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