2018Calendar of Astronomical Events
2018Phases of the Moon
Alaska Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Alaska Standard Time(Greenwich Mean Time - 9 hours).If Daylight Saving Time is in effect, add one hour to the times listed.
| 2018 Phases of the Moon | |||
| Alaska Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 1 17:24 | Jan 8 13:25 |
| Jan 16 17:17 | Jan 24 13:20 | Jan 31 04:27 t | Feb 7 06:54 |
| Feb 15 12:05 P | Feb 22 23:09 | Mar 1 15:51 | Mar 9 02:20 |
| Mar 17 04:12 | Mar 24 06:35 | Mar 31 03:37 | Apr 7 22:18 |
| Apr 15 16:57 | Apr 22 12:46 | Apr 29 15:58 | May 7 17:09 |
| May 15 02:48 | May 21 18:49 | May 29 05:20 | Jun 6 09:32 |
| Jun 13 10:43 | Jun 20 01:51 | Jun 27 19:53 | Jul 5 22:51 |
| Jul 12 17:48 P | Jul 19 10:52 | Jul 27 11:20 t | Aug 4 09:18 |
| Aug 11 00:58 P | Aug 17 22:49 | Aug 26 02:56 | Sep 2 17:37 |
| Sep 9 09:01 | Sep 16 14:15 | Sep 24 17:53 | Oct 2 00:45 |
| Oct 8 18:47 | Oct 16 09:02 | Oct 24 07:45 | Oct 31 07:40 |
| Nov 7 07:02 | Nov 15 05:54 | Nov 22 20:39 | Nov 29 15:19 |
| Dec 6 22:20 | Dec 15 02:49 | Dec 22 08:49 | Dec 29 00:34 |
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.
2018Calendar of Astronomical Events
Alaska Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Alaska Standard Time(Greenwich Mean Time - 9 hours).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.
| 2018Calendar of Astronomical Events | ||||||||
| Alaska Standard Time | ||||||||
| January - June | July - December | |||||||
Date AKST Even (h:m)Jan 01 11 Mercury at Greatest Elong: 22.7°W 01 12:54 Moon at Perigee: 356566 km 01 17:24 FULL MOON 02 21 Earth at Perihelion: 0.98329 AU 03 10:50 Beehive 2.3°N of Moon 03 11 Quadrantid Meteor Shower 03 22:48 Moon at Ascending Node 04 22:24 Regulus 0.9°S of Moon 06 16 Mars 0.2°S of Jupiter 08 13:25 LAST QUARTER MOON 08 21 Venus at Superior Conjunction 10 20:59 Jupiter 4.3°S of Moon 11 01:03 Mars 4.6°S of Moon 12 23 Mercury 0.7°S of Saturn 14 17:10 Moon at Apogee: 406461 km 14 17:13 Saturn 2.6°S of Moon 14 22:24 Mercury 3.4°S of Moon 16 17:17 NEW MOON 18 05:28 Moon at Descending Node 23 08 Venus at Aphelion 24 13:20 FIRST QUARTER MOON 25 02 Mercury at Aphelion 27 01:09 Aldebaran 0.7°S of Moon 30 00:54 Moon at Perigee: 358995 km 30 22:19 Beehive 2.3°N of Moon 31 04:27 FULL MOON 31 04:30 Total Lunar Eclipse; mag=1.315 31 09:46 Moon at Ascending Node Feb 01 09:24 Regulus 0.9°S of Moon 07 06:54 LAST QUARTER MOON 07 10:47 Jupiter 4.3°S of Moon 08 20:12 Mars 4.4°S of Moon 11 05:16 Moon at Apogee: 405701 km 11 05:46 Saturn 2.5°S of Moon 11 07:40 Mars 5.0°N of Antares 14 12:11 Moon at Descending Node 15 11:51 Partial Solar Eclipse; mag=0.599 15 12:05 NEW MOON 17 03 Mercury at Superior Conjunction 22 23:09 FIRST QUARTER MOON 23 08:07 Aldebaran 0.7°S of Moon 27 05:48 Moon at Perigee: 363938 km 27 08:28 Beehive 2.3°N of Moon 27 20:03 Moon at Ascending Node 28 20:09 Regulus 0.9°S of MoonMar 01 15:51 FULL MOON 03 21 Mercury 1.1°N of Venus 04 05 Neptune in Conjunction with Sun 06 21:57 Jupiter 4.1°S of Moon 09 02:20 LAST QUARTER MOON 09 15:37 Mars 3.8°S of Moon 10 02 Mercury at Perihelion 10 17:37 Saturn 2.2°S of Moon 11 00:13 Moon at Apogee: 404682 km 13 18:47 Moon at Descending Node 15 06 Mercury at Greatest Elong: 18.4°E 17 04:12 NEW MOON 18 10:07 Venus 3.7°N of Moon 18 23 Mercury 3.8°N of Venus 20 07:15 Vernal Equinox 22 13:33 Aldebaran 0.9°S of Moon 24 06:35 FIRST QUARTER MOON 26 08:17 Moon at Perigee: 369104 km 26 15:52 Beehive 2.2°N of Moon 27 01:56 Moon at Ascending Node 28 04:38 Regulus 1.0°S of Moon 31 03:37 FULL MOON Apr 01 09 Mercury at Inferior Conjunction 02 10 Mars 1.3°S of Saturn 03 05:14 Jupiter 3.9°S of Moon 07 03:50 Saturn 1.9°S of Moon 07 09:15 Mars 3.1°S of Moon 07 20:32 Moon at Apogee: 404145 km 07 22:18 LAST QUARTER MOON 09 23:09 Moon at Descending Node 14 00:24 Mercury 3.9°N of Moon 15 16:57 NEW MOON 17 03 Saturn at Aphelion: 10.06564 AU 17 10:29 Venus 5.4°N of Moon 18 06 Uranus in Conjunction with Sun 18 19:45 Aldebaran 1.1°S of Moon 20 05:44 Moon at Perigee: 368713 km 22 09 Lyrid Meteor Shower 22 12:46 FIRST QUARTER MOON 22 21:17 Beehive 1.9°N of Moon 23 03:19 Moon at Ascending Node 24 07:47 Venus 3.4°S of Pleiades 24 10:39 Regulus 1.2°S of Moon 29 09 Mercury at Greatest Elong: 27.0°W 29 15:58 FULL MOON 30 08:16 Jupiter 3.8°S of MoonMay 02 04:29 Venus 6.3°N of Aldebaran 04 11:31 Saturn 1.7°S of Moon 04 22 Eta-Aquarid Meteor Shower 05 15:35 Moon at Apogee: 404458 km 05 22:24 Mars 2.7°S of Moon 07 01:23 Moon at Descending Node 07 17:09 LAST QUARTER MOON 08 15 Jupiter at Opposition 13 08:21 Mercury 2.4°N of Moon 15 02:48 NEW MOON 15 16 Venus at Perihelion 17 09:11 Venus 4.8°N of Moon 17 12:06 Moon at Perigee: 363777 km 20 02:57 Beehive 1.7°N of Moon 20 04:13 Moon at Ascending Node 21 15:53 Regulus 1.4°S of Moon 21 18:49 FIRST QUARTER MOON 27 08:39 Jupiter 4.0°S of Moon 29 05:20 FULL MOON 31 16:20 Saturn 1.6°S of MoonJun 02 07:34 Moon at Apogee: 405316 km 03 02:58 Mars 3.2°S of Moon 03 03:39 Moon at Descending Node 05 17 Mercury at Superior Conjunction 06 01 Mercury at Perihelion 06 09:32 LAST QUARTER MOON 07 18:37 Venus 4.6°S of Pollux 13 10:43 NEW MOON 14 14:55 Moon at Perigee: 359507 km 16 04:13 Venus 2.3°N of Moon 16 08:50 Moon at Ascending Node 16 10:38 Beehive 1.5°N of Moon 17 22:25 Regulus 1.7°S of Moon 19 17:21 Venus 0.4°N of Beehive 20 01:51 FIRST QUARTER MOON 21 01:07 Summer Solstice 23 09:47 Jupiter 4.2°S of Moon 24 12:37 Mercury 4.7°S of Pollux 27 03 Saturn at Opposition 27 18:59 Saturn 1.8°S of Moon 27 19:53 FULL MOON 29 17:43 Moon at Apogee: 406061 km 30 07:44 Moon at Descending Node 30 16:43 Mars 4.8°S of Moon | Date AKST Even (h:m)Jul 03 20:39 Mercury 0.6°S of Beehive 05 22:51 LAST QUARTER MOON 06 08 Earth at Aphelion: 1.01670 AU 09 14:34 Venus 0.9°N of Regulus 10 00:30 Aldebaran 1.1°S of Moon 11 20 Mercury at Greatest Elong: 26.4°E 12 17:48 NEW MOON 12 18:01 Partial Solar Eclipse; mag=0.337 12 23:28 Moon at Perigee: 357432 km 13 17:50 Moon at Ascending Node 14 13:04 Mercury 2.2°S of Moon 15 07:14 Regulus 1.7°S of Moon 15 18:31 Venus 1.6°S of Moon 19 10:52 FIRST QUARTER MOON 20 01 Mercury at Aphelion 20 14:57 Jupiter 4.4°S of Moon 24 07:49 Mercury 1.2°S of Regulus 24 21:10 Saturn 2.0°S of Moon 26 21 Mars at Opposition 26 20:44 Moon at Apogee: 406223 km 27 11:20 FULL MOON 27 11:22 Total Lunar Eclipse; mag=1.609 27 13:40 Moon at Descending Node 28 00 Delta-Aquarid Meteor ShowerAug 04 09:18 LAST QUARTER MOON 06 09:35 Aldebaran 1.1°S of Moon 08 17 Mercury at Inferior Conjunction 10 04:40 Moon at Ascending Node 10 09:05 Moon at Perigee: 358083 km 11 00:46 Partial Solar Eclipse; mag=0.737 11 00:58 NEW MOON 12 16 Perseid Meteor Shower 14 04:35 Venus 6.3°S of Moon 17 01:38 Jupiter 4.5°S of Moon 17 07 Venus at Greatest Elong: 45.9°E 17 22:49 FIRST QUARTER MOON 20 17:09 Mercury 4.8°S of Beehive 21 00:55 Saturn 2.1°S of Moon 23 02:23 Moon at Apogee: 405744 km 23 19:51 Moon at Descending Node 26 02:56 FULL MOON 26 11 Mercury at Greatest Elong: 18.3°W 31 19:45 Venus 1.0°S of SpicaSep 02 01 Mercury at Perihelion 02 16:34 Aldebaran 1.2°S of Moon 02 17:37 LAST QUARTER MOON 06 13:42 Moon at Ascending Node 06 17:13 Beehive 1.4°N of Moon 07 08 Neptune at Opposition 07 16:21 Moon at Perigee: 361355 km 09 09:01 NEW MOON 13 17:21 Jupiter 4.4°S of Moon 16 04 Mars at Perihelion: 1.38144 AU 16 14:15 FIRST QUARTER MOON 17 07:46 Saturn 2.1°S of Moon 19 15:54 Moon at Apogee: 404875 km 19 21:38 Mars 4.8°S of Moon 20 00:30 Moon at Descending Node 20 17 Mercury at Superior Conjunction 22 16:54 Autumnal Equinox 24 17:52 FULL MOON 29 22:06 Aldebaran 1.4°S of MoonOct 02 00:45 LAST QUARTER MOON 03 18:10 Moon at Ascending Node 04 00:51 Beehive 1.3°N of Moon 05 12:58 Regulus 1.8°S of Moon 05 13:29 Moon at Perigee: 366396 km 08 18:47 NEW MOON 11 12:21 Jupiter 4.1°S of Moon 14 18:01 Saturn 1.8°S of Moon 15 18 Mercury 6.2°N of Venus 16 09:02 FIRST QUARTER MOON 17 03:03 Moon at Descending Node 17 10:16 Moon at Apogee: 404227 km 18 04:01 Mars 1.9°S of Moon 21 08 Orionid Meteor Shower 23 16 Uranus at Opposition 24 07:45 FULL MOON 26 05 Venus at Inferior Conjunction 27 04:04 Aldebaran 1.6°S of Moon 28 21 Mercury 3.1°S of Jupiter 30 18:46 Moon at Ascending Node 31 06:24 Beehive 1.0°N of Moon 31 07:40 LAST QUARTER MOON 31 11:05 Moon at Perigee: 370201 kmNov 01 19:16 Regulus 2.1°S of Moon 05 09 S Taurid Meteor Shower 06 06 Mercury at Greatest Elong: 23.3°E 07 07:02 NEW MOON 08 19:58 Mercury 1.8°N of Antares 11 06:46 Saturn 1.4°S of Moon 12 08 N Taurid Meteor Shower 13 05:04 Moon at Descending Node 14 06:57 Moon at Apogee: 404341 km 14 14:14 Venus 0.2°S of Spica 15 05:54 FIRST QUARTER MOON 15 19:16 Mars 1.0°N of Moon: Occn. 17 14 Leonid Meteor Shower 22 20:39 FULL MOON 23 12:11 Aldebaran 1.7°S of Moon 25 21 Jupiter in Conjunction with Sun 26 03:10 Moon at Perigee: 366623 km 26 20:18 Moon at Ascending Node 27 00 Mercury at Inferior Conjunction 27 11:57 Beehive 0.8°N of Moon 29 00 Mercury at Perihelion 29 00:27 Regulus 2.3°S of Moon 29 15:19 LAST QUARTER MOON Dec 03 09:42 Venus 3.6°S of Moon 05 12:06 Mercury 1.9°S of Moon 06 22:20 NEW MOON 08 20:30 Saturn 1.1°S of Moon: Occn. 10 08:57 Moon at Descending Node 12 03:25 Moon at Apogee: 405177 km 14 03 Geminid Meteor Shower 14 14:21 Mars 3.6°N of Moon 15 02 Mercury at Greatest Elong: 21.3°W 15 02:49 FIRST QUARTER MOON 20 22:31 Aldebaran 1.7°S of Moon 21 11 Mercury 0.8°N of Jupiter 21 13:22 Winter Solstice 21 23:05 Mercury 5.8°N of Antares 22 06:03 Jupiter 5.1°N of Antares 22 08:49 FULL MOON 22 12 Ursid Meteor Shower 24 00:52 Moon at Perigee: 361060 km 24 02:54 Moon at Ascending Node 24 19:52 Beehive 0.6°N of Moon 26 07:06 Regulus 2.5°S of Moon 26 09 Venus at Perihelion 29 00:34 LAST QUARTER 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
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.