2023 Sky Event Almanac
Argentina Time
The following table gives the date and time of the important astronomical events for the year . The times listed are for Argentina Time (Coordinated Universal Time − 3 hours) . This time zone may have different names in different countries. If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the almanac.
| 2023 Sky Event Almanac | ||||||||
| Argentina Time | ||||||||
| January - June | July - December | |||||||
Date ART Event
(h:m)
Jan 01 12:25 Moon at Ascending Node
02 17 Mercury at Perihelion
02 22:24 Pleiades 2.6°N of Moon
03 16:35 Mars 0.5°N of Moon: Occn.
04 00 Quadrantid Meteor Shower
04 13 Earth at Perihelion: 0.98329 AU
06 20:08 FULL MOON
07 10 Mercury at Inferior Conjunction
07 10:40 Pollux 1.9°N of Moon
08 06:19 Moon at Apogee: 406459 km
14 18:59 Spica 3.9°S of Moon
14 23:10 LAST QUARTER MOON
16 03:32 Moon at Descending Node
18 06:32 Antares 2.1°S of Moon
20 09 Jupiter at Perihelion: 4.95101 AU
21 17:53 NEW MOON
21 17:58 Moon at Perigee: 356570 km
22 19 Venus 0.3°S of Saturn
23 04:22 Saturn 3.8°N of Moon
23 05:20 Venus 3.5°N of Moon
25 23:00 Jupiter 1.8°N of Moon
28 12:19 FIRST QUARTER MOON
28 13:05 Moon at Ascending Node
30 03 Mercury at Greatest Elong: 25.0°W
30 04:21 Pleiades 2.4°N of Moon
31 01:24 Mars 0.1°N of Moon: Occn.
Feb 03 16:47 Pollux 1.9°N of Moon
04 05:55 Moon at Apogee: 406476 km
05 15:29 FULL MOON
06 14:44 Regulus 4.5°S of Moon
11 01:23 Spica 3.6°S of Moon
12 04:31 Moon at Descending Node
13 13:01 LAST QUARTER MOON
14 15:09 Antares 1.9°S of Moon
15 17 Mercury at Aphelion
16 13 Saturn in Conjunction with Sun
18 17:53 Mercury 3.6°N of Moon
19 06:06 Moon at Perigee: 358267 km
20 04:06 NEW MOON
22 04:57 Venus 2.1°N of Moon
22 18:58 Jupiter 1.2°N of Moon: Occn.
24 15:56 Moon at Ascending Node
26 11:42 Pleiades 2.1°N of Moon
27 05:06 FIRST QUARTER MOON
28 01:32 Mars 1.1°S of Moon: Occn.
Mar 02 01 Venus 0.5°N of Jupiter
02 23:10 Pollux 1.7°N of Moon
03 15:01 Moon at Apogee: 405890 km
05 21:08 Regulus 4.5°S of Moon
07 09:40 FULL MOON
10 07:06 Spica 3.4°S of Moon
11 05:53 Moon at Descending Node
13 21:21 Antares 1.6°S of Moon
14 23:08 LAST QUARTER MOON
15 20 Neptune in Conjunction with Sun
17 08 Mercury at Superior Conjunction
19 12:16 Moon at Perigee: 362698 km
19 12:20 Saturn 3.6°N of Moon
20 18:25 Vernal Equinox
21 14:23 NEW MOON
22 16:54 Jupiter 0.5°N of Moon: Occn.
23 23:08 Moon at Ascending Node
24 07:28 Venus 0.1°N of Moon: Occn.
25 20:42 Pleiades 1.9°N of Moon
28 10:16 Mars 2.3°S of Moon
28 23:32 FIRST QUARTER MOON
30 06:23 Pollux 1.6°N of Moon
31 08:18 Moon at Apogee: 404921 km
31 17 Mercury at Perihelion
Apr 06 01:35 FULL MOON
06 13:45 Spica 3.3°S of Moon
07 10:51 Moon at Descending Node
10 02:50 Antares 1.5°S of Moon
11 01:42 Venus 2.5°S of Pleiades
11 18 Jupiter in Conjunction with Sun
11 19 Mercury at Greatest Elong: 19.5°E
13 06:11 LAST QUARTER MOON
15 23:22 Moon at Perigee: 367967 km
16 00:47 Saturn 3.5°N of Moon
17 13 Venus at Perihelion
20 01:12 NEW MOON
20 01:17 Hybrid Solar Eclipse; mag=1.013
20 08:32 Moon at Ascending Node
22 06:14 Pleiades 1.9°N of Moon
22 22 Lyrid Meteor Shower
23 10:03 Venus 1.3°S of Moon
25 23:18 Mars 3.2°S of Moon
26 14:26 Pollux 1.5°N of Moon
27 18:20 FIRST QUARTER MOON
28 03:43 Moon at Apogee: 404300 km
May 01 20 Mercury at Inferior Conjunction
03 21:55 Spica 3.3°S of Moon
04 18:57 Moon at Descending Node
05 11 Eta-Aquarid Meteor Shower
05 14:23 Pen. Lunar Eclipse; mag=0.964
05 14:34 FULL MOON
07 09:35 Antares 1.5°S of Moon
08 08:27 Mars 4.9°S of Pollux
09 18 Uranus in Conjunction with Sun
11 01:57 Moon at Perigee: 369345 km
12 11:28 LAST QUARTER MOON
13 10:04 Saturn 3.3°N of Moon
17 10:15 Jupiter 0.8°S of Moon: Occn.
17 16:36 Moon at Ascending Node
17 22:34 Mercury 3.6°S of Moon
19 12:53 NEW MOON
23 09:08 Venus 2.2°S of Moon
23 22:37 Pollux 1.6°N of Moon
24 14:32 Mars 3.8°S of Moon
25 22:39 Moon at Apogee: 404510 km
27 12:22 FIRST QUARTER MOON
29 02 Mercury at Greatest Elong: 24.9°W
29 10:04 Venus 3.9°S of Pollux
30 18 Mars at Aphelion: 1.66594 AU
31 07:05 Spica 3.3°S of Moon
Jun 01 03:22 Moon at Descending Node
03 18:19 Antares 1.6°S of Moon
04 00:42 FULL MOON
04 08 Venus at Greatest Elong: 45.4°E
06 20:07 Moon at Perigee: 364860 km
09 17:19 Saturn 3.0°N of Moon
10 16:31 LAST QUARTER MOON
13 21:05 Moon at Ascending Node
14 03:33 Jupiter 1.5°S of Moon
15 21:47 Pleiades 1.8°N of Moon
16 17:16 Mercury 4.2°N of Aldebaran
16 17:39 Mercury 4.3°S of Moon
18 01:37 NEW MOON
20 06:10 Pollux 1.7°N of Moon
21 11:58 Summer Solstice
21 21:47 Venus 3.7°S of Moon
22 07:09 Mars 3.8°S of Moon
22 15:30 Moon at Apogee: 405385 km
23 04:08 Regulus 4.4°S of Moon
26 04:50 FIRST QUARTER MOON
27 16 Mercury at Perihelion
27 16:08 Spica 3.1°S of Moon
28 09:22 Moon at Descending Node
|
Date ART Event
(h:m)
Jul 01 02 Mercury at Superior Conjunction
01 03 Venus 3.6°N of Mars
01 04:20 Antares 1.5°S of Moon
03 08:39 FULL MOON
04 19:28 Moon at Perigee: 360151 km
06 16 Earth at Aphelion: 1.01668 AU
07 00:05 Saturn 2.7°N of Moon
09 22:48 LAST QUARTER MOON
10 02:21 Mars 0.6°N of Regulus
10 22:23 Moon at Ascending Node
11 18:18 Jupiter 2.2°S of Moon
13 03:31 Pleiades 1.7°N of Moon
16 05:05 Venus 1.7°S of Regulus
17 15:32 NEW MOON
19 05:56 Mercury 3.5°S of Moon
20 03:56 Moon at Apogee: 406291 km
20 10:53 Regulus 4.2°S of Moon
21 01:00 Mars 3.3°S of Moon
25 00:01 Spica 2.8°S of Moon
25 12:05 Moon at Descending Node
25 19:07 FIRST QUARTER MOON
28 13 Delta-Aquarid Meteor Shower
28 14:11 Antares 1.3°S of Moon
28 15:21 Mercury 0.1°S of Regulus
Aug 01 15:31 FULL MOON
02 02:52 Moon at Perigee: 357311 km
03 07:21 Saturn 2.5°N of Moon
06 23:46 Moon at Ascending Node
07 21 Venus at Aphelion
08 06:41 Jupiter 2.9°S of Moon
08 07:28 LAST QUARTER MOON
09 09:16 Pleiades 1.5°N of Moon
09 23 Mercury at Greatest Elong: 27.4°E
10 15 Mercury at Aphelion
13 04 Perseid Meteor Shower
13 05 Mercury 4.7°S of Mars
13 08 Venus at Inferior Conjunction
13 18:36 Pollux 1.7°N of Moon
16 06:38 NEW MOON
16 08:55 Moon at Apogee: 406635 km
18 20:06 Mars 2.2°S of Moon
21 06:28 Spica 2.6°S of Moon
21 13:23 Moon at Descending Node
24 06:57 FIRST QUARTER MOON
24 22:29 Antares 1.1°S of Moon
27 05 Saturn at Opposition
30 12:51 Moon at Perigee: 357182 km
30 15:03 Saturn 2.5°N of Moon
30 22:35 FULL MOON
Sep 03 04:44 Moon at Ascending Node
04 16:44 Jupiter 3.3°S of Moon
05 16:25 Pleiades 1.2°N of Moon
06 08 Mercury at Inferior Conjunction
06 19:21 LAST QUARTER MOON
10 00:32 Pollux 1.5°N of Moon
12 12:42 Moon at Apogee: 406289 km
12 23:00 Regulus 4.1°S of Moon
14 22:40 NEW MOON
16 16:19 Mars 0.7°S of Moon: Occn.
17 12:12 Spica 2.4°S of Moon
17 16:18 Moon at Descending Node
19 07 Neptune at Opposition
21 04:50 Antares 0.9°S of Moon
22 10 Mercury at Greatest Elong: 17.9°W
22 16:32 FIRST QUARTER MOON
23 03:50 Autumnal Equinox
23 15 Mercury at Perihelion
26 22:25 Saturn 2.7°N of Moon
27 22:05 Moon at Perigee: 359911 km
29 06:57 FULL MOON
30 13:49 Moon at Ascending Node
Oct 02 00:16 Jupiter 3.4°S of Moon
03 01:25 Pleiades 1.1°N of Moon
06 10:48 LAST QUARTER MOON
07 07:23 Pollux 1.4°N of Moon
09 03:08 Venus 2.3°S of Regulus
10 00:41 Moon at Apogee: 405426 km
10 05:41 Regulus 4.2°S of Moon
14 14:55 NEW MOON
14 14:59 Annular Solar Eclipse; mag=0.952
14 22:11 Moon at Descending Node
18 10:17 Antares 0.9°S of Moon
20 02 Mercury at Superior Conjunction
21 21 Orionid Meteor Shower
22 00:29 FIRST QUARTER MOON
23 19 Venus at Greatest Elong: 46.4°W
24 04:52 Saturn 2.8°N of Moon
25 23:53 Moon at Perigee: 364873 km
28 00:14 Moon at Ascending Node
28 17:14 Partial Lunar Eclipse; mag=0.122
28 17:24 FULL MOON
29 05:10 Jupiter 3.1°S of Moon
30 11:30 Pleiades 1.1°N of Moon
Nov 03 01 Jupiter at Opposition
03 15:31 Pollux 1.4°N of Moon
05 05:37 LAST QUARTER MOON
05 21 S Taurid Meteor Shower
06 13:19 Regulus 4.2°S of Moon
06 18:49 Moon at Apogee: 404569 km
09 06:28 Venus 1.0°S of Moon: Occn.
11 02:09 Spica 2.4°S of Moon
11 05:49 Moon at Descending Node
12 21 N Taurid Meteor Shower
13 06:27 NEW MOON
13 15 Uranus at Opposition
14 16:42 Antares 0.9°S of Moon
16 18:17 Mercury 2.5°N of Antares
18 02 Mars in Conjunction with Sun
18 03 Leonid Meteor Shower
20 07:50 FIRST QUARTER MOON
20 11:02 Saturn 2.7°N of Moon
21 18:03 Moon at Perigee: 369824 km
24 08:02 Moon at Ascending Node
25 08:10 Jupiter 2.8°S of Moon
26 21:02 Pleiades 1.1°N of Moon
27 06:16 FULL MOON
28 06 Venus at Perihelion
29 07:27 Venus 3.9°N of Spica
Dec 01 00:23 Pollux 1.6°N of Moon
03 21:38 Regulus 4.0°S of Moon
04 11 Mercury at Greatest Elong: 21.3°E
04 15:42 Moon at Apogee: 404348 km
05 02:49 LAST QUARTER MOON
08 11:05 Spica 2.3°S of Moon
08 12:24 Moon at Descending Node
09 13:53 Venus 3.6°N of Moon
12 20:32 NEW MOON
14 02:18 Mercury 4.4°N of Moon
14 16 Geminid Meteor Shower
16 15:53 Moon at Perigee: 367900 km
17 18:58 Saturn 2.5°N of Moon
19 15:39 FIRST QUARTER MOON
20 14 Mercury at Perihelion
21 10:54 Moon at Ascending Node
22 00:28 Winter Solstice
22 11:20 Jupiter 2.6°S of Moon
22 16 Mercury at Inferior Conjunction
23 00 Ursid Meteor Shower
24 04:37 Pleiades 1.1°N of Moon
26 21:33 FULL MOON
28 08:51 Pollux 1.7°N of Moon
31 05:52 Regulus 3.8°S of Moon
|
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Terms Used in Sky Event Almanac
- 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
2023 Phases of the Moon
Argentina Time
The following table gives the date and time of the Moon's phases for the year . The times listed are for Argentina Time (Coordinated Universal Time − 3 hours) . This time zone may have different names in different countries. If Daylight Saving Time is in effect, add one hour to the times listed.
| 2023 Phases of the Moon | |||
| Argentina Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 06 20:08 | Jan 14 23:10 |
| Jan 21 17:53 | Jan 28 12:19 | Feb 05 15:29 | Feb 13 13:01 |
| Feb 20 04:06 | Feb 27 05:06 | Mar 07 09:40 | Mar 14 23:08 |
| Mar 21 14:23 | Mar 28 23:32 | Apr 06 01:35 | Apr 13 06:11 |
| Apr 20 01:12 H | Apr 27 18:20 | May 05 14:34 n | May 12 11:28 |
| May 19 12:53 | May 27 12:22 | Jun 04 00:42 | Jun 10 16:31 |
| Jun 18 01:37 | Jun 26 04:50 | Jul 03 08:39 | Jul 09 22:48 |
| Jul 17 15:32 | Jul 25 19:07 | Aug 01 15:31 | Aug 08 07:28 |
| Aug 16 06:38 | Aug 24 06:57 | Aug 30 22:35 | Sep 06 19:21 |
| Sep 14 22:40 | Sep 22 16:32 | Sep 29 06:57 | Oct 06 10:48 |
| Oct 14 14:55 A | Oct 22 00:29 | Oct 28 17:24 p | Nov 05 05:37 |
| Nov 13 06:27 | Nov 20 07:50 | Nov 27 06:16 | Dec 05 02:49 |
| Dec 12 20:32 | Dec 19 15:39 | Dec 26 21:33 | - |
For a collection of images showing the Moon's phases see: Phases of the Moon Photo Gallery.
The Phases of the Moon table also shows when an eclipse takes place. 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 Phases of the Moon table. 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.
Solar Eclipses
The following table contains links to a series of web pages covering the 21st Century. Each one summarizes ten years of solar eclipses. Every eclipse has links to a global visibility map, an interactive Google map, tables, and additional information.
| Decade Pages of Solar Eclipses | |||||
| Decades | |||||
|---|---|---|---|---|---|
| 2001-2010 | 2011-2020 | 2021-2030 | 2031-2040 | 2041-2050 | |
| 2051-2060 | 2061-2070 | 2071-2080 | 2081-2090 | 2091-2100 | |
Lunar Eclipses
The following table contains links to a series of web pages covering the 21st Century. Each one summarizes ten years of lunar eclipses. Every eclipse has links to an eclipse diagram, a global visibility map, tables, and additional information.
| Decade Pages of Lunar Eclipses | |||||
| Decades | |||||
|---|---|---|---|---|---|
| 2001-2010 | 2011-2020 | 2021-2030 | 2031-2040 | 2041-2050 | |
| 2051-2060 | 2061-2070 | 2071-2080 | 2081-2090 | 2091-2100 | |
Sky Event Almanacs: 2021 to 2030
The Americas
Below are links to sky event almanacs from 2021 to 2030 for eight time zones in the Americas.
Choose a time zone and click on a year to get a sky event almanac for that year.
| Sky Event Almanacs - The Americas | |||||||||||||||
| ART | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| 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 | |||||
- ART = Argentina Time (= UTC - 3 hours)
- AST = Atlantic Standard Time (= UTC - 4 hours)
- EST = Eastern Standard Time (= UTC - 5 hours)
- CST = Central Standard Time (= UTC - 6 hours)
- MST = Mountain Standard Time (= UTC - 7 hours)
- PST = Pacific Standard Time (= UTC - 8 hours)
- AKST = Alaskan Standard Time (= UTC - 9 hours)
- HST = Hawaiian Standard Time (= UTC - 10 hours)
(where UTC = Coordinated Universal 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 Coordinated Universal Time to help in identification.
For other years and other time zones, visit: Sky Event Almanacs.
Accuracy of the Sky Event Almanacs
The goal of the Sky Event Almanacs is to present a wide range of solar system phenomena with reasonable accuracy. In general, events listed to the nearest hour are accurate to ± 30 minutes. Events listed with a precision in hours and minutes (i.e., hh:mm) are typically accurate to ± 5 minutes or less.
The following table gives a more detailed breakdown of the accuracy of times for various astronomical events.
| Accuracy of the Sky Event Almanacs | |
| Solstice/Equinox (Earth) | ± 0.5 minute |
| Aphelion/Perihelion (Earth) | ± 30 minutes; ± 0.00001 AU |
| Solar and Lunar Eclipses | ± 0.5 minute |
| Phases of the Moon | ± 0.5 minute |
| Moon at Nodes | ± 2 minutes |
| Apogee/Perigee of Moon | ± 5 minutes; ± 5 kilometers |
| Conjunctions of Moon with Star or Planet | ± 10 minutes |
| Conjunctions of Planet with Planet | ± 3 hours |
| Inferior/Superior Conjunctions (Mercury & Venus) | ± 30 minutes |
| Greatest Elongation (Mercury & Venus) | ± 30 minutes |
| Opposition/Conjunction (Outer Planets) | ± 3 hours |
| Aphelion/Perihelion of Planets | ± 30 minutes |
Fifty Year Almanac of Astronomical Events - 2021 to 2070
For more information and sample pages, see Fifty Year Almanac of Astronomical Events - 2021 To 2070.
Acknowledgements
All calculations are by Fred Espenak and he assumes full responsibility for their accuracy. Algorithms used in predicting many of the astronomical events are based on Astronomical Algorithms by Jean Meeus (Willmann-Bell Inc. Richmond 1998).
Permission is freely granted to reproduce this data when accompanied by the acknowledgment:
- "Sky Event Almanacs Courtesy of Fred Espenak, www.AstroPixels.com".
Return to: Sky Event Almanacs
Return to: Planetary Ephemeris Data
Useful External Links
Interactive Sky Chart (Sky and Telescope)
Sky Maps (sky-map.org)
Astronomical Almanac (Sky and Telescope)
Weather Forecast for Astronomy (Clear Outside)
GOES-East Images (NOAA-GOES)
Astronomy Tools (Astronomy Tools)