2011Calendar of Astronomical Events
2011Phases 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.
| 2011 Phases of the Moon | |||
| Greenwich Mean Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| Jan 4 09:03 P | Jan 12 11:31 | Jan 19 21:21 | Jan 26 12:57 |
| Feb 3 02:31 | Feb 11 07:18 | Feb 18 08:36 | Feb 24 23:26 |
| Mar 4 20:46 | Mar 12 23:45 | Mar 19 18:10 | Mar 26 12:07 |
| Apr 3 14:32 | Apr 11 12:05 | Apr 18 02:44 | Apr 25 02:47 |
| May 3 06:51 | May 10 20:33 | May 17 11:09 | May 24 18:52 |
| Jun 1 21:03 P | Jun 9 02:11 | Jun 15 20:13 t | Jun 23 11:48 |
| Jul 1 08:54 P | Jul 8 06:29 | Jul 15 06:40 | Jul 23 05:02 |
| Jul 30 18:40 | Aug 6 11:08 | Aug 13 18:58 | Aug 21 21:55 |
| Aug 29 03:04 | Sep 4 17:39 | Sep 12 09:27 | Sep 20 13:39 |
| Sep 27 11:09 | Oct 4 03:15 | Oct 12 02:06 | Oct 20 03:30 |
| Oct 26 19:56 | Nov 2 16:38 | Nov 10 20:16 | Nov 18 15:09 |
| Nov 25 06:10 P | Dec 2 09:52 | Dec 10 14:36 t | Dec 18 00:48 |
| Dec 24 18:06 | - | - | - |
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.
2011Calendar 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.
| 2011Calendar of Astronomical Events | ||||||||
| Greenwich Mean Time | ||||||||
| January - June | July - December | |||||||
Date GMT Event (h:m)Jan 01 18:07 Antares 2.5°S of Moon 02 14:32 Mercury 3.8°N of Moon 03 12:48 Moon at Ascending Node 03 19 Earth at Perihelion: 0.98334 AU 04 01 Quadrantid Meteor Shower 04 08:51 Partial Solar Eclipse; mag=0.858 04 09:03 NEW MOON 08 15 Venus at Greatest Elong: 47.0°W 09 14 Mercury at Greatest Elong: 23.3°W 10 05:38 Moon at Apogee: 404976 km 12 11:31 FIRST QUARTER MOON 15 12:39 Pleiades 1.3°N of Moon 18 00:06 Moon at Descending Node 19 21:21 FULL MOON 22 00:10 Moon at Perigee: 362793 km 22 01:55 Regulus 5.3°N of Moon 25 17:38 Spica 3.0°N of Moon 26 12:57 LAST QUARTER MOON 28 23:53 Antares 2.6°S of Moon 30 03:36 Venus 3.5°N of Moon 30 18:29 Moon at Ascending Node 31 09 Mercury at Aphelion Feb 01 18:14 Mercury 3.6°S of Moon 03 02:31 NEW MOON 04 17 Mars in Conjunction with Sun 06 23:13 Moon at Apogee: 405924 km 11 07:18 FIRST QUARTER MOON 11 21:32 Pleiades 1.4°N of Moon 14 08:14 Moon at Descending Node 17 09 Neptune in Conjunction with Sun 18 08:36 FULL MOON 18 12:18 Regulus 5.2°N of Moon 19 07:27 Moon at Perigee: 358247 km 22 01:02 Spica 2.8°N of Moon 24 23:26 LAST QUARTER MOON 25 05:26 Antares 2.8°S of Moon 25 08 Mercury at Superior Conjunction 26 20:19 Moon at Ascending Node Mar 01 03:40 Venus 1.6°S of Moon 04 20:46 NEW MOON 06 07:50 Moon at Apogee: 406584 km 09 14 Mars at Perihelion: 1.38138 AU 11 04:35 Pleiades 1.7°N of Moon 12 23:45 FIRST QUARTER MOON 13 11:55 Moon at Descending Node 15 20 Mercury 2.0°N of Jupiter 16 08 Mercury at Perihelion 17 17 Jupiter at Perihelion: 4.94839 AU 17 23:35 Regulus 5.3°N of Moon 19 18:10 FULL MOON 19 19:09 Moon at Perigee: 356578 km 20 23:21 Vernal Equinox 21 11:00 Spica 2.6°N of Moon 21 12 Uranus in Conjunction with Sun 23 01 Mercury at Greatest Elong: 18.6°E 24 12:48 Antares 3.0°S of Moon 25 21:09 Moon at Ascending Node 26 12:07 LAST QUARTER MOON Apr 02 09:00 Moon at Apogee: 406656 km 03 14:32 NEW MOON 03 23 Saturn at Opposition 06 15 Jupiter in Conjunction with Sun 07 10:19 Pleiades 1.9°N of Moon 09 12:48 Moon at Descending Node 09 19 Mercury at Inferior Conjunction 11 12:05 FIRST QUARTER MOON 14 09:34 Regulus 5.5°N of Moon 17 05:59 Moon at Perigee: 358088 km 17 22:04 Spica 2.5°N of Moon 18 02:44 FULL MOON 19 00 Venus at Aphelion 19 18 Mercury 0.6°N of Mars 20 22:21 Antares 3.2°S of Moon 22 01:05 Moon at Ascending Node 22 23 Lyrid Meteor Shower 25 02:47 LAST QUARTER MOON 29 18:02 Moon at Apogee: 406043 kmMay 01 04 Mars 0.4°N of Jupiter 03 06:51 NEW MOON 05 12 Eta-Aquarid Meteor Shower 06 14:54 Moon at Descending Node 07 19 Mercury at Greatest Elong: 26.6°W 08 05 Mercury 1.4°S of Venus 10 20:33 FIRST QUARTER MOON 11 15 Venus 0.6°S of Jupiter 11 17:05 Regulus 5.7°N of Moon 11 20 Mercury 2.1°S of Jupiter 15 08:08 Spica 2.6°N of Moon 15 11:18 Moon at Perigee: 362133 km 17 11:09 FULL MOON 18 07 Mercury 1.4°S of Venus 18 08:46 Antares 3.3°S of Moon 19 09:03 Moon at Ascending Node 21 08 Mercury 2.1°S of Mars 23 09 Venus 1.0°S of Mars 24 18:52 LAST QUARTER MOON 27 09:58 Moon at Apogee: 405006 km 29 14:31 Jupiter 5.7°S of Moon 30 20:04 Mars 3.8°S of Moon 31 04:00 Venus 4.4°S of MoonJun 01 21:03 NEW MOON 01 21:16 Partial Solar Eclipse; mag=0.601 02 20:21 Moon at Descending Node 07 22:45 Regulus 5.7°N of Moon 09 02:11 FIRST QUARTER MOON 09 14:50 Venus 5.0°S of Pleiades 11 15:57 Spica 2.6°N of Moon 12 01:42 Moon at Perigee: 367188 km 12 08 Mercury at Perihelion 12 23 Mercury at Superior Conjunction 14 18:17 Antares 3.3°S of Moon 15 18:35 Moon at Ascending Node 15 20:13 Total Lunar Eclipse; mag=1.700 15 20:13 FULL MOON 17 12:15 Venus 4.6°N of Aldebaran 21 01:24 Mars 4.2°S of Pleiades 21 17:16 Summer Solstice 23 11:48 LAST QUARTER MOON 24 04:13 Moon at Apogee: 404275 km 26 08:45 Jupiter 5.4°S of Moon 28 06:52 Pleiades 2.0°N of Moon 28 07:40 Mercury 4.7°S of Pollux 28 18:59 Mars 1.7°S of Moon 30 04:14 Moon at Descending Node | Date GMT Event (h:m)Jul 01 08:38 Partial Solar Eclipse; mag=0.097 01 08:54 NEW MOON 03 02:11 Mercury 5.1°N of Moon 04 15 Earth at Aphelion: 1.01674 AU 04 19:18 Mars 5.4°N of Aldebaran 05 04:23 Regulus 5.7°N of Moon 06 17:36 Mercury 0.2°S of Beehive 07 14:04 Moon at Perigee: 369566 km 08 06:29 FIRST QUARTER MOON 08 21:44 Spica 2.6°N of Moon 12 01:48 Antares 3.3°S of Moon 13 02:27 Moon at Ascending Node 15 06:40 FULL MOON 20 05 Mercury at Greatest Elong: 26.8°E 21 22:46 Moon at Apogee: 404358 km 23 05:02 LAST QUARTER MOON 24 00:34 Jupiter 5.1°S of Moon 25 15:28 Pleiades 2.1°N of Moon 26 07 Mercury at Aphelion 26 12:51 Mercury 2.1°S of Regulus 27 12:03 Moon at Descending Node 27 16:52 Mars 0.5°N of Moon: Occn. 28 14 Delta-Aquarid Meteor Shower 30 18:40 NEW MOON Aug 01 11:20 Mercury 1.5°N of Moon 01 11:41 Regulus 5.6°N of Moon 02 20:59 Moon at Perigee: 365756 km 05 03:08 Spica 2.4°N of Moon 06 11:08 FIRST QUARTER MOON 08 07:32 Antares 3.5°S of Moon 09 06:35 Moon at Ascending Node 09 08 Venus at Perihelion 13 06 Perseid Meteor Shower 13 18:58 FULL MOON 16 12 Venus at Superior Conjunction 17 01 Mercury at Inferior Conjunction 18 16:23 Moon at Apogee: 405161 km 20 12:13 Jupiter 4.8°S of Moon 21 21:55 LAST QUARTER MOON 21 23:40 Pleiades 2.3°N of Moon 22 22 Neptune at Opposition 23 17:23 Moon at Descending Node 25 13:36 Mars 2.7°N of Moon 28 01:07 Mercury 2.6°N of Moon 29 03:04 NEW MOON 30 17:35 Moon at Perigee: 360858 kmSep 01 10:06 Spica 2.2°N of Moon 03 06 Mercury at Greatest Elong: 18.1°W 04 13:00 Antares 3.7°S of Moon 04 17:39 FIRST QUARTER MOON 05 07:36 Moon at Ascending Node 08 07 Mercury at Perihelion 08 08:45 Mars 5.8°S of Pollux 09 02:18 Mercury 0.6°N of Regulus 12 09:27 FULL MOON 15 06:23 Moon at Apogee: 406068 km 16 18:20 Jupiter 4.7°S of Moon 18 06:46 Pleiades 2.5°N of Moon 19 19:38 Moon at Descending Node 20 13:39 LAST QUARTER MOON 23 08:23 Mars 4.8°N of Moon 23 09:05 Autumnal Equinox 25 07:49 Regulus 5.7°N of Moon 26 00 Uranus at Opposition 27 11:09 NEW MOON 28 01:01 Moon at Perigee: 357556 km 28 20 Mercury at Superior Conjunction 30 03 Venus 1.3°S of SaturnOct 01 00:53 Mars 0.4°S of Beehive 01 20:04 Antares 3.9°S of Moon 02 09:09 Moon at Ascending Node 04 03:15 FIRST QUARTER MOON 12 02:06 FULL MOON 12 11:43 Moon at Apogee: 406435 km 13 19:28 Jupiter 4.8°S of Moon 13 21 Saturn in Conjunction with Sun 15 12:49 Pleiades 2.7°N of Moon 16 21:01 Moon at Descending Node 20 03:30 LAST QUARTER MOON 21 22 Orionid Meteor Shower 22 17:52 Regulus 5.8°N of Moon 26 12:26 Moon at Perigee: 357051 km 26 19:56 NEW MOON 28 02:14 Mercury 0.2°N of Moon: Occn. 28 05:11 Venus 1.8°N of Moon 29 01 Jupiter at Opposition 29 05:37 Antares 4.1°S of Moon 29 14:59 Moon at Ascending Node Nov 01 20 Mercury 2.0°S of Venus 02 16:38 FIRST QUARTER MOON 05 22 S Taurid Meteor Shower 08 13:20 Moon at Apogee: 406177 km 09 18:40 Jupiter 5.0°S of Moon 10 07:51 Venus 3.8°N of Antares 10 08:27 Mercury 1.9°N of Antares 10 18:21 Mars 1.3°N of Regulus 10 20:16 FULL MOON 11 11:32 Saturn 4.0°N of Spica 11 18:43 Pleiades 2.8°N of Moon 12 17:18 Aldebaran 5.9°S of Moon 12 22 N Taurid Meteor Shower 13 00:35 Moon at Descending Node 13 08 Mercury 2.0°S of Venus 14 09 Mercury at Greatest Elong: 22.7°E 18 04 Leonid Meteor Shower 18 15:09 LAST QUARTER MOON 19 01:42 Regulus 6.0°N of Moon 22 17:21 Spica 2.1°N of Moon 23 23:24 Moon at Perigee: 359692 km 25 06:10 NEW MOON 25 06:20 Partial Solar Eclipse; mag=0.905 26 01:02 Moon at Ascending Node 26 09:48 Mercury 1.7°S of Moon 27 04:29 Venus 2.8°S of MoonDec 02 09:52 FIRST QUARTER MOON 04 09 Mercury at Inferior Conjunction 05 06 Mercury at Perihelion 06 01:13 Moon at Apogee: 405414 km 06 20:10 Jupiter 5.2°S of Moon 09 01:26 Pleiades 2.8°N of Moon 09 23:51 Aldebaran 5.9°S of Moon 10 07:04 Moon at Descending Node 10 14:32 Total Lunar Eclipse; mag=1.106 10 14:36 FULL MOON 14 17 Geminid Meteor Shower 16 07:26 Regulus 6.0°N of Moon 18 00:48 LAST QUARTER MOON 20 01:37 Spica 2.1°N of Moon 22 02:56 Moon at Perigee: 364801 km 22 05:30 Winter Solstice 23 02 Ursid Meteor Shower 23 03 Mercury at Greatest Elong: 21.8°W 23 03:05 Antares 4.1°S of Moon 23 03:50 Mercury 2.6°N of Moon 23 11:36 Moon at Ascending Node 24 10:36 Mercury 6.3°N of Antares 24 18:06 NEW MOON | |||||||
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: 2011 to 2020
Europe, Africa, and the Middle East
Below are links to calendars of astronomical events from 2011 to 2020 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 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| CET | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| EET | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| MSK | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| GST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
- 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.