ascending Node 29 10:08 Saturn 3.7°S of MoonDec 03 17:54 Pleiades 0.8°S of Moon 04 02:06 Moon at Perigee: 356962 km 04 14:14 FULL MOON 07 06:48 Jupiter 3.7°S of Moon 07 07:21 Pollux 2.9°N of Moon 07 12 Mercury at Greatest Elong: 20.7°W 08 05:23 Beehive 1.5°S of Moon 09 21:32 Regulus 0.8°S of Moon 10 22:35 Moon at Descending Node 11 11:52 LAST QUARTER MOON 13 22 Geminid Meteor Shower 14 07:27 Spica 1.4°N of Moon 16 21:09 Moon at Apogee: 406324 km 17 15:19 Jupiter 6.4°S of Pollux 19 05:05 Mercury 5.4°N of Antares 19 16:43 NEW MOON 21 06:03 Winter Solstice 22 07 Ursid Meteor Shower 25 13:03 Moon at Ascending Node 26 18:24 Saturn 4.0°S of Moon 27 10:10 FIRST QUARTER MOON 31 04:21 Pleiades 0.9°S of Moon | |||||||
Terms Used in Astronomical Events Calendar
- Perihelion - instant when a planet is closest to the Sun
- Aphelion - instant when a planet is furthest from the Sun
- Perigee - instant when the Moon is closest to Earth
- Apogee - instant when the Moon is furthest from Earth
- Inferior Conjunction - instant when a planet (Mercury or Venus) passes between Earth and the Sun
- Superior Conjunction - instant when a planet (Mercury or Venus) passes on the opposite side of the Sun from Earth
- Greatest Elongation - the maximum angular separation between the Sun and the planet (Mercury or Venus) as seen from Earth
- during eastern elongation (E), the planet appears as an evening star;
- during western elongation (W), the planet appears as a morning star - Opposition - instant when a planet appears opposite the Sun as seen from Earth
- Conjunction - instant when a planet appears closest the Sun as seen from Earth
- Occultation - the Moon occults or eclipses a star or planet
- Ascending Node - point where the Moon crosses from the southern to northern portion of its orbit
- Descending Node - point where the Moon crosses from the northern to the southern portion of its orbit
- Aldebaran - bright star in the constellation Taurus
- Pollux - bright star in the constellation Gemini
- Regulus - bright star in the constellation Leo
- Spica - bright star in the constellation Virgo
- Antares - bright star in the constellation Scorpius
- Pleiades - bright star cluster in the constellation Taurus
- Beehive - bright star cluster in the constellation Cancer
Calendars of Astronomical Events: 2021 to 2030
The Americas
Below are links to calendars of astronomical events from 2021 to 2030 for seven time zones in the Americas.
Choose a time zone and click on a year to get a calendar of astronomical events for that year.
| Calendars of Astronomical Events - The Americas | |||||||||||||||
| AST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| EST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| CST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| MST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| PST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| AKST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| HST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
- AST = Atlantic Standard Time (= GMT - 4 hours)
- EST = Eastern Standard Time (= GMT - 5 hours)
- CST = Central Standard Time (= GMT - 6 hours)
- MST = Mountain Standard Time (= GMT - 7 hours)
- PST = Pacific Standard Time (= GMT - 8 hours)
- AKST = Alaskan Standard Time (= GMT - 9 hours)
- HST = Hawaiian Standard Time (= GMT - 10 hours)
(where GMT = Greenwich Mean Time)
- Time Zones Abbreviations
A time zone may have a different name in different countries. Note the difference in hours between a given time zone and Greenwich Mean Time to help in identification.
For other years and other time zones, visit: Calendars of Astronomical Events.