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