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