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