2023Calendar of Astronomical Events
2023Phases 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.
| 2023 Phases of the Moon | |||
| Alaska Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 6 14:08 | Jan 14 17:10 |
| Jan 21 11:53 | Jan 28 06:19 | Feb 5 09:29 | Feb 13 07:01 |
| Feb 19 22:06 | Feb 26 23:06 | Mar 7 03:40 | Mar 14 17:08 |
| Mar 21 08:23 | Mar 28 17:32 | Apr 5 19:35 | Apr 13 00:11 |
| Apr 19 19:12 H | Apr 27 12:20 | May 5 08:34 n | May 12 05:28 |
| May 19 06:53 | May 27 06:22 | Jun 3 18:42 | Jun 10 10:31 |
| Jun 17 19:37 | Jun 25 22:50 | Jul 3 02:39 | Jul 9 16:48 |
| Jul 17 09:32 | Jul 25 13:07 | Aug 1 09:31 | Aug 8 01:28 |
| Aug 16 00:38 | Aug 24 00:57 | Aug 30 16:35 | Sep 6 13:21 |
| Sep 14 16:40 | Sep 22 10:32 | Sep 29 00:57 | Oct 6 04:48 |
| Oct 14 08:55 A | Oct 21 18:29 | Oct 28 11:24 p | Nov 4 23:37 |
| Nov 13 00:27 | Nov 20 01:50 | Nov 27 00:16 | Dec 4 20:49 |
| Dec 12 14:32 | Dec 19 09:39 | Dec 26 15:33 | - |
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.
2023Calendar 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.
| 2023Calendar of Astronomical Events | ||||||||
| Alaska Standard Time | ||||||||
| January - June | July - December | |||||||
Date AKST Even (h:m)Jan 01 06:25 Moon at Ascending Node 02 11 Mercury at Perihelion 02 16:24 Pleiades 2.6°N of Moon 03 10:35 Mars 0.5°N of Moon: Occn. 03 18 Quadrantid Meteor Shower 04 07 Earth at Perihelion: 0.98329 AU 06 14:08 FULL MOON 07 04 Mercury at Inferior Conjunction 07 04:40 Pollux 1.9°N of Moon 08 00:19 Moon at Apogee: 406459 km 08 06:23 Beehive 3.6°S of Moon 10 02:38 Regulus 4.6°S of Moon 14 12:59 Spica 3.9°S of Moon 14 17:10 LAST QUARTER MOON 15 21:32 Moon at Descending Node 18 00:32 Antares 2.1°S of Moon 20 03 Jupiter at Perihelion: 4.95101 AU 21 11:53 NEW MOON 21 11:58 Moon at Perigee: 356570 km 22 13 Venus 0.3°S of Saturn 22 22:22 Saturn 3.8°N of Moon 22 23:20 Venus 3.5°N of Moon 25 17:00 Jupiter 1.8°N of Moon 28 06:19 FIRST QUARTER MOON 28 07:05 Moon at Ascending Node 29 21 Mercury at Greatest Elong: 25.0°W 29 22:21 Pleiades 2.4°N of Moon 30 19:24 Mars 0.1°N of Moon: Occn.Feb 03 10:47 Pollux 1.9°N of Moon 03 23:55 Moon at Apogee: 406476 km 04 12:32 Beehive 3.5°S of Moon 05 09:29 FULL MOON 06 08:44 Regulus 4.5°S of Moon 10 19:23 Spica 3.6°S of Moon 11 22:31 Moon at Descending Node 13 07:01 LAST QUARTER MOON 14 09:09 Antares 1.9°S of Moon 15 11 Mercury at Aphelion 16 07 Saturn in Conjunction with Sun 18 11:53 Mercury 3.6°N of Moon 19 00:06 Moon at Perigee: 358267 km 19 22:06 NEW MOON 21 22:57 Venus 2.1°N of Moon 22 12:58 Jupiter 1.2°N of Moon: Occn. 24 09:56 Moon at Ascending Node 26 05:42 Pleiades 2.1°N of Moon 26 23:06 FIRST QUARTER MOON 27 19:32 Mars 1.1°S of Moon: Occn.Mar 01 19 Venus 0.5°N of Jupiter 02 05 Mercury 0.9°S of Saturn 02 17:10 Pollux 1.7°N of Moon 03 09:01 Moon at Apogee: 405890 km 03 18:56 Beehive 3.6°S of Moon 05 15:08 Regulus 4.5°S of Moon 07 03:40 FULL MOON 10 01:06 Spica 3.4°S of Moon 10 23:53 Moon at Descending Node 13 15:21 Antares 1.6°S of Moon 14 17:08 LAST QUARTER MOON 15 14 Neptune in Conjunction with Sun 17 02 Mercury at Superior Conjunction 19 06:16 Moon at Perigee: 362698 km 19 06:20 Saturn 3.6°N of Moon 20 12:25 Vernal Equinox 21 08:23 NEW MOON 23 17:08 Moon at Ascending Node 24 01:28 Venus 0.1°N of Moon: Occn. 25 14:42 Pleiades 1.9°N of Moon 27 19 Mercury 1.3°N of Jupiter 28 04:16 Mars 2.3°S of Moon 28 17:32 FIRST QUARTER MOON 30 00:23 Pollux 1.6°N of Moon 31 02:07 Beehive 3.8°S of Moon 31 02:18 Moon at Apogee: 404921 km 31 11 Mercury at Perihelion Apr 01 22:22 Regulus 4.6°S of Moon 05 19:35 FULL MOON 06 07:45 Spica 3.3°S of Moon 07 04:51 Moon at Descending Node 09 20:50 Antares 1.5°S of Moon 10 19:42 Venus 2.5°S of Pleiades 11 12 Jupiter in Conjunction with Sun 11 13 Mercury at Greatest Elong: 19.5°E 13 00:11 LAST QUARTER MOON 15 17:22 Moon at Perigee: 367967 km 15 18:47 Saturn 3.5°N of Moon 17 07 Venus at Perihelion 19 00:08 Venus 7.3°N of Aldebaran 19 19:12 NEW MOON 19 19:17 Hybrid Solar Eclipse; mag=1.013 20 02:32 Moon at Ascending Node 22 00:14 Pleiades 1.9°N of Moon 22 16 Lyrid Meteor Shower 23 04:03 Venus 1.3°S of Moon 25 17:18 Mars 3.2°S of Moon 26 08:26 Pollux 1.5°N of Moon 27 10:02 Beehive 3.8°S of Moon 27 12:20 FIRST QUARTER MOON 27 21:43 Moon at Apogee: 404300 km 29 06:21 Regulus 4.7°S of MoonMay 01 14 Mercury at Inferior Conjunction 03 15:55 Spica 3.3°S of Moon 04 12:57 Moon at Descending Node 05 05 Eta-Aquarid Meteor Shower 05 08:23 Pen. Lunar Eclipse; mag=0.964 05 08:34 FULL MOON 07 03:35 Antares 1.5°S of Moon 08 02:27 Mars 4.9°S of Pollux 09 12 Uranus in Conjunction with Sun 10 19:57 Moon at Perigee: 369345 km 12 05:28 LAST QUARTER MOON 13 04:04 Saturn 3.3°N of Moon 17 04 Mercury 6.2°N of Jupiter 17 04:15 Jupiter 0.8°S of Moon: Occn. 17 10:36 Moon at Ascending Node 17 16:34 Mercury 3.6°S of Moon 19 06:53 NEW MOON 23 03:08 Venus 2.2°S of Moon 23 16:37 Pollux 1.6°N of Moon 24 08:32 Mars 3.8°S of Moon 24 18:06 Beehive 3.8°S of Moon 25 16:39 Moon at Apogee: 404510 km 26 14:30 Regulus 4.6°S of Moon 27 06:22 FIRST QUARTER MOON 28 20 Mercury at Greatest Elong: 24.9°W 29 04:04 Venus 3.9°S of Pollux 30 12 Mars at Aphelion: 1.66594 AU 31 01:05 Spica 3.3°S of Moon 31 21:22 Moon at Descending Node Jun 01 18:35 Mars 0.1°S of Beehive 03 12:19 Antares 1.6°S of Moon 03 18:42 FULL MOON 04 02 Venus at Greatest Elong: 45.4°E 06 14:07 Moon at Perigee: 364860 km 09 11:19 Saturn 3.0°N of Moon 10 10:31 LAST QUARTER MOON 11 08:50 Mercury 5.9°S of Pleiades 13 02:05 Venus 0.5°N of Beehive 13 15:05 Moon at Ascending Node 13 21:33 Jupiter 1.5°S of Moon 15 15:47 Pleiades 1.8°N of Moon 16 11:16 Mercury 4.2°N of Aldebaran 16 11:39 Mercury 4.3°S of Moon 17 19:37 NEW MOON 20 00:10 Pollux 1.7°N of Moon 21 01:38 Beehive 3.6°S of Moon 21 05:58 Summer Solstice 21 15:47 Venus 3.7°S of Moon 22 01:09 Mars 3.8°S of Moon 22 09:30 Moon at Apogee: 405385 km 22 22:08 Regulus 4.4°S of Moon 25 22:50 FIRST QUARTER MOON 27 10 Mercury at Perihelion 27 10:08 Spica 3.1°S of Moon 28 03:22 Moon at Descending Node 30 20 Mercury at Superior Conjunction 30 21 Venus 3.6°N of Mars 30 22:20 Antares 1.5°S of Moon | Date AKST Even (h:m)Jul 03 02:39 FULL MOON 04 13:28 Moon at Perigee: 360151 km 06 10 Earth at Aphelion: 1.01668 AU 06 18:05 Saturn 2.7°N of Moon 09 16:48 LAST QUARTER MOON 09 20:21 Mars 0.6°N of Regulus 10 16:23 Moon at Ascending Node 11 12:18 Jupiter 2.2°S of Moon 12 21:31 Pleiades 1.7°N of Moon 14 13:33 Mercury 0.2°N of Beehive 15 23:05 Venus 1.7°S of Regulus 17 09:32 NEW MOON 18 23:56 Mercury 3.5°S of Moon 19 21:56 Moon at Apogee: 406291 km 20 04:53 Regulus 4.2°S of Moon 20 19:00 Mars 3.3°S of Moon 24 18:01 Spica 2.8°S of Moon 25 06:05 Moon at Descending Node 25 13:07 FIRST QUARTER MOON 27 02 Mercury 5.1°N of Venus 28 07 Delta-Aquarid Meteor Shower 28 08:11 Antares 1.3°S of Moon 28 09:21 Mercury 0.1°S of RegulusAug 01 09:31 FULL MOON 01 20:52 Moon at Perigee: 357311 km 03 01:21 Saturn 2.5°N of Moon 06 17:46 Moon at Ascending Node 07 15 Venus at Aphelion 08 00:41 Jupiter 2.9°S of Moon 08 01:28 LAST QUARTER MOON 09 03:16 Pleiades 1.5°N of Moon 09 17 Mercury at Greatest Elong: 27.4°E 10 09 Mercury at Aphelion 12 22 Perseid Meteor Shower 12 23 Mercury 4.7°S of Mars 13 02 Venus at Inferior Conjunction 13 12:36 Pollux 1.7°N of Moon 16 00:38 NEW MOON 16 02:55 Moon at Apogee: 406635 km 18 14:06 Mars 2.2°S of Moon 21 00:28 Spica 2.6°S of Moon 21 07:23 Moon at Descending Node 24 00:57 FIRST QUARTER MOON 24 16:29 Antares 1.1°S of Moon 26 23 Saturn at Opposition 30 06:51 Moon at Perigee: 357182 km 30 09:03 Saturn 2.5°N of Moon 30 16:35 FULL MOON Sep 02 22:44 Moon at Ascending Node 04 10:44 Jupiter 3.3°S of Moon 05 10:25 Pleiades 1.2°N of Moon 06 02 Mercury at Inferior Conjunction 06 13:21 LAST QUARTER MOON 09 18:32 Pollux 1.5°N of Moon 10 20:15 Beehive 3.6°S of Moon 12 06:42 Moon at Apogee: 406289 km 12 17:00 Regulus 4.1°S of Moon 14 16:40 NEW MOON 17 06:12 Spica 2.4°S of Moon 17 10:18 Moon at Descending Node 19 01 Neptune at Opposition 20 22:50 Antares 0.9°S of Moon 22 04 Mercury at Greatest Elong: 17.9°W 22 10:32 FIRST QUARTER MOON 22 21:50 Autumnal Equinox 23 09 Mercury at Perihelion 26 16:25 Saturn 2.7°N of Moon 27 16:05 Moon at Perigee: 359911 km 29 00:57 FULL MOON 30 07:49 Moon at Ascending Node Oct 01 18:16 Jupiter 3.4°S of Moon 02 19:25 Pleiades 1.1°N of Moon 06 04:48 LAST QUARTER MOON 07 01:23 Pollux 1.4°N of Moon 08 02:57 Beehive 3.7°S of Moon 08 21:08 Venus 2.3°S of Regulus 09 18:41 Moon at Apogee: 405426 km 09 23:41 Regulus 4.2°S of Moon 14 08:55 NEW MOON 14 08:59 Annular Solar Eclipse; mag=0.952 14 16:11 Moon at Descending Node 18 04:17 Antares 0.9°S of Moon 19 20 Mercury at Superior Conjunction 21 15 Orionid Meteor Shower 21 18:29 FIRST QUARTER MOON 23 13 Venus at Greatest Elong: 46.4°W 23 22:52 Saturn 2.8°N of Moon 25 17:53 Moon at Perigee: 364873 km 27 18:14 Moon at Ascending Node 28 11:14 Partial Lunar Eclipse; mag=0.122 28 11:24 FULL MOON 28 23:10 Jupiter 3.1°S of Moon 30 05:30 Pleiades 1.1°N of MoonNov 02 19 Jupiter at Opposition 03 09:31 Pollux 1.4°N of Moon 04 10:46 Beehive 3.7°S of Moon 04 23:37 LAST QUARTER MOON 05 15 S Taurid Meteor Shower 06 07:19 Regulus 4.2°S of Moon 06 12:49 Moon at Apogee: 404569 km 09 00:28 Venus 1.0°S of Moon: Occn. 10 20:09 Spica 2.4°S of Moon 10 23:49 Moon at Descending Node 12 15 N Taurid Meteor Shower 13 00:27 NEW MOON 13 09 Uranus at Opposition 16 12:17 Mercury 2.5°N of Antares 17 20 Mars in Conjunction with Sun 17 21 Leonid Meteor Shower 20 01:50 FIRST QUARTER MOON 20 05:02 Saturn 2.7°N of Moon 21 12:03 Moon at Perigee: 369824 km 24 02:02 Moon at Ascending Node 25 02:10 Jupiter 2.8°S of Moon 26 15:02 Pleiades 1.1°N of Moon 27 00:16 FULL MOON 28 00 Venus at Perihelion 29 01:27 Venus 3.9°N of Spica 30 18:23 Pollux 1.6°N of MoonDec 01 19:21 Beehive 3.6°S of Moon 03 15:38 Regulus 4.0°S of Moon 04 05 Mercury at Greatest Elong: 21.3°E 04 09:42 Moon at Apogee: 404348 km 04 20:49 LAST QUARTER MOON 08 05:05 Spica 2.3°S of Moon 08 06:24 Moon at Descending Node 09 07:53 Venus 3.6°N of Moon 12 14:32 NEW MOON 13 20:18 Mercury 4.4°N of Moon 14 10 Geminid Meteor Shower 16 09:53 Moon at Perigee: 367900 km 17 12:58 Saturn 2.5°N of Moon 19 09:39 FIRST QUARTER MOON 20 08 Mercury at Perihelion 21 04:54 Moon at Ascending Node 21 18:28 Winter Solstice 22 05:20 Jupiter 2.6°S of Moon 22 10 Mercury at Inferior Conjunction 22 18 Ursid Meteor Shower 23 22:37 Pleiades 1.1°N of Moon 26 15:33 FULL MOON 27 13 Mercury 3.6°N of Mars 28 02:51 Pollux 1.7°N of Moon 29 03:45 Beehive 3.4°S of Moon 30 23:52 Regulus 3.8°S of 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: 2021 to 2030
The Americas
Below are links to calendars of astronomical events from 2021 to 2030 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 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| EST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| CST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| MST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| PST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| AKST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| HST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
- 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.