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