2031Calendar of Astronomical Events
2031Phases of the Moon
Pacific Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Pacific Standard Time(Greenwich Mean Time - 8 hours).If Daylight Saving Time is in effect, add one hour to the times listed.
| 2031 Phases of the Moon | |||
| Pacific Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 8 10:26 | Jan 16 04:47 |
| Jan 22 20:31 | Jan 29 23:43 | Feb 7 04:46 | Feb 14 14:50 |
| Feb 21 07:49 | Feb 28 20:02 | Mar 8 20:30 | Mar 15 22:36 |
| Mar 22 19:49 | Mar 30 16:32 | Apr 7 09:21 | Apr 14 04:58 |
| Apr 21 08:57 | Apr 29 11:19 | May 6 19:40 n | May 13 11:07 |
| May 20 23:17 A | May 29 03:20 | Jun 5 03:58 n | Jun 11 18:20 |
| Jun 19 14:25 | Jun 27 16:19 | Jul 4 11:01 | Jul 11 03:50 |
| Jul 19 05:40 | Jul 27 02:35 | Aug 2 17:45 | Aug 9 16:24 |
| Aug 17 20:32 | Aug 25 10:40 | Sep 1 01:20 | Sep 8 08:14 |
| Sep 16 10:47 | Sep 23 17:20 | Sep 30 10:58 | Oct 8 02:50 |
| Oct 16 00:21 | Oct 22 23:36 | Oct 29 23:33 n | Nov 6 23:02 |
| Nov 14 13:10 H | Nov 21 06:45 | Nov 28 15:18 | Dec 6 19:20 |
| Dec 14 01:06 | Dec 20 16:00 | Dec 28 09:33 | - |
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.
2031Calendar of Astronomical Events
Pacific Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Pacific Standard Time(Greenwich Mean Time - 8 hours).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.
| 2031Calendar of Astronomical Events | ||||||||
| Pacific Standard Time | ||||||||
| January - June | July - December | |||||||
Date PST Event (h:m)Jan 03 06:09 Mars 3.6°N of Spica 03 20 Quadrantid Meteor Shower 04 06:42 Pleiades 3.5°N of Moon 04 12 Mercury at Greatest Elong: 22.9°W 04 13 Earth at Perihelion: 0.98326 AU 04 14:42 Saturn 2.4°S of Moon 04 22:37 Moon at Descending Node 05 05:54 Aldebaran 5.2°S of Moon 06 03:00 Moon at Apogee: 406169 km 08 10:26 FULL MOON 12 00:21 Regulus 6.0°N of Moon 16 01:36 Spica 1.5°N of Moon 16 04:47 LAST QUARTER MOON 16 15:25 Mars 5.0°N of Moon 19 00:51 Moon at Ascending Node 19 05:49 Antares 4.9°S of Moon 19 22:34 Jupiter 0.6°S of Moon: Occn. 21 13:41 Moon at Perigee: 359637 km 21 13:53 Mercury 3.7°S of Moon 22 20:31 NEW MOON 27 12 Mercury at Aphelion 29 23:43 FIRST QUARTER MOON 31 13:26 Pleiades 3.7°N of Moon 31 19:57 Saturn 2.2°S of MoonFeb 01 01:25 Moon at Descending Node 01 12:37 Aldebaran 5.0°S of Moon 02 15:45 Moon at Apogee: 405416 km 07 04:46 FULL MOON 08 06:21 Regulus 5.9°N of Moon 08 10:35 Saturn 5.4°S of Pleiades 12 06:57 Spica 1.2°N of Moon 13 17:19 Mars 3.7°N of Moon 14 14:50 LAST QUARTER MOON 15 03:21 Moon at Ascending Node 15 13:00 Antares 5.1°S of Moon 16 14:35 Jupiter 1.3°S of Moon: Occn. 18 16:35 Moon at Perigee: 364745 km 20 05 Mercury at Superior Conjunction 21 07:49 NEW MOON 23 19:28 Venus 5.4°S of Moon 27 21:14 Pleiades 3.9°N of Moon 28 03:02 Moon at Descending Node 28 04:56 Saturn 1.7°S of Moon 28 20:02 FIRST QUARTER MOON 28 20:14 Aldebaran 4.8°S of MoonMar 02 10:57 Moon at Apogee: 404533 km 07 13:51 Regulus 5.9°N of Moon 08 20:30 FULL MOON 11 12:44 Spica 1.0°N of Moon 12 11 Mercury at Perihelion 13 11:27 Mars 2.7°N of Moon 14 03:38 Moon at Ascending Node 14 18:21 Antares 5.4°S of Moon 15 22:36 LAST QUARTER MOON 16 02:06 Jupiter 1.8°S of Moon 17 10:58 Moon at Perigee: 369634 km 18 04 Mercury at Greatest Elong: 18.5°E 20 11:41 Vernal Equinox 22 19:49 NEW MOON 24 02:55 Mercury 0.1°S of Moon: Occn. 25 20:40 Venus 0.9°S of Moon: Occn. 27 06:22 Moon at Descending Node 27 17:01 Saturn 1.2°S of Moon 28 04:30 Aldebaran 4.5°S of Moon 30 07:24 Moon at Apogee: 404227 km 30 16:32 FIRST QUARTER MOON Apr 02 15 Neptune in Conjunction with Sun 03 22:41 Regulus 6.0°N of Moon 04 12 Mercury at Inferior Conjunction 07 09:21 FULL MOON 07 20:35 Spica 0.9°N of Moon 09 18:38 Mars 2.1°N of Moon 10 06:56 Moon at Ascending Node 10 10:05 Venus 2.4°S of Pleiades 11 00:20 Antares 5.6°S of Moon 11 11:13 Moon at Perigee: 367996 km 12 09:56 Jupiter 2.1°S of Moon 14 04:58 LAST QUARTER MOON 15 19 Venus 3.4°N of Saturn 16 11 Venus at Perihelion 18 15:00 Venus 7.3°N of Aldebaran 19 17:29 Mercury 5.5°S of Moon 21 08:57 NEW MOON 22 18 Lyrid Meteor Shower 23 12:22 Moon at Descending Node 24 06:42 Saturn 0.7°S of Moon: Occn. 24 12:36 Aldebaran 4.4°S of Moon 25 00:28 Venus 3.9°N of Moon 27 02:30 Moon at Apogee: 404758 km 29 11:19 FIRST QUARTER MOON May 02 12 Mercury at Greatest Elong: 26.9°W 04 03 Mars at Opposition 05 06:17 Spica 1.0°N of Moon 05 07 Eta-Aquarid Meteor Shower 06 14:45 Mars 1.9°N of Moon 06 19:40 FULL MOON 06 19:51 Pen. Lunar Eclipse; mag=0.881 07 14:55 Moon at Ascending Node 08 08:34 Antares 5.6°S of Moon 08 23:28 Moon at Perigee: 362851 km 09 15:39 Jupiter 2.1°S of Moon 13 11:07 LAST QUARTER MOON 13 22:50 Saturn 3.9°N of Aldebaran 19 06:37 Mercury 4.4°S of Moon 20 19:26 Moon at Descending Node 20 23:15 Annular Solar Eclipse; mag=0.959 20 23:17 NEW MOON 24 18:08 Moon at Apogee: 405723 km 29 01:28 Venus 3.9°S of Pollux 29 03:20 FIRST QUARTER MOON Jun 01 16:22 Spica 1.0°N of Moon 01 19 Venus at Greatest Elong: 45.4°E 02 11:58 Mars 1.4°N of Moon 02 19 Saturn in Conjunction with Sun 04 01:20 Moon at Ascending Node 04 18:45 Antares 5.6°S of Moon 05 03:44 Pen. Lunar Eclipse; mag=0.129 05 03:58 FULL MOON 05 20:42 Jupiter 1.9°S of Moon 06 04:11 Moon at Perigee: 358744 km 08 11 Mercury at Superior Conjunction 08 11 Mercury at Perihelion 11 18:21 LAST QUARTER MOON 13 07:10 Venus 0.5°N of Beehive 14 00 Uranus in Conjunction with Sun 14 23 Jupiter at Opposition 17 01:18 Moon at Descending Node 19 14:25 NEW MOON 21 03:25 Moon at Apogee: 406452 km 21 05:17 Summer Solstice 25 21:02 Mercury 4.7°S of Pollux 27 16:19 FIRST QUARTER MOON 29 01:14 Spica 0.9°N of Moon 29 22:41 Mars 0.4°N of Moon: Occn. | Date PST Event (h:m)Jul 01 10:35 Moon at Ascending Node 02 05:23 Antares 5.7°S of Moon 03 02:02 Jupiter 1.7°S of Moon 04 11:01 FULL MOON 04 13:14 Moon at Perigee: 357008 km 04 19:23 Mercury 0.4°S of Beehive 05 22 Earth at Aphelion: 1.01669 AU 11 03:50 LAST QUARTER MOON 14 04:38 Moon at Descending Node 14 23 Mercury at Greatest Elong: 26.6°E 15 07:49 Aldebaran 4.3°S of Moon 15 22:23 Saturn 0.4°N of Moon: Occn. 16 04:17 Venus 1.3°S of Regulus 18 06:28 Moon at Apogee: 406535 km 19 05:40 NEW MOON 21 15:10 Mercury 3.3°N of Moon 21 18:15 Venus 1.6°N of Moon 22 04:07 Regulus 5.9°N of Moon 22 10 Mercury at Aphelion 25 10 Mercury 1.6°N of Venus 26 08:05 Spica 0.6°N of Moon 26 09:38 Mercury 2.0°S of Regulus 27 02:35 FIRST QUARTER MOON 27 22:06 Mars 1.1°S of Moon: Occn. 28 09 Delta-Aquarid Meteor Shower 28 15:54 Moon at Ascending Node 29 14:44 Antares 5.8°S of Moon 30 08:09 Jupiter 1.7°S of MoonAug 01 22:47 Moon at Perigee: 358060 km 02 17:45 FULL MOON 06 19 Venus at Aphelion 09 16:24 LAST QUARTER MOON 10 06:10 Moon at Descending Node 10 19 Venus at Inferior Conjunction 11 14:01 Aldebaran 4.1°S of Moon 11 20 Mercury at Inferior Conjunction 12 10:11 Saturn 0.7°N of Moon: Occn. 13 01 Perseid Meteor Shower 14 13:37 Moon at Apogee: 405946 km 17 20:32 NEW MOON 22 13:30 Spica 0.4°N of Moon 24 17:21 Moon at Ascending Node 25 05:38 Mars 2.8°S of Moon 25 10:40 FIRST QUARTER MOON 25 21:52 Antares 6.1°S of Moon 26 15:28 Jupiter 2.0°S of Moon 29 09 Mercury at Greatest Elong: 18.2°W 30 04:53 Moon at Perigee: 361684 kmSep 01 01:20 FULL MOON 04 10 Mercury at Perihelion 06 08:34 Moon at Descending Node 07 21:21 Aldebaran 3.8°S of Moon 08 08:14 LAST QUARTER MOON 08 21:03 Saturn 1.1°N of Moon: Occn. 10 03:09 Mars 2.5°N of Antares 11 03:54 Moon at Apogee: 405006 km 13 02:17 Venus 0.4°S of Moon: Occn. 14 16:46 Regulus 5.8°N of Moon 16 10:47 NEW MOON 18 19:05 Spica 0.2°N of Moon 20 18:24 Moon at Ascending Node 22 03:20 Antares 6.3°S of Moon 22 18:35 Mars 4.4°S of Moon 22 21:15 Autumnal Equinox 23 00:42 Jupiter 2.5°S of Moon 23 17:20 FIRST QUARTER MOON 23 17 Mercury at Superior Conjunction 26 23:09 Moon at Perigee: 366841 km 28 17 Mars 2.2°S of Jupiter 30 10:58 FULL MOON Oct 03 14:03 Moon at Descending Node 05 05:48 Aldebaran 3.6°S of Moon 06 06:25 Saturn 1.3°N of Moon 07 07 Neptune at Opposition 08 02:50 LAST QUARTER MOON 08 22:23 Moon at Apogee: 404365 km 09 02:13 Venus 2.1°S of Regulus 12 00:53 Regulus 5.9°N of Moon 12 05:45 Venus 4.0°N of Moon 16 00:21 NEW MOON 17 06:11 Mercury 0.2°S of Moon: Occn. 17 22:54 Moon at Ascending Node 20 12:53 Jupiter 3.0°S of Moon 21 05 Venus at Greatest Elong: 46.4°W 21 11:29 Mars 5.9°S of Moon 21 17 Orionid Meteor Shower 22 12:06 Moon at Perigee: 370022 km 22 23:36 FIRST QUARTER MOON 29 23:33 FULL MOON 29 23:45 Pen. Lunar Eclipse; mag=0.716 30 22:09 Moon at Descending Node Nov 01 14:35 Aldebaran 3.6°S of Moon 02 13:32 Saturn 1.3°N of Moon 05 17 S Taurid Meteor Shower 05 18:45 Moon at Apogee: 404522 km 06 23:02 LAST QUARTER MOON 09 02:11 Mercury 1.8°N of Antares 09 07 Mercury at Greatest Elong: 23.1°E 11 02:41 Venus 5.5°N of Moon 12 11:40 Spica 0.2°N of Moon 12 17 N Taurid Meteor Shower 14 07:32 Moon at Ascending Node 14 13:06 Hybrid Solar Eclipse; mag=1.011 14 13:10 NEW MOON 16 00 Mars at Perihelion: 1.38145 AU 16 02:48 Mercury 4.7°S of Moon 17 04:51 Jupiter 3.4°S of Moon 17 14:07 Moon at Perigee: 365930 km 17 23 Leonid Meteor Shower 21 06:45 FIRST QUARTER MOON 27 03 Venus at Perihelion 27 06:01 Moon at Descending Node 28 15:18 FULL MOON 28 17:24 Venus 3.9°N of Spica 28 22:36 Aldebaran 3.6°S of Moon 29 18:00 Saturn 1.1°N of Moon: Occn. 29 19 Mercury at Inferior Conjunction Dec 01 09 Mercury at Perihelion 03 14:35 Moon at Apogee: 405355 km 06 19:20 LAST QUARTER MOON 09 21:42 Spica 0.2°N of Moon 11 01:18 Venus 3.3°N of Moon 11 11 Saturn at Opposition 11 17:37 Moon at Ascending Node 12 14:17 Mercury 1.6°N of Moon 14 01:06 NEW MOON 14 12 Geminid Meteor Shower 15 13:31 Moon at Perigee: 360489 km 17 03 Uranus at Opposition 18 02 Mercury at Greatest Elong: 21.5°W 20 16:00 FIRST QUARTER MOON 21 17:56 Winter Solstice 22 21 Ursid Meteor Shower 22 22:32 Mercury 6.0°N of Antares 24 10:44 Moon at Descending Node 26 05:13 Aldebaran 3.6°S of Moon 26 20:28 Saturn 1.0°N of Moon: Occn. 28 09:33 FULL MOON 31 05:16 Moon at Apogee: 406203 km | |||||||
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: 2031 to 2040
The Americas
Below are links to calendars of astronomical events from 2031 to 2040 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 | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
| EST | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
| CST | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
| MST | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
| PST | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
| AKST | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
| HST | 2031 | 2032 | 2033 | 2034 | 2035 | 2036 | 2037 | 2038 | 2039 | 2040 | |||||
- 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.