2031Calendar of Astronomical Events

    
2031Phases of the Moon
Gulf Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Gulf 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   
      Gulf Standard Time
 New Moon  First Quarter  Full Moon  Last Quarter 
-- Jan  8  22:26    Jan 16  16:47   
 Jan 23  08:31    Jan 30  11:43    Feb  7  16:46    Feb 15  02:50   
 Feb 21  19:49    Mar  1  08:02    Mar  9  08:30    Mar 16  10:36   
 Mar 23  07:49    Mar 31  04:32    Apr  7  21:21    Apr 14  16:58   
 Apr 21  20:57    Apr 29  23:19    May  7  07:40 n  May 13  23:07   
 May 21  11:17 A  May 29  15:20    Jun  5  15:58 n  Jun 12  06:20   
 Jun 20  02:25    Jun 28  04:19    Jul  4  23:01    Jul 11  15:50   
 Jul 19  17:40    Jul 27  14:35    Aug  3  05:45    Aug 10  04:24   
 Aug 18  08:32    Aug 25  22:40    Sep  1  13:20    Sep  8  20:14   
 Sep 16  22:47    Sep 24  05:20    Sep 30  22:58    Oct  8  14:50   
 Oct 16  12:21    Oct 23  11:36    Oct 30  11:33 n  Nov  7  11:02   
 Nov 15  01:10 H  Nov 21  18:45    Nov 29  03:18    Dec  7  07:20   
 Dec 14  13:06    Dec 21  04:00    Dec 28  21:33   -
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
Gulf Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Gulf 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   
   Gulf Standard Time  
 January - June   July - December 
Date     GST   Event        (h:m)Jan 03  18:09  Mars 3.6°N of Spica    04  08     Quadrantid Meteor Shower    04  18:42  Pleiades 3.5°N of Moon    05  00     Mercury at Greatest Elong: 22.9°W    05  01     Earth at Perihelion: 0.98326 AU    05  02:42  Saturn 2.4°S of Moon    05  10:37  Moon at Descending Node     05  17:54  Aldebaran 5.2°S of Moon    06  15:00  Moon at Apogee: 406169 km    08  22:26  FULL MOON     12  12:21  Regulus 6.0°N of Moon    16  13:36  Spica 1.5°N of Moon    16  16:47  LAST QUARTER MOON     17  03:25  Mars 5.0°N of Moon    19  12:51  Moon at Ascending Node     19  17:49  Antares 4.9°S of Moon    20  10:34  Jupiter 0.6°S of Moon: Occn.    22  01:41  Moon at Perigee: 359637 km    22  01:53  Mercury 3.7°S of Moon    23  08:31  NEW MOON     28  00     Mercury at Aphelion     30  11:43  FIRST QUARTER MOON Feb 01  01:26  Pleiades 3.7°N of Moon    01  07:57  Saturn 2.2°S of Moon    01  13:25  Moon at Descending Node     02  00:37  Aldebaran 5.0°S of Moon    03  03:45  Moon at Apogee: 405416 km    07  16:46  FULL MOON     08  18:21  Regulus 5.9°N of Moon    08  22:35  Saturn 5.4°S of Pleiades    12  18:57  Spica 1.2°N of Moon    14  05:19  Mars 3.7°N of Moon    15  02:50  LAST QUARTER MOON     15  15:21  Moon at Ascending Node     16  01:00  Antares 5.1°S of Moon    17  02:35  Jupiter 1.3°S of Moon: Occn.    19  04:35  Moon at Perigee: 364745 km    20  17     Mercury at Superior Conjunction     21  19:49  NEW MOON     24  07:28  Venus 5.4°S of Moon    28  09:14  Pleiades 3.9°N of Moon    28  15:02  Moon at Descending Node     28  16:56  Saturn 1.7°S of MoonMar 01  08:02  FIRST QUARTER MOON     01  08:14  Aldebaran 4.8°S of Moon    02  22:57  Moon at Apogee: 404533 km    08  01:51  Regulus 5.9°N of Moon    09  08:30  FULL MOON     12  00:44  Spica 1.0°N of Moon    12  23     Mercury at Perihelion     13  23:27  Mars 2.7°N of Moon    14  15:38  Moon at Ascending Node     15  06:21  Antares 5.4°S of Moon    16  10:36  LAST QUARTER MOON     16  14:06  Jupiter 1.8°S of Moon    17  22:58  Moon at Perigee: 369634 km    18  16     Mercury at Greatest Elong: 18.5°E    20  23:41  Vernal Equinox     23  07:49  NEW MOON     24  14:55  Mercury 0.1°S of Moon: Occn.    26  08:40  Venus 0.9°S of Moon: Occn.    27  18:22  Moon at Descending Node     28  05:01  Saturn 1.2°S of Moon    28  16:30  Aldebaran 4.5°S of Moon    30  19:24  Moon at Apogee: 404227 km    31  04:32  FIRST QUARTER MOON Apr 03  03     Neptune in Conjunction with Sun     04  10:41  Regulus 6.0°N of Moon    05  00     Mercury at Inferior Conjunction     07  21:21  FULL MOON     08  08:35  Spica 0.9°N of Moon    10  06:38  Mars 2.1°N of Moon    10  18:56  Moon at Ascending Node     10  22:05  Venus 2.4°S of Pleiades    11  12:20  Antares 5.6°S of Moon    11  23:13  Moon at Perigee: 367996 km    12  21:56  Jupiter 2.1°S of Moon    14  16:58  LAST QUARTER MOON     16  07     Venus 3.4°N of Saturn    16  23     Venus at Perihelion     19  03:00  Venus 7.3°N of Aldebaran    20  05:29  Mercury 5.5°S of Moon    21  20:57  NEW MOON     23  06     Lyrid Meteor Shower    24  00:22  Moon at Descending Node     24  18:42  Saturn 0.7°S of Moon: Occn.    25  00:36  Aldebaran 4.4°S of Moon    25  12:28  Venus 3.9°N of Moon    27  14:30  Moon at Apogee: 404758 km    29  23:19  FIRST QUARTER MOON May 03  00     Mercury at Greatest Elong: 26.9°W    04  15     Mars at Opposition     05  18:17  Spica 1.0°N of Moon    05  19     Eta-Aquarid Meteor Shower    07  02:45  Mars 1.9°N of Moon    07  07:40  FULL MOON     07  07:51  Pen. Lunar Eclipse; mag=0.881    08  02:55  Moon at Ascending Node     08  20:34  Antares 5.6°S of Moon    09  11:28  Moon at Perigee: 362851 km    10  03:39  Jupiter 2.1°S of Moon    13  23:07  LAST QUARTER MOON     14  10:50  Saturn 3.9°N of Aldebaran    19  18:37  Mercury 4.4°S of Moon    21  07:26  Moon at Descending Node     21  11:15  Annular Solar Eclipse; mag=0.959    21  11:17  NEW MOON     25  06:08  Moon at Apogee: 405723 km    29  13:28  Venus 3.9°S of Pollux    29  15:20  FIRST QUARTER MOON Jun 02  04:22  Spica 1.0°N of Moon    02  07     Venus at Greatest Elong: 45.4°E    02  23:58  Mars 1.4°N of Moon    03  07     Saturn in Conjunction with Sun     04  13:20  Moon at Ascending Node     05  06:45  Antares 5.6°S of Moon    05  15:44  Pen. Lunar Eclipse; mag=0.129    05  15:58  FULL MOON     06  08:42  Jupiter 1.9°S of Moon    06  16:11  Moon at Perigee: 358744 km    08  23     Mercury at Superior Conjunction     08  23     Mercury at Perihelion     12  06:21  LAST QUARTER MOON     13  19:10  Venus 0.5°N of Beehive    14  12     Uranus in Conjunction with Sun     15  11     Jupiter at Opposition     17  13:18  Moon at Descending Node     20  02:25  NEW MOON     21  15:25  Moon at Apogee: 406452 km    21  17:17  Summer Solstice     26  09:02  Mercury 4.7°S of Pollux    28  04:19  FIRST QUARTER MOON     29  13:14  Spica 0.9°N of Moon    30  10:41  Mars 0.4°N of Moon: Occn.
Date     GST   Event        (h:m)Jul 01  22:35  Moon at Ascending Node     02  17:23  Antares 5.7°S of Moon    03  14:02  Jupiter 1.7°S of Moon    04  23:01  FULL MOON     05  01:14  Moon at Perigee: 357008 km    05  07:23  Mercury 0.4°S of Beehive    06  10     Earth at Aphelion: 1.01669 AU    11  15:50  LAST QUARTER MOON     14  16:38  Moon at Descending Node     15  11     Mercury at Greatest Elong: 26.6°E    15  19:49  Aldebaran 4.3°S of Moon    16  10:23  Saturn 0.4°N of Moon: Occn.    16  16:17  Venus 1.3°S of Regulus    18  18:28  Moon at Apogee: 406535 km    19  17:40  NEW MOON     22  03:10  Mercury 3.3°N of Moon    22  06:15  Venus 1.6°N of Moon    22  16:07  Regulus 5.9°N of Moon    22  22     Mercury at Aphelion     25  22     Mercury 1.6°N of Venus    26  20:05  Spica 0.6°N of Moon    26  21:38  Mercury 2.0°S of Regulus    27  14:35  FIRST QUARTER MOON     28  10:06  Mars 1.1°S of Moon: Occn.    28  21     Delta-Aquarid Meteor Shower    29  03:54  Moon at Ascending Node     30  02:44  Antares 5.8°S of Moon    30  20:09  Jupiter 1.7°S of MoonAug 02  10:47  Moon at Perigee: 358060 km    03  05:45  FULL MOON     07  07     Venus at Aphelion     10  04:24  LAST QUARTER MOON     10  18:10  Moon at Descending Node     11  07     Venus at Inferior Conjunction     12  02:01  Aldebaran 4.1°S of Moon    12  08     Mercury at Inferior Conjunction     12  22:11  Saturn 0.7°N of Moon: Occn.    13  13     Perseid Meteor Shower    15  01:37  Moon at Apogee: 405946 km    18  08:32  NEW MOON     23  01:30  Spica 0.4°N of Moon    25  05:21  Moon at Ascending Node     25  17:38  Mars 2.8°S of Moon    25  22:40  FIRST QUARTER MOON     26  09:52  Antares 6.1°S of Moon    27  03:28  Jupiter 2.0°S of Moon    29  21     Mercury at Greatest Elong: 18.2°W    30  16:53  Moon at Perigee: 361684 kmSep 01  13:20  FULL MOON     04  22     Mercury at Perihelion     06  20:34  Moon at Descending Node     08  09:21  Aldebaran 3.8°S of Moon    08  20:14  LAST QUARTER MOON     09  09:03  Saturn 1.1°N of Moon: Occn.    10  15:09  Mars 2.5°N of Antares    11  15:54  Moon at Apogee: 405006 km    13  14:17  Venus 0.4°S of Moon: Occn.    15  04:46  Regulus 5.8°N of Moon    16  22:47  NEW MOON     19  07:05  Spica 0.2°N of Moon    21  06:24  Moon at Ascending Node     22  15:20  Antares 6.3°S of Moon    23  06:35  Mars 4.4°S of Moon    23  09:15  Autumnal Equinox     23  12:42  Jupiter 2.5°S of Moon    24  05:20  FIRST QUARTER MOON     24  05     Mercury at Superior Conjunction     27  11:09  Moon at Perigee: 366841 km    29  05     Mars 2.2°S of Jupiter    30  22:58  FULL MOON Oct 04  02:03  Moon at Descending Node     05  17:48  Aldebaran 3.6°S of Moon    06  18:25  Saturn 1.3°N of Moon    07  19     Neptune at Opposition     08  14:50  LAST QUARTER MOON     09  10:23  Moon at Apogee: 404365 km    09  14:13  Venus 2.1°S of Regulus    12  12:53  Regulus 5.9°N of Moon    12  17:45  Venus 4.0°N of Moon    16  12:21  NEW MOON     17  18:11  Mercury 0.2°S of Moon: Occn.    18  10:54  Moon at Ascending Node     21  00:53  Jupiter 3.0°S of Moon    21  17     Venus at Greatest Elong: 46.4°W    21  23:29  Mars 5.9°S of Moon    22  05     Orionid Meteor Shower    23  00:06  Moon at Perigee: 370022 km    23  11:36  FIRST QUARTER MOON     30  11:33  FULL MOON     30  11:45  Pen. Lunar Eclipse; mag=0.716    31  10:09  Moon at Descending Node Nov 02  02:35  Aldebaran 3.6°S of Moon    03  01:32  Saturn 1.3°N of Moon    06  05     S Taurid Meteor Shower    06  06:45  Moon at Apogee: 404522 km    07  11:02  LAST QUARTER MOON     09  14:11  Mercury 1.8°N of Antares    09  19     Mercury at Greatest Elong: 23.1°E    11  14:41  Venus 5.5°N of Moon    12  23:40  Spica 0.2°N of Moon    13  05     N Taurid Meteor Shower    14  19:32  Moon at Ascending Node     15  01:06  Hybrid Solar Eclipse; mag=1.011    15  01:10  NEW MOON     16  12     Mars at Perihelion:  1.38145 AU    16  14:48  Mercury 4.7°S of Moon    17  16:51  Jupiter 3.4°S of Moon    18  02:07  Moon at Perigee: 365930 km    18  11     Leonid Meteor Shower    21  18:45  FIRST QUARTER MOON     27  15     Venus at Perihelion     27  18:01  Moon at Descending Node     29  03:18  FULL MOON     29  05:24  Venus 3.9°N of Spica    29  10:36  Aldebaran 3.6°S of Moon    30  06:00  Saturn 1.1°N of Moon: Occn.    30  07     Mercury at Inferior Conjunction Dec 01  21     Mercury at Perihelion     04  02:35  Moon at Apogee: 405355 km    07  07:20  LAST QUARTER MOON     10  09:42  Spica 0.2°N of Moon    11  13:18  Venus 3.3°N of Moon    11  23     Saturn at Opposition     12  05:37  Moon at Ascending Node     13  02:17  Mercury 1.6°N of Moon    14  13:06  NEW MOON     15  00     Geminid Meteor Shower    16  01:31  Moon at Perigee: 360489 km    17  15     Uranus at Opposition     18  14     Mercury at Greatest Elong: 21.5°W    21  04:00  FIRST QUARTER MOON     22  05:56  Winter Solstice     23  09     Ursid Meteor Shower    23  10:32  Mercury 6.0°N of Antares    24  22:44  Moon at Descending Node     26  17:13  Aldebaran 3.6°S of Moon    27  08:28  Saturn 1.0°N of Moon: Occn.    28  21:33  FULL MOON     31  17:16  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