2013Calendar of Astronomical Events
2013Phases of the Moon
Atlantic Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Atlantic Standard Time(Greenwich Mean Time - 4 hours).If Daylight Saving Time is in effect, add one hour to the times listed.
| 2013 Phases of the Moon | |||
| Atlantic Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | - | Jan 4 23:58 |
| Jan 11 15:44 | Jan 18 19:45 | Jan 27 00:38 | Feb 3 09:56 |
| Feb 10 03:20 | Feb 17 16:31 | Feb 25 16:26 | Mar 4 17:53 |
| Mar 11 15:51 | Mar 19 13:27 | Mar 27 05:27 | Apr 3 00:37 |
| Apr 10 05:35 | Apr 18 08:31 | Apr 25 15:57 p | May 2 07:14 |
| May 9 20:29 A | May 18 00:35 | May 25 00:25 n | May 31 14:58 |
| Jun 8 11:56 | Jun 16 13:24 | Jun 23 07:32 | Jun 30 00:54 |
| Jul 8 03:14 | Jul 15 23:18 | Jul 22 14:15 | Jul 29 13:43 |
| Aug 6 17:51 | Aug 14 06:56 | Aug 20 21:45 | Aug 28 05:35 |
| Sep 5 07:36 | Sep 12 13:08 | Sep 19 07:13 | Sep 26 23:56 |
| Oct 4 20:35 | Oct 11 19:02 | Oct 18 19:38 n | Oct 26 19:41 |
| Nov 3 08:50 H | Nov 10 01:57 | Nov 17 11:16 | Nov 25 15:28 |
| Dec 2 20:22 | Dec 9 11:12 | Dec 17 05:28 | Dec 25 09:48 |
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.
2013Calendar of Astronomical Events
Atlantic Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Atlantic 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.
| 2013Calendar of Astronomical Events | ||||||||
| Atlantic Standard Time | ||||||||
| January - June | July - December | |||||||
Date AST Event (h:m)Jan 01 17:13 Regulus 5.9°N of Moon 02 01 Earth at Perihelion: 0.98329 AU 03 10 Quadrantid Meteor Shower 03 23 Mercury at Aphelion 04 23:58 LAST QUARTER MOON 05 15:54 Spica 0.6°N of Moon 06 21:28 Saturn 3.7°N of Moon 07 19:50 Moon at Ascending Node 08 18:55 Antares 5.9°S of Moon 10 06:26 Moon at Perigee: 360048 km 10 07:36 Venus 2.8°S of Moon 11 15:44 NEW MOON 18 05 Mercury at Superior Conjunction 18 19:45 FIRST QUARTER MOON 20 21:19 Moon at Descending Node 21 22:57 Jupiter 0.5°N of Moon: Occn. 22 06:52 Moon at Apogee: 405313 km 22 07:13 Aldebaran 4.0°S of Moon 24 05 Mars at Perihelion: 1.38149 AU 27 00:38 FULL MOON 28 22:57 Regulus 5.8°N of MoonFeb 01 21:25 Spica 0.3°N of Moon 03 05:55 Saturn 3.5°N of Moon 03 09:56 LAST QUARTER MOON 03 22:14 Moon at Ascending Node 05 02:39 Antares 6.1°S of Moon 07 08:09 Moon at Perigee: 365314 km 08 12 Mercury 0.3°N of Mars 10 03:20 NEW MOON 11 13:51 Mercury 5.2°S of Moon 16 17 Mercury at Greatest Elong: 18.1°E 16 22 Mercury at Perihelion 16 22:57 Moon at Descending Node 17 16:31 FIRST QUARTER MOON 18 07:31 Jupiter 0.9°N of Moon: Occn. 18 14:49 Aldebaran 3.8°S of Moon 19 02:30 Moon at Apogee: 404475 km 20 22 Venus at Aphelion 21 03 Neptune in Conjunction with Sun 25 06:18 Regulus 5.7°N of Moon 25 16:26 FULL MOON 25 18 Mercury 4.1°N of MarsMar 01 02:56 Spica 0.1°N of Moon 02 11:21 Saturn 3.3°N of Moon 02 22:30 Moon at Ascending Node 04 08:11 Antares 6.4°S of Moon 04 09 Mercury at Inferior Conjunction 04 17:53 LAST QUARTER MOON 05 19:20 Moon at Perigee: 369954 km 11 15:51 NEW MOON 16 02:15 Moon at Descending Node 17 21:16 Jupiter 1.5°N of Moon 17 21:24 Jupiter 5.0°N of Aldebaran 17 22:56 Aldebaran 3.5°S of Moon 18 23:13 Moon at Apogee: 404262 km 19 13:27 FIRST QUARTER MOON 20 07:02 Vernal Equinox 24 15:17 Regulus 5.8°N of Moon 27 05:27 FULL MOON 28 10:29 Spica 0.0°N of Moon 28 13 Venus at Superior Conjunction 28 20 Uranus in Conjunction with Sun 29 16:18 Saturn 3.3°N of Moon 30 01:55 Moon at Ascending Node 30 23:55 Moon at Perigee: 367494 km 31 18 Mercury at Greatest Elong: 27.8°WApr 03 00:37 LAST QUARTER MOON 10 05:35 NEW MOON 12 08:12 Moon at Descending Node 14 06:51 Aldebaran 3.4°S of Moon 14 14:23 Jupiter 2.1°N of Moon 15 18:21 Moon at Apogee: 404865 km 17 20 Mars in Conjunction with Sun 18 08:31 FIRST QUARTER MOON 21 00:44 Regulus 5.9°N of Moon 22 07 Lyrid Meteor Shower 24 20:10 Spica 0.0°N of Moon 25 15:57 FULL MOON 25 16:07 Partial Lunar Eclipse; mag=0.015 25 22:28 Saturn 3.5°N of Moon 26 10:07 Moon at Ascending Node 27 15:48 Moon at Perigee: 362268 km 28 04 Saturn at Opposition May 02 07:14 LAST QUARTER MOON 04 20 Eta-Aquarid Meteor Shower 09 15:12 Moon at Descending Node 09 20:25 Annular Solar Eclipse; mag=0.954 09 20:29 NEW MOON 11 17 Mercury at Superior Conjunction 12 09:03 Jupiter 2.6°N of Moon 13 09:31 Moon at Apogee: 405827 km 15 22 Mercury at Perihelion 18 00:35 FIRST QUARTER MOON 18 09:14 Regulus 5.9°N of Moon 22 06:35 Spica 0.0°N of Moon 23 05:55 Saturn 3.7°N of Moon 23 20:40 Moon at Ascending Node 24 17 Mercury 1.4°N of Venus 25 00:10 Pen. Lunar Eclipse; mag=0.016 25 00:25 FULL MOON 25 07:45 Antares 6.6°S of Moon 25 21:45 Moon at Perigee: 358375 km 27 02 Mercury 2.4°N of Jupiter 28 13 Venus 1.0°N of Jupiter 31 14:58 LAST QUARTER MOON Jun 05 20:59 Moon at Descending Node 08 11:56 NEW MOON 09 17:40 Moon at Apogee: 406487 km 10 07:19 Venus 5.3°N of Moon 12 13 Mercury at Greatest Elong: 24.3°E 13 07 Venus at Perihelion 14 16:06 Regulus 5.8°N of Moon 16 13:24 FIRST QUARTER MOON 18 08:57 Mercury 6.1°S of Pollux 18 15:56 Spica 0.1°S of Moon 19 11 Jupiter in Conjunction with Sun 19 13:45 Saturn 3.6°N of Moon 20 03 Mercury 1.9°S of Venus 20 05:51 Moon at Ascending Node 21 01:04 Summer Solstice 22 00:49 Venus 5.1°S of Pollux 23 07:09 Moon at Perigee: 356990 km 23 07:32 FULL MOON 28 21 Mercury at Aphelion 30 00:54 LAST QUARTER MOON | Date AST Event (h:m)Jul 03 00:15 Moon at Descending Node 03 11:26 Venus 0.1°N of Beehive 05 02:09 Aldebaran 3.4°S of Moon 05 11 Earth at Aphelion: 1.01671 AU 06 20:36 Moon at Apogee: 406493 km 08 03:14 NEW MOON 09 15 Mercury at Inferior Conjunction 11 21:45 Regulus 5.7°N of Moon 15 23:13 Spica 0.3°S of Moon 15 23:18 FIRST QUARTER MOON 16 21:19 Saturn 3.3°N of Moon 17 10:58 Moon at Ascending Node 21 16:27 Moon at Perigee: 358402 km 22 01 Mars 0.8°N of Jupiter 22 05:30 Venus 1.0°N of Regulus 22 14:15 FULL MOON 27 22 Delta-Aquarid Meteor Shower 28 15 Mercury 6.9°S of Mars 29 13:43 LAST QUARTER MOON 30 01:50 Moon at Descending Node 30 05 Mercury at Greatest Elong: 19.6°WAug 01 08:22 Aldebaran 3.2°S of Moon 03 04:53 Moon at Apogee: 405834 km 03 18:22 Jupiter 4.0°N of Moon 04 18:31 Mercury 7.3°S of Pollux 05 04:39 Mercury 4.4°N of Moon 06 17:51 NEW MOON 09 22:19 Venus 5.1°N of Moon 11 21 Mercury at Perihelion 12 04:46 Spica 0.6°S of Moon 12 14 Perseid Meteor Shower 13 04:51 Saturn 2.8°N of Moon 13 12:20 Moon at Ascending Node 14 06:56 FIRST QUARTER MOON 17 13:03 Mars 5.8°S of Pollux 18 21:26 Moon at Perigee: 362265 km 20 21:45 FULL MOON 24 17 Mercury at Superior Conjunction 26 04:19 Moon at Descending Node 26 20 Neptune at Opposition 28 05:35 LAST QUARTER MOON 28 15:32 Aldebaran 2.9°S of Moon 30 19:46 Moon at Apogee: 404883 km 31 12:38 Jupiter 4.5°N of MoonSep 05 07:36 NEW MOON 05 20:37 Venus 1.5°N of Spica 08 06:00 Mars 0.5°S of Beehive 08 10:11 Spica 0.8°S of Moon 08 17:04 Venus 0.4°N of Moon: Occn. 09 13:29 Moon at Ascending Node 09 13:29 Saturn 2.3°N of Moon 12 13:08 FIRST QUARTER MOON 15 12:34 Moon at Perigee: 367388 km 18 16 Venus 3.5°S of Saturn 19 07:13 FULL MOON 22 09:48 Moon at Descending Node 22 16:44 Autumnal Equinox 24 18:29 Mercury 0.7°N of Spica 24 23:39 Aldebaran 2.7°S of Moon 26 23:56 LAST QUARTER MOON 27 14:17 Moon at Apogee: 404309 km 28 05:05 Jupiter 4.9°N of MoonOct 01 18:19 Regulus 5.6°N of Moon 03 09 Uranus at Opposition 03 15 Venus at Aphelion 04 20:35 NEW MOON 06 18:08 Moon at Ascending Node 06 18:28 Mercury 2.8°S of Moon 07 00:30 Saturn 1.9°N of Moon 08 08:07 Venus 4.7°S of Moon 08 09 Mercury 5.0°S of Saturn 09 06 Mercury at Greatest Elong: 25.3°E 10 19:06 Moon at Perigee: 369813 km 11 19:02 FIRST QUARTER MOON 14 23:51 Mars 0.9°N of Regulus 16 14:26 Venus 1.5°N of Antares 18 19:38 FULL MOON 18 19:50 Pen. Lunar Eclipse; mag=0.765 19 17:47 Moon at Descending Node 21 06 Orionid Meteor Shower 22 08:06 Aldebaran 2.7°S of Moon 25 10:25 Moon at Apogee: 404561 km 25 17:55 Jupiter 5.1°N of Moon 26 19:41 LAST QUARTER MOON 29 03:17 Regulus 5.7°N of MoonNov 01 05 Venus at Greatest Elong: 47.1°E 01 16 Mercury at Inferior Conjunction 03 02:52 Moon at Ascending Node 03 08:46 Hybrid Solar Eclipse; mag=1.016 03 08:50 NEW MOON 05 07 S Taurid Meteor Shower 06 05:28 Moon at Perigee: 365362 km 06 07 Saturn in Conjunction with Sun 07 20 Mercury at Perihelion 08 11:08 Jupiter 6.1°S of Pollux 10 01:57 FIRST QUARTER MOON 12 06 N Taurid Meteor Shower 16 01:30 Moon at Descending Node 17 11:16 FULL MOON 17 12 Leonid Meteor Shower 17 22 Mercury at Greatest Elong: 19.5°W 18 16:00 Aldebaran 2.7°S of Moon 22 01:21 Jupiter 5.1°N of Moon 22 05:50 Moon at Apogee: 405446 km 25 11:45 Regulus 5.6°N of Moon 25 15:28 LAST QUARTER MOON 26 01 Mercury 0.3°S of Saturn 27 12:10 Mars 5.7°N of Moon 29 12:43 Spica 0.9°S of Moon 30 12:59 Moon at Ascending Node Dec 01 06:13 Saturn 1.2°N of Moon: Occn. 02 20:22 NEW MOON 04 06:15 Moon at Perigee: 360065 km 09 11:12 FIRST QUARTER MOON 13 06:10 Moon at Descending Node 14 01 Geminid Meteor Shower 15 22:45 Aldebaran 2.7°S of Moon 17 05:28 FULL MOON 19 03:11 Jupiter 5.0°N of Moon 19 19:49 Moon at Apogee: 406269 km 21 13:11 Winter Solstice 21 20 Mercury at Aphelion 22 10 Ursid Meteor Shower 22 18:47 Regulus 5.4°N of Moon 25 09:48 LAST QUARTER MOON 25 22:45 Mars 4.6°N of Moon 26 22:10 Spica 1.0°S of Moon 27 20:21 Moon at Ascending Node 28 21:42 Saturn 0.9°N of Moon: Occn. 29 02 Mercury at Superior Conjunction | |||||||
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
The Americas
Below are links to calendars of astronomical events from 2011 to 2020 for seven time zones in the Americas.
Choose a time zone and click on a year to get a calendar of astronomical events for that year.
| Calendars of Astronomical Events - The Americas | |||||||||||||||
| AST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| EST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| CST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| MST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| PST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AKST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| HST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
- AST = Atlantic Standard Time (= GMT - 4 hours)
- EST = Eastern Standard Time (= GMT - 5 hours)
- CST = Central Standard Time (= GMT - 6 hours)
- MST = Mountain Standard Time (= GMT - 7 hours)
- PST = Pacific Standard Time (= GMT - 8 hours)
- AKST = Alaskan Standard Time (= GMT - 9 hours)
- HST = Hawaiian Standard Time (= GMT - 10 hours)
(where GMT = Greenwich Mean Time)
- 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.