2021Calendar of Astronomical Events

    
2021Phases of the Moon
Central European Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Central European Time(Greenwich Mean Time + 1 hour).If Daylight Saving Time is in effect, add one hour to the times listed. 
   
      2021 Phases of the Moon   
      Central European Time
 New Moon  First Quarter  Full Moon  Last Quarter 
--- Jan  6  10:37   
 Jan 13  06:00    Jan 20  22:02    Jan 28  20:16    Feb  4  18:37   
 Feb 11  20:06    Feb 19  19:47    Feb 27  09:17    Mar  6  02:30   
 Mar 13  11:21    Mar 21  15:40    Mar 28  19:48    Apr  4  11:02   
 Apr 12  03:31    Apr 20  07:59    Apr 27  04:31    May  3  20:50   
 May 11  20:00    May 19  20:13    May 26  12:14 t  Jun  2  08:24   
 Jun 10  11:53 A  Jun 18  04:54    Jun 24  19:40    Jul  1  22:11   
 Jul 10  02:17    Jul 17  11:11    Jul 24  03:37    Jul 31  14:16   
 Aug  8  14:50    Aug 15  16:20    Aug 22  13:02    Aug 30  08:13   
 Sep  7  01:52    Sep 13  21:39    Sep 21  00:55    Sep 29  02:57   
 Oct  6  12:05    Oct 13  04:25    Oct 20  15:57    Oct 28  21:05   
 Nov  4  22:15    Nov 11  13:46    Nov 19  09:58 p  Nov 27  13:28   
 Dec  4  08:43 T  Dec 11  02:36    Dec 19  05:36    Dec 27  03:24   
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.
2021Calendar of Astronomical Events
Central European Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Central European Time(Greenwich Mean Time + 1 hour).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.
   
      2021Calendar of Astronomical Events   
   Central European Time  
 January - June   July - December 
Date     CET   Event        (h:m)Jan 01  08:05  Beehive 2.3°S of Moon    02  15     Earth at Perihelion: 0.98325 AU    02  22:58  Regulus 4.7°S of Moon    03  16     Quadrantid Meteor Shower    06  10:37  LAST QUARTER MOON     09  16:39  Moon at Perigee: 367390 km    10  03:08  Antares 5.6°S of Moon    10  06     Mercury 1.6°S of Saturn    10  21:14  Moon at Descending Node     11  19     Mercury 1.4°S of Jupiter    11  21:12  Venus 1.5°N of Moon    13  06:00  NEW MOON     14  09:15  Mercury 2.3°N of Moon    20  22:02  FIRST QUARTER MOON     21  06:37  Mars 5.1°N of Moon    21  14:11  Moon at Apogee: 404361 km    24  03     Mercury at Greatest Elong: 18.6°E    24  03     Saturn in Conjunction with Sun     24  05:39  Aldebaran 4.7°S of Moon    24  22:47  Moon at Ascending Node     27  16:46  Pollux 3.8°N of Moon    28  15:50  Beehive 2.3°S of Moon    28  20:16  FULL MOON     29  02     Jupiter in Conjunction with Sun     29  03     Mercury at Perihelion     30  05:56  Regulus 4.6°S of MoonFeb 03  20:33  Moon at Perigee: 370127 km    04  18:37  LAST QUARTER MOON     06  09     Venus 0.4°S of Saturn    06  09:33  Antares 5.5°S of Moon    07  01:29  Moon at Descending Node     08  15     Mercury at Inferior Conjunction     11  15     Venus 0.4°S of Jupiter    11  20:06  NEW MOON     13  10     Mercury 4.6°N of Venus    15  15     Mercury 3.8°N of Jupiter    18  11:22  Moon at Apogee: 404467 km    18  23:47  Mars 3.7°N of Moon    19  19:47  FIRST QUARTER MOON     20  06     Venus at Aphelion     20  14:15  Aldebaran 5.0°S of Moon    21  02:44  Moon at Ascending Node     23  09     Mercury 4.0°N of Saturn    24  02:10  Pollux 3.7°N of Moon    25  01:16  Beehive 2.4°S of Moon    26  15:04  Regulus 4.6°S of Moon    27  09:17  FULL MOON Mar 02  06:19  Moon at Perigee: 365422 km    04  00:36  Mars 2.6°S of Pleiades    05  06     Mercury 0.3°N of Jupiter    05  14:58  Antares 5.2°S of Moon    06  01:56  Moon at Descending Node     06  02:30  LAST QUARTER MOON     06  12     Mercury at Greatest Elong: 27.3°W    10  00:02  Saturn 3.7°N of Moon    10  16:35  Jupiter 4.0°N of Moon    11  01     Neptune in Conjunction with Sun     11  02:02  Mercury 3.7°N of Moon    13  11:21  NEW MOON     14  03     Mercury at Aphelion     18  06:04  Moon at Apogee: 405253 km    19  18:48  Mars 1.9°N of Moon    19  22:13  Aldebaran 5.2°S of Moon    20  04:31  Moon at Ascending Node     20  10:37  Vernal Equinox     20  20:15  Mars 6.9°N of Aldebaran    21  15:40  FIRST QUARTER MOON     23  11:26  Pollux 3.5°N of Moon    24  10:58  Beehive 2.6°S of Moon    26  01:17  Regulus 4.7°S of Moon    26  07     Venus at Superior Conjunction     28  19:48  FULL MOON     29  16:52  Spica 6.5°S of Moon    30  07:12  Moon at Perigee: 360311 kmApr 01  21:49  Antares 4.9°S of Moon    02  03:41  Moon at Descending Node     04  11:02  LAST QUARTER MOON     06  09:34  Saturn 4.0°N of Moon    07  08:15  Jupiter 4.4°N of Moon    12  03:31  NEW MOON     14  18:47  Moon at Apogee: 406120 km    16  05:07  Aldebaran 5.4°S of Moon    16  06:53  Moon at Ascending Node     17  13:09  Mars 0.1°N of Moon: Occn.    19  03     Mercury at Superior Conjunction     19  19:18  Pollux 3.2°N of Moon    20  07:59  FIRST QUARTER MOON     20  19:25  Beehive 2.8°S of Moon    22  10:48  Regulus 4.9°S of Moon    22  13     Lyrid Meteor Shower    26  03:43  Spica 6.5°S of Moon    27  02     Mercury at Perihelion     27  04:31  FULL MOON     27  16:24  Moon at Perigee: 357379 km    29  07:07  Antares 4.8°S of Moon    29  10:17  Moon at Descending Node     30  22     Uranus in Conjunction with Sun May 03  18:02  Saturn 4.2°N of Moon    03  20:50  LAST QUARTER MOON     04  04:03  Mercury 2.1°S of Pleiades    04  22:00  Jupiter 4.6°N of Moon    05  02     Eta-Aquarid Meteor Shower    11  20:00  NEW MOON     11  22:54  Moon at Apogee: 406512 km    13  11:29  Moon at Ascending Node     13  18:59  Mercury 2.1°N of Moon    16  05:47  Mars 1.5°S of Moon    17  01:39  Pollux 3.1°N of Moon    17  07     Mercury at Greatest Elong: 22.0°E    18  02:08  Beehive 2.9°S of Moon    19  18:28  Regulus 5.0°S of Moon    19  20:13  FIRST QUARTER MOON     23  14:07  Spica 6.5°S of Moon    26  02:52  Moon at Perigee: 357310 km    26  12:14  FULL MOON     26  12:19  Total Lunar Eclipse; mag=1.009    26  17:55  Antares 4.8°S of Moon    26  20:38  Moon at Descending Node     29  04     Mercury 0.4°S of Venus    31  02:22  Saturn 4.2°N of Moon    31  12:41  Mars 5.2°S of PolluxJun 01  09:57  Jupiter 4.6°N of Moon    02  08:24  LAST QUARTER MOON     08  03:27  Moon at Apogee: 406230 km    09  17:42  Moon at Ascending Node     10  11:42  Annular Solar Eclipse; mag=0.943    10  11:53  NEW MOON     11  02     Mercury at Inferior Conjunction     12  07:44  Venus 1.5°S of Moon    12  14     Venus at Perihelion     13  07:19  Pollux 3.1°N of Moon    13  20:52  Mars 2.8°S of Moon    14  07:47  Beehive 2.9°S of Moon    16  00:28  Regulus 5.0°S of Moon    18  04:54  FIRST QUARTER MOON     21  04:32  Summer Solstice     21  16:57  Venus 5.1°S of Pollux    22  21:36  Mercury 1.8°N of Aldebaran    23  04:26  Antares 4.8°S of Moon    23  06:21  Mars 0.3°S of Beehive    23  07:07  Moon at Descending Node     23  10:58  Moon at Perigee: 359960 km    24  19:40  FULL MOON     27  10:30  Saturn 4.0°N of Moon    28  19:38  Jupiter 4.5°N of Moon
Date     CET   Event        (h:m)Jul 01  22:11  LAST QUARTER MOON     03  03:45  Venus 0.1°N of Beehive    04  21     Mercury at Greatest Elong: 21.6°W    05  15:48  Moon at Apogee: 405342 km    06  00     Earth at Aphelion: 1.01673 AU    06  23:41  Moon at Ascending Node     06  23:52  Aldebaran 5.5°S of Moon    08  05:38  Mercury 3.7°S of Moon    10  02:17  NEW MOON     12  10:10  Venus 3.3°S of Moon    12  11:10  Mars 3.8°S of Moon    13  01     Mars at Aphelion:  1.66596 AU    13  06:02  Regulus 4.9°S of Moon    13  14     Venus 0.5°N of Mars    17  05:01  Spica 6.4°S of Moon    17  11:11  FIRST QUARTER MOON     20  13:06  Antares 4.7°S of Moon    20  14:22  Moon at Descending Node     21  11:30  Moon at Perigee: 364520 km    21  22:21  Venus 1.0°N of Regulus    24  02     Mercury at Perihelion     24  03:37  FULL MOON     24  17:42  Saturn 3.8°N of Moon    26  02:17  Jupiter 4.2°N of Moon    28  04     Delta-Aquarid Meteor Shower    29  15:09  Mars 0.6°N of Regulus    31  14:16  LAST QUARTER MOON Aug 01  15     Mercury at Superior Conjunction     02  06     Saturn at Opposition     02  08:35  Moon at Apogee: 404412 km    03  03:51  Moon at Ascending Node     03  07:18  Aldebaran 5.7°S of Moon    06  20:42  Pollux 3.1°N of Moon    08  14:50  NEW MOON     11  08:00  Venus 4.3°S of Moon    12  20     Perseid Meteor Shower    13  10:31  Spica 6.1°S of Moon    15  16:20  FIRST QUARTER MOON     16  17:04  Moon at Descending Node     16  19:34  Antares 4.5°S of Moon    17  10:23  Moon at Perigee: 369127 km    19  04     Mercury 0.1°S of Mars    20  00     Jupiter at Opposition     20  23:19  Saturn 3.7°N of Moon    22  05:52  Jupiter 4.0°N of Moon    22  13:02  FULL MOON     30  03:22  Moon at Apogee: 404100 km    30  06:13  Moon at Ascending Node     30  08:13  LAST QUARTER MOON Sep 03  05:04  Pollux 3.0°N of Moon    04  05:07  Beehive 2.9°S of Moon    05  15:32  Venus 1.4°N of Spica    06  01     Mercury at Aphelion     07  01:52  NEW MOON     09  17:01  Spica 5.9°S of Moon    10  03:09  Venus 4.1°S of Moon    11  11:05  Moon at Perigee: 368464 km    12  17:35  Moon at Descending Node     13  00:59  Antares 4.2°S of Moon    13  21:39  FIRST QUARTER MOON     14  05     Mercury at Greatest Elong: 26.8°E    14  09     Neptune at Opposition     17  03:37  Saturn 3.8°N of Moon    18  07:50  Jupiter 4.0°N of Moon    21  00:55  FULL MOON     21  03:00  Mercury 1.2°S of Spica    22  20:21  Autumnal Equinox     26  08:33  Moon at Ascending Node     26  22:44  Moon at Apogee: 404641 km    29  02:57  LAST QUARTER MOON     30  13:44  Pollux 2.8°N of MoonOct 01  14:07  Beehive 3.1°S of Moon    02  23     Venus at Aphelion     03  06:12  Regulus 4.9°S of Moon    06  12:05  NEW MOON     08  05     Mars in Conjunction with Sun     08  18:28  Moon at Perigee: 363388 km    09  17     Mercury at Inferior Conjunction     09  19:36  Venus 2.9°S of Moon    09  20:35  Moon at Descending Node     10  07:27  Antares 4.0°S of Moon    13  04:25  FIRST QUARTER MOON     14  08:12  Saturn 3.9°N of Moon    15  10:58  Jupiter 4.1°N of Moon    16  14:24  Venus 1.4°N of Antares    20  01     Mercury at Perihelion     20  15:57  FULL MOON     21  12     Orionid Meteor Shower    23  12:47  Moon at Ascending Node     24  16:30  Moon at Apogee: 405616 km    25  06     Mercury at Greatest Elong: 18.4°W    27  21:40  Pollux 2.6°N of Moon    28  21:05  LAST QUARTER MOON     28  22:32  Beehive 3.3°S of Moon    29  23     Venus at Greatest Elong: 47.0°E    30  15:33  Regulus 5.1°S of MoonNov 02  02:18  Mercury 3.7°N of Spica    03  19:40  Mercury 1.2°S of Moon: Occn.    04  22:15  NEW MOON     05  01     Uranus at Opposition     05  13     S Taurid Meteor Shower    05  23:23  Moon at Perigee: 358845 km    06  04:38  Moon at Descending Node     06  16:29  Antares 3.9°S of Moon    08  06:21  Venus 1.1°S of Moon: Occn.    10  15:27  Saturn 4.1°N of Moon    10  16     Mercury 1.0°N of Mars    11  13:46  FIRST QUARTER MOON     11  18:13  Jupiter 4.4°N of Moon    12  12     N Taurid Meteor Shower    17  19     Leonid Meteor Shower    19  09:58  FULL MOON     19  10:03  Partial Lunar Eclipse; mag=0.974    19  18:59  Moon at Ascending Node     21  03:14  Moon at Apogee: 406276 km    24  04:22  Pollux 2.5°N of Moon    25  05:32  Beehive 3.3°S of Moon    26  23:27  Regulus 5.2°S of Moon    27  13:28  LAST QUARTER MOON     29  06     Mercury at Superior Conjunction     30  23:04  Spica 5.9°S of MoonDec 03  15:58  Moon at Descending Node     04  08:33  Total Solar Eclipse; mag=1.037    04  08:43  NEW MOON     04  11:01  Moon at Perigee: 356794 km    07  01:48  Venus 1.9°N of Moon    08  02:52  Saturn 4.2°N of Moon    09  07:07  Jupiter 4.5°N of Moon    11  02:36  FIRST QUARTER MOON     14  08     Geminid Meteor Shower    17  01:12  Moon at Ascending Node     18  03:16  Moon at Apogee: 406322 km    19  05:36  FULL MOON     21  10:20  Pollux 2.6°N of Moon    21  16:59  Winter Solstice     22  11:28  Beehive 3.3°S of Moon    22  16     Ursid Meteor Shower    24  05:40  Regulus 5.1°S of Moon    27  03:24  LAST QUARTER MOON     27  10:15  Mars 4.4°N of Antares    28  07:58  Spica 5.8°S of Moon    29  06     Mercury 4.2°S of Venus    31  02:07  Moon at Descending Node     31  14:54  Antares 3.9°S of Moon    31  21:13  Mars 1.0°N of Moon: Occn.    

 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: 2021 to 2030
Europe, Africa, and the Middle East
Below are links to calendars of astronomical events from 2021 to 2030 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    2021     2022     2023     2024     2025     2026     2027     2028     2029     2030 
   CET    2021     2022     2023     2024     2025     2026     2027     2028     2029     2030 
   EET    2021     2022     2023     2024     2025     2026     2027     2028     2029     2030 
   MSK    2021     2022     2023     2024     2025     2026     2027     2028     2029     2030 
   GST    2021     2022     2023     2024     2025     2026     2027     2028     2029     2030 
        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: 

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