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

    

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

        Time Zones Abbreviations
        • 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)

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

book


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

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