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