2031Calendar of Astronomical Events

    

2031Phases of the Moon

Greenwich Mean Time

The following table gives the date and time of the Moon's phases for the year. The times listed are for Greenwich Mean Time.If Daylight Saving Time is in effect, add one hour to the times listed.

2031 Phases of the Moon
Greenwich Mean Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 8 18:26 Jan 16 12:47
Jan 23 04:31 Jan 30 07:43 Feb 7 12:46 Feb 14 22:50
Feb 21 15:49 Mar 1 04:02 Mar 9 04:30 Mar 16 06:36
Mar 23 03:49 Mar 31 00:32 Apr 7 17:21 Apr 14 12:58
Apr 21 16:57 Apr 29 19:19 May 7 03:40 n May 13 19:07
May 21 07:17 A May 29 11:20 Jun 5 11:58 n Jun 12 02:20
Jun 19 22:25 Jun 28 00:19 Jul 4 19:01 Jul 11 11:50
Jul 19 13:40 Jul 27 10:35 Aug 3 01:45 Aug 10 00:24
Aug 18 04:32 Aug 25 18:40 Sep 1 09:20 Sep 8 16:14
Sep 16 18:47 Sep 24 01:20 Sep 30 18:58 Oct 8 10:50
Oct 16 08:21 Oct 23 07:36 Oct 30 07:33 n Nov 7 07:02
Nov 14 21:10 H Nov 21 14:45 Nov 28 23:18 Dec 7 03:20
Dec 14 09:06 Dec 21 00:00 Dec 28 17:33 -

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

Greenwich Mean Time

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

Europe, Africa, and the Middle East

Below are links to calendars of astronomical events from 2031 to 2040 for five time zones
in Europe, Africa, and the Middle East.
Choose a time zone and click on a year to get a calendar of astronomical events for that year.

Calendar of Astronomical Events - Europe, Africa, & Middle East
GMT 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
CET 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
EET 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
MSK 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
GST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040

        Time Zones Abbreviations
        • GMT = Greenwich Mean Time
        • CET = Central European Time (= GMT + 1 hour)
        • EET = Eastern European Time (= GMT + 2 hours)
        • MSK = Moscow Time (= GMT + 3 hours)
        • GST = Gulf Standard Time (= GMT + 4 hours)

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.

Accuracy of the Astronomical Events Calendars

The goal of the Astronomical Events Calendars is to present a wide range of solar system phenomena with reasonable accuracy. In general, events listed to the nearest hour are accurate to ± 30 minutes.Events listed with a precision in hours and minutes (i.e., hh:mm) are typically accurate to ± 5 minutes or less.

The following table gives a more detailed breakdown of the accuracy of times for various astronomical events.

Accuracy of the Astronomical Events Calendars
Solstice/Equinox (Earth) ± 0.5 minute
Aphelion/Perihelion (Earth) ± 30 minutes; ± 0.00001 AU
Solar and Lunar Eclipses ± 0.5 minute
Phases of the Moon ± 0.5 minute
Moon at Nodes ± 2 minutes
Apogee/Perigee of Moon ± 5 minutes; ± 5 kilometers
Conjunctions of Moon with Star or Planet ± 10 minutes
Conjunctions of Planet with Planet ± 3 hours
Inferior/Superior Conjunctions (Mercury & Venus) ± 30 minutes
Greatest Elongation (Mercury & Venus) ± 30 minutes
Opposition/Conjunction (Outer Planets) ± 3 hours
Aphelion/Perihelion of Planets ± 30 minutes

Acknowledgements

All calculations are by Fred Espenak and he assumes full responsibility for their accuracy. Algorithms used in predicting many of the astronomical events are based on Astronomical Algorithms by Jean Meeus (Willmann-Bell Inc. Richmond 1998).

Permission is freely granted to reproduce this data when accompanied by the acknowledgment:


Return to: Calendars of Astronomical Events

Return to: Planetary Ephemeris Data