2025Calendar of Astronomical Events
2025Phases of the Moon
Atlantic Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Atlantic Standard Time(Greenwich Mean Time - 4 hours).If Daylight Saving Time is in effect, add one hour to the times listed.
| 2025 Phases of the Moon | |||
| Atlantic Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | Jan 6 19:56 | Jan 13 18:27 | Jan 21 16:31 |
| Jan 29 08:36 | Feb 5 04:02 | Feb 12 09:53 | Feb 20 13:33 |
| Feb 27 20:45 | Mar 6 12:32 | Mar 14 02:55 t | Mar 22 07:30 |
| Mar 29 06:58 P | Apr 4 22:15 | Apr 12 20:22 | Apr 20 21:36 |
| Apr 27 15:31 | May 4 09:52 | May 12 12:56 | May 20 07:59 |
| May 26 23:02 | Jun 2 23:41 | Jun 11 03:44 | Jun 18 15:19 |
| Jun 25 06:31 | Jul 2 15:30 | Jul 10 16:37 | Jul 17 20:38 |
| Jul 24 15:11 | Aug 1 08:41 | Aug 9 03:55 | Aug 16 01:12 |
| Aug 23 02:06 | Aug 31 02:25 | Sep 7 14:09 t | Sep 14 06:33 |
| Sep 21 15:54 P | Sep 29 19:54 | Oct 6 23:47 | Oct 13 14:13 |
| Oct 21 08:25 | Oct 29 12:21 | Nov 5 09:19 | Nov 12 01:28 |
| Nov 20 02:47 | Nov 28 02:59 | Dec 4 19:14 | Dec 11 16:52 |
| Dec 19 21:43 | Dec 27 15:10 | - | - |
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
Atlantic Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Atlantic Standard Time(Greenwich Mean Time - 4 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 | ||||||||
| Atlantic Standard Time | ||||||||
| January - June | July - December | |||||||
Date AST Event (h:m)Jan 03 11:24 Venus 1.4°N of Moon 03 11 Quadrantid Meteor Shower 04 10 Earth at Perihelion: 0.98333 AU 04 13:18 Saturn 0.7°S of Moon: Occn. 05 15:46 Moon at Ascending Node 06 19:56 FIRST QUARTER MOON 07 19:34 Moon at Perigee: 370173 km 09 21:01 Pleiades 0.3°S of Moon 10 00 Venus at Greatest Elong: 47.2°E 10 19:13 Jupiter 5.4°S of Moon 13 17:45 Pollux 2.1°N of Moon 13 18:27 FULL MOON 13 23:42 Mars 0.2°S of Moon: Occn. 14 17:03 Beehive 2.6°S of Moon 15 21 Mars at Opposition 16 10:57 Regulus 2.2°S of Moon 18 12 Venus 2.2°N of Saturn 18 21:48 Moon at Descending Node 19 10 Mercury at Aphelion 20 23:53 Spica 0.1°N of Moon 21 00:55 Moon at Apogee: 404299 km 21 16:31 LAST QUARTER MOON 23 13:07 Mars 2.3°S of Pollux 24 19:34 Antares 0.3°N of Moon 29 08:36 NEW MOON 31 16:27 Jupiter 5.1°N of AldebaranFeb 01 00:46 Saturn 1.1°S of Moon: Occn. 01 16:27 Venus 2.3°N of Moon 01 18:06 Moon at Ascending Node 01 22:43 Moon at Perigee: 367457 km 05 04:02 FIRST QUARTER MOON 06 02:43 Pleiades 0.5°S of Moon 06 23:35 Jupiter 5.5°S of Moon 09 08 Mercury at Superior Conjunction 09 15:36 Mars 0.8°S of Moon: Occn. 10 01:19 Pollux 2.1°N of Moon 11 01:03 Beehive 2.6°S of Moon 12 09:53 FULL MOON 12 19:21 Regulus 2.2°S of Moon 15 02:53 Moon at Descending Node 17 08:01 Spica 0.3°N of Moon 17 21:11 Moon at Apogee: 404882 km 19 14 Venus at Perihelion 20 13:33 LAST QUARTER MOON 21 04:21 Antares 0.4°N of Moon 25 05 Mercury 1.4°N of Saturn 27 20:45 NEW MOON Mar 01 00:03 Mercury 0.4°N of Moon: Occn. 01 01:40 Moon at Ascending Node 01 17:18 Moon at Perigee: 361967 km 04 10 Mercury at Perihelion 05 08:32 Pleiades 0.6°S of Moon 06 07:31 Jupiter 5.6°S of Moon 06 12:32 FIRST QUARTER MOON 08 02 Mercury at Greatest Elong: 18.2°E 08 20:27 Mars 1.7°S of Moon 09 07:06 Pollux 2.0°N of Moon 10 07:10 Beehive 2.6°S of Moon 12 02:07 Regulus 2.2°S of Moon 12 06 Saturn in Conjunction with Sun 12 14 Mercury 5.5°S of Venus 14 02:55 FULL MOON 14 02:59 Total Lunar Eclipse; mag=1.178 14 09:45 Moon at Descending Node 16 15:16 Spica 0.3°N of Moon 17 12:37 Moon at Apogee: 405754 km 19 18 Neptune in Conjunction with Sun 20 05:02 Vernal Equinox 20 11:58 Antares 0.5°N of Moon 22 07:30 LAST QUARTER MOON 22 21 Venus at Inferior Conjunction 24 16 Mercury at Inferior Conjunction 28 12:29 Moon at Ascending Node 29 06:47 Partial Solar Eclipse; mag=0.938 29 06:58 NEW MOON 29 15:29 Mars 3.9°S of Pollux 30 01:26 Moon at Perigee: 358127 kmApr 01 16:28 Pleiades 0.6°S of Moon 02 20:24 Jupiter 5.5°S of Moon 04 22:15 FIRST QUARTER MOON 05 12:46 Pollux 2.0°N of Moon 05 15:04 Mars 2.2°S of Moon 06 12:44 Beehive 2.6°S of Moon 08 07:51 Regulus 2.2°S of Moon 10 08 Mercury 2.1°N of Saturn 10 15:56 Moon at Descending Node 12 20:22 FULL MOON 12 21:39 Spica 0.3°N of Moon 13 18:48 Moon at Apogee: 406295 km 16 18 Mars at Aphelion: 1.66606 AU 16 18:19 Antares 0.4°N of Moon 20 21:36 LAST QUARTER MOON 21 15 Mercury at Greatest Elong: 27.4°W 22 09 Lyrid Meteor Shower 24 21:21 Venus 2.4°N of Moon 24 22:23 Moon at Ascending Node 25 00:15 Saturn 2.3°S of Moon 25 21:05 Mercury 4.4°S of Moon 27 12:15 Moon at Perigee: 357119 km 27 15:31 NEW MOON 28 15 Venus 3.7°N of Saturn 29 02:35 Pleiades 0.5°S of Moon 30 13:34 Jupiter 5.4°S of MoonMay 02 20:02 Pollux 2.1°N of Moon 03 19:12 Mars 2.1°S of Moon 03 19:27 Beehive 2.5°S of Moon 04 08:03 Mars 0.3°N of Beehive 04 09:52 FIRST QUARTER MOON 04 22 Eta-Aquarid Meteor Shower 05 13:58 Regulus 2.0°S of Moon 07 19:44 Moon at Descending Node 10 03:43 Spica 0.4°N of Moon 10 20:49 Moon at Apogee: 406245 km 12 12:56 FULL MOON 14 00:10 Antares 0.3°N of Moon 17 21 Uranus in Conjunction with Sun 20 07:59 LAST QUARTER MOON 22 04:05 Moon at Ascending Node 22 13:51 Saturn 2.8°S of Moon 23 19:52 Venus 4.0°S of Moon 25 21:37 Moon at Perigee: 359023 km 26 23:02 NEW MOON 30 00 Mercury at Superior Conjunction 30 05:13 Pollux 2.3°N of Moon 31 04:00 Beehive 2.2°S of Moon 31 09 Mercury at Perihelion 31 22 Venus at Greatest Elong: 45.9°WJun 01 05:49 Mars 1.4°S of Moon 01 21:30 Regulus 1.8°S of Moon 02 23:41 FIRST QUARTER MOON 03 21:33 Moon at Descending Node 06 10:15 Spica 0.5°N of Moon 07 06:42 Moon at Apogee: 405553 km 08 15 Mercury 2.0°N of Jupiter 10 06:25 Antares 0.3°N of Moon 11 03:44 FULL MOON 11 23 Venus at Aphelion 16 22:05 Mars 0.7°N of Regulus 18 05:41 Moon at Ascending Node 18 15:19 LAST QUARTER MOON 18 23:47 Saturn 3.4°S of Moon 20 22:42 Summer Solstice 21 15:51 Mercury 4.8°S of Pollux 22 22:59 Pleiades 0.6°S of Moon 23 00:43 Moon at Perigee: 363178 km 24 11 Jupiter in Conjunction with Sun 25 06:31 NEW MOON 27 02:02 Mercury 2.9°S of Moon 27 13:42 Beehive 2.0°S of Moon 29 06:26 Regulus 1.5°S of Moon 29 21:05 Mars 0.2°S of Moon: Occn. 30 23:46 Moon at Descending Node | Date AST Event (h:m)Jul 02 13:36 Mercury 1.2°S of Beehive 02 15:30 FIRST QUARTER MOON 03 17 Earth at Aphelion: 1.01664 AU 03 17:39 Spica 0.8°N of Moon 04 00 Mercury at Greatest Elong: 25.9°E 04 11:44 Venus 6.5°S of Pleiades 04 22:29 Moon at Apogee: 404627 km 07 13:37 Antares 0.4°N of Moon 10 16:37 FULL MOON 13 04:32 Venus 3.1°N of Aldebaran 14 09 Mercury at Aphelion 15 06:42 Moon at Ascending Node 16 06:19 Saturn 3.8°S of Moon 17 20:38 LAST QUARTER MOON 20 06:27 Pleiades 0.7°S of Moon 20 09:52 Moon at Perigee: 368047 km 23 00:20 Jupiter 4.9°S of Moon 24 15:11 NEW MOON 26 15:44 Regulus 1.4°S of Moon 28 00 Delta-Aquarid Meteor Shower 28 04:30 Moon at Descending Node 28 15:45 Mars 1.3°N of Moon 31 01:45 Spica 1.0°N of Moon 31 20 Mercury at Inferior Conjunction Aug 01 08:41 FIRST QUARTER MOON 01 16:37 Moon at Apogee: 404164 km 03 21:40 Antares 0.6°N of Moon 09 03:55 FULL MOON 11 10:53 Moon at Ascending Node 12 03 Venus 0.9°S of Jupiter 12 11:05 Saturn 4.0°S of Moon 12 16 Perseid Meteor Shower 14 14:01 Moon at Perigee: 369287 km 16 01:12 LAST QUARTER MOON 16 12:09 Pleiades 0.9°S of Moon 19 00:58 Mercury 2.6°S of Beehive 19 06 Mercury at Greatest Elong: 18.6°W 19 17:05 Jupiter 4.8°S of Moon 20 02:15 Venus 7.1°S of Pollux 20 06:51 Venus 4.9°S of Moon 20 08:07 Pollux 2.4°N of Moon 21 07:09 Beehive 2.0°S of Moon 21 12:14 Mercury 3.7°S of Moon 23 02:06 NEW MOON 24 11:41 Moon at Descending Node 26 12:41 Mars 2.8°N of Moon 27 08 Mercury at Perihelion 27 09:57 Spica 1.1°N of Moon 29 11:34 Moon at Apogee: 404552 km 31 02:25 FIRST QUARTER MOON 31 05:55 Antares 0.7°N of Moon 31 13:57 Venus 1.4°S of BeehiveSep 07 14:09 FULL MOON 07 14:12 Total Lunar Eclipse; mag=1.362 07 19:08 Moon at Ascending Node 08 16:09 Saturn 4.0°S of Moon 10 08:09 Moon at Perigee: 364781 km 12 17:48 Pleiades 1.0°S of Moon 12 23:28 Mars 2.0°N of Spica 13 07 Mercury at Superior Conjunction 14 06:33 LAST QUARTER MOON 16 07:06 Jupiter 4.6°S of Moon 16 13:58 Pollux 2.4°N of Moon 17 13:24 Beehive 2.0°S of Moon 19 04:57 Venus 0.4°N of Regulus 19 07:11 Regulus 1.3°S of Moon 19 07:46 Venus 0.8°S of Moon: Occn. 20 19:13 Moon at Descending Node 21 01 Saturn at Opposition 21 15:42 Partial Solar Eclipse; mag=0.855 21 15:54 NEW MOON 22 14:20 Autumnal Equinox 23 07 Neptune at Opposition 23 17:31 Spica 1.1°N of Moon 24 10:50 Mars 3.9°N of Moon 26 05:46 Moon at Apogee: 405552 km 27 13:34 Antares 0.6°N of Moon 29 19:54 FIRST QUARTER MOON Oct 02 07 Venus at Perihelion 05 05:20 Moon at Ascending Node 05 22:46 Saturn 3.8°S of Moon 06 23:47 FULL MOON 08 08:36 Moon at Perigee: 359819 km 08 17:17 Jupiter 6.6°S of Pollux 10 01:20 Pleiades 0.9°S of Moon 13 14:13 LAST QUARTER MOON 13 18:31 Jupiter 4.3°S of Moon 13 19:31 Pollux 2.5°N of Moon 14 18:53 Beehive 1.9°S of Moon 16 12:56 Regulus 1.3°S of Moon 18 00:34 Moon at Descending Node 19 16 Mercury 2.0°S of Mars 19 17:37 Venus 3.7°N of Moon 21 08 Orionid Meteor Shower 21 08:25 NEW MOON 23 12:15 Mercury 2.3°N of Moon 23 19:31 Moon at Apogee: 406445 km 24 20:15 Antares 0.5°N of Moon 29 12:21 FIRST QUARTER MOON 29 18 Mercury at Greatest Elong: 23.9°ENov 01 13:46 Moon at Ascending Node 01 21:02 Venus 3.3°N of Spica 02 06:46 Saturn 3.7°S of Moon 05 09 S Taurid Meteor Shower 05 09:19 FULL MOON 05 18:29 Moon at Perigee: 356833 km 06 11:26 Pleiades 0.8°S of Moon 08 22:41 Mercury 2.6°N of Antares 10 02:40 Pollux 2.7°N of Moon 10 03:56 Jupiter 4.0°S of Moon 11 01:27 Beehive 1.7°S of Moon 12 01:28 LAST QUARTER MOON 12 08 N Taurid Meteor Shower 12 18:51 Regulus 1.1°S of Moon 13 00 Mercury 1.2°S of Mars 14 02:38 Moon at Descending Node 17 06:11 Spica 1.2°N of Moon 17 14 Leonid Meteor Shower 19 22:48 Moon at Apogee: 406693 km 20 02:47 NEW MOON 20 05 Mercury at Inferior Conjunction 21 09 Uranus at Opposition 23 07 Mercury at Perihelion 24 20 Mercury 1.0°N of Venus 28 02:59 FIRST QUARTER MOON 28 17:33 Moon at Ascending Node 29 15:08 Saturn 3.7°S of MoonDec 03 22:54 Pleiades 0.8°S of Moon 04 07:06 Moon at Perigee: 356962 km 04 19:14 FULL MOON 07 11:48 Jupiter 3.7°S of Moon 07 12:21 Pollux 2.9°N of Moon 07 17 Mercury at Greatest Elong: 20.7°W 08 10:23 Beehive 1.5°S of Moon 10 02:32 Regulus 0.8°S of Moon 11 03:35 Moon at Descending Node 11 16:52 LAST QUARTER MOON 14 03 Geminid Meteor Shower 14 12:27 Spica 1.4°N of Moon 17 02:09 Moon at Apogee: 406324 km 17 20:19 Jupiter 6.4°S of Pollux 19 10:05 Mercury 5.4°N of Antares 19 21:43 NEW MOON 21 11:03 Winter Solstice 22 12 Ursid Meteor Shower 25 18:03 Moon at Ascending Node 26 23:24 Saturn 4.0°S of Moon 27 15:10 FIRST QUARTER MOON 31 09:21 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.