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