2024Calendar of Astronomical Events

    

2024Phases 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.

2024 Phases of the Moon
Alaska Standard Time
New Moon First Quarter Full Moon Last Quarter
--- Jan 3 18:30
Jan 11 02:57 Jan 17 18:53 Jan 25 08:54 Feb 2 14:18
Feb 9 13:59 Feb 16 06:01 Feb 24 03:30 Mar 3 06:24
Mar 10 00:00 Mar 16 19:11 Mar 24 22:00 n Apr 1 18:15
Apr 8 09:21 T Apr 15 10:13 Apr 23 14:49 May 1 02:27
May 7 18:22 May 15 02:48 May 23 04:53 May 30 08:13
Jun 6 03:38 Jun 13 20:18 Jun 21 16:08 Jun 28 12:53
Jul 5 13:57 Jul 13 13:49 Jul 21 01:17 Jul 27 17:51
Aug 4 02:13 Aug 12 06:19 Aug 19 09:26 Aug 26 00:26
Sep 2 16:55 Sep 10 21:06 Sep 17 17:34 p Sep 24 09:50
Oct 2 09:49 A Oct 10 09:55 Oct 17 02:26 Oct 23 23:03
Nov 1 03:47 Nov 8 20:56 Nov 15 12:29 Nov 22 16:28
Nov 30 21:21 Dec 8 06:27 Dec 15 00:02 Dec 22 13:18
Dec 30 13:27 ---

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.


2024Calendar 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.

2024Calendar of Astronomical Events
Alaska Standard Time
January - June July - December
Date     AKST   Even        (h:m)Jan 01  06:28  Moon at Apogee: 404911 km    02  16     Earth at Perihelion: 0.98330 AU    03  18:30  LAST QUARTER MOON     04  00     Quadrantid Meteor Shower    04  09:52  Moon at Descending Node     04  14:06  Spica 2.0°S of Moon    06  15:30  Venus 6.2°N of Antares    08  05:24  Antares 0.8°S of Moon    08  11:12  Venus 5.7°N of Moon    11  02:57  NEW MOON     12  05     Mercury at Greatest Elong: 23.5°W    13  01:35  Moon at Perigee: 362264 km    14  00:31  Saturn 2.1°N of Moon    17  05:05  Moon at Ascending Node     17  18:53  FIRST QUARTER MOON     18  11:40  Jupiter 2.8°S of Moon    20  04:25  Pleiades 0.9°N of Moon    24  10:00  Pollux 1.7°N of Moon    25  08:54  FULL MOON     25  11:04  Beehive 3.3°S of Moon    27  07     Mercury 0.2°N of Mars    27  07:18  Regulus 3.6°S of Moon    28  23:14  Moon at Apogee: 405781 km    31  11:17  Moon at Descending Node     31  22:04  Spica 1.7°S of MoonFeb 02  08     Mercury at Aphelion     02  14:18  LAST QUARTER MOON     04  15:15  Antares 0.6°S of Moon    07  09:52  Venus 5.4°N of Moon    07  21:30  Mars 4.2°N of Moon    09  13:59  NEW MOON     10  09:49  Moon at Perigee: 358088 km    13  08:01  Moon at Ascending Node     14  23:15  Jupiter 3.2°S of Moon    16  06:01  FIRST QUARTER MOON     16  10:13  Pleiades 0.6°N of Moon    20  15:54  Pollux 1.6°N of Moon    21  17:13  Beehive 3.4°S of Moon    22  00     Venus 0.6°N of Mars    23  13:45  Regulus 3.6°S of Moon    24  03:30  FULL MOON     25  06:00  Moon at Apogee: 406316 km    27  13:53  Moon at Descending Node     27  23     Mercury at Superior Conjunction     28  04:40  Spica 1.5°S of Moon    28  12     Saturn in Conjunction with Sun Mar 02  23:16  Antares 0.4°S of Moon    03  06:24  LAST QUARTER MOON     07  19:59  Mars 3.5°N of Moon    08  08:01  Venus 3.3°N of Moon    09  22:06  Moon at Perigee: 356895 km    10  00:00  NEW MOON     11  16:18  Moon at Ascending Node     13  16:02  Jupiter 3.6°S of Moon    14  17:54  Pleiades 0.4°N of Moon    16  19:11  FIRST QUARTER MOON     17  02     Neptune in Conjunction with Sun     17  08     Mercury at Perihelion     18  21:44  Pollux 1.5°N of Moon    19  08     Venus at Aphelion     19  18:07  Vernal Equinox     19  23:03  Beehive 3.5°S of Moon    21  13     Venus 0.3°N of Saturn    21  19:46  Regulus 3.6°S of Moon    23  06:44  Moon at Apogee: 406292 km    24  13     Mercury at Greatest Elong: 18.7°E    24  22:00  FULL MOON     24  22:13  Pen. Lunar Eclipse; mag=0.956    25  19:07  Moon at Descending Node     26  10:40  Spica 1.4°S of Moon    30  05:24  Antares 0.3°S of MoonApr 01  18:15  LAST QUARTER MOON     05  18:51  Mars 2.0°N of Moon    06  00:20  Saturn 1.2°N of Moon: Occn.    07  07:39  Venus 0.4°S of Moon: Occn.    07  08:53  Moon at Perigee: 358850 km    08  03:20  Moon at Ascending Node     08  09:17  Total Solar Eclipse; mag=1.057    08  09:21  NEW MOON     10  10     Mars 0.4°N of Saturn    10  12:08  Jupiter 4.0°S of Moon    11  03:38  Pleiades 0.4°N of Moon    11  14     Mercury at Inferior Conjunction     15  04:47  Pollux 1.5°N of Moon    15  10:13  FIRST QUARTER MOON     16  05:45  Beehive 3.5°S of Moon    18  02:14  Regulus 3.6°S of Moon    19  04     Mercury 1.7°N of Venus    19  17:09  Moon at Apogee: 405625 km    21  22     Lyrid Meteor Shower    22  01:45  Moon at Descending Node     22  17:02  Spica 1.5°S of Moon    23  14:49  FULL MOON     26  11:00  Antares 0.3°S of MoonMay 01  02:27  LAST QUARTER MOON     03  13:26  Saturn 0.8°N of Moon: Occn.    04  11     Eta-Aquarid Meteor Shower    04  17:26  Mars 0.2°S of Moon: Occn.    05  12:54  Moon at Ascending Node     05  13:11  Moon at Perigee: 363166 km    05  23:25  Mercury 3.8°S of Moon    07  18:22  NEW MOON     08  02     Mars at Perihelion:  1.38150 AU    09  12     Mercury at Greatest Elong: 26.4°W    12  13:17  Pollux 1.6°N of Moon    13  02     Uranus in Conjunction with Sun     13  13:47  Beehive 3.4°S of Moon    15  02:48  FIRST QUARTER MOON     15  09:43  Regulus 3.5°S of Moon    17  10:00  Moon at Apogee: 404641 km    18  09     Jupiter in Conjunction with Sun     19  07:35  Moon at Descending Node     20  00:20  Spica 1.4°S of Moon    23  04:53  FULL MOON     23  17:31  Antares 0.4°S of Moon    30  08:13  LAST QUARTER MOON     30  23:01  Saturn 0.4°N of Moon: Occn.Jun 01  18:08  Moon at Ascending Node     01  22:23  Moon at Perigee: 368108 km    02  14:37  Mars 2.4°S of Moon    04  01     Mercury 0.1°S of Jupiter    04  06     Venus at Superior Conjunction     06  03:38  NEW MOON     08  22:23  Pollux 1.7°N of Moon    09  22:34  Beehive 3.2°S of Moon    11  18:00  Regulus 3.3°S of Moon    13  07     Mercury at Perihelion     13  20:18  FIRST QUARTER MOON     14  04:36  Moon at Apogee: 404078 km    14  07     Mercury at Superior Conjunction     15  11:17  Moon at Descending Node     16  08:28  Spica 1.2°S of Moon    20  01:33  Antares 0.3°S of Moon    20  11:51  Summer Solstice     21  16:08  FULL MOON     27  02:45  Moon at Perigee: 369292 km    27  05:52  Saturn 0.1°S of Moon: Occn.    28  08:34  Mercury 4.7°S of Pollux    28  12:53  LAST QUARTER MOON     28  19:26  Moon at Ascending Node 
Date     AKST   Even        (h:m)Jul 01  09:27  Mars 4.1°S of Moon    02  06:30  Pleiades 0.3°N of Moon    02  23:28  Jupiter 5.0°S of Moon    04  20     Earth at Aphelion: 1.01673 AU    05  13:57  NEW MOON     06  12:12  Mercury 0.1°S of Beehive    07  07:04  Beehive 3.0°S of Moon    07  09:33  Mercury 3.2°S of Moon    07  23:14  Jupiter 4.7°N of Aldebaran    09  02:20  Regulus 3.1°S of Moon    09  17     Venus at Perihelion     11  23:12  Moon at Apogee: 404363 km    12  13:27  Moon at Descending Node     13  13:49  FIRST QUARTER MOON     13  16:48  Spica 0.9°S of Moon    17  10:37  Antares 0.2°S of Moon    20  10:40  Mars 4.7°S of Pleiades    21  01:17  FULL MOON     21  22     Mercury at Greatest Elong: 26.9°E    23  20:43  Moon at Perigee: 364914 km    24  11:38  Saturn 0.4°S of Moon: Occn.    24  16:38  Mercury 1.7°S of Regulus    25  20:33  Moon at Ascending Node     27  07     Mercury at Aphelion     27  13     Delta-Aquarid Meteor Shower    27  17:51  LAST QUARTER MOON     29  12:13  Pleiades 0.1°N of Moon    30  01:37  Mars 5.0°S of Moon    30  14:53  Jupiter 5.4°S of MoonAug 03  16:20  Mars 4.9°N of Aldebaran    04  02:13  NEW MOON     04  13:51  Venus 1.0°N of Regulus    05  13:04  Venus 1.7°S of Moon    07  08     Mercury 5.7°S of Venus    08  16:06  Moon at Descending Node     08  16:32  Moon at Apogee: 405298 km    10  00:34  Spica 0.7°S of Moon    12  05     Perseid Meteor Shower    12  06:19  FIRST QUARTER MOON     13  19:38  Antares 0.0°S of Moon    14  06     Mars 0.3°N of Jupiter    18  17     Mercury at Inferior Conjunction     19  09:26  FULL MOON     20  17:54  Saturn 0.4°S of Moon: Occn.    20  20:05  Moon at Perigee: 360199 km    22  01:27  Moon at Ascending Node     25  17:54  Pleiades 0.1°S of Moon    26  00:26  LAST QUARTER MOON     27  03:43  Jupiter 5.7°S of Moon    27  15:22  Mars 5.3°S of Moon    29  19:47  Pollux 1.7°N of Moon    30  20:31  Beehive 3.1°S of MoonSep 01  00:16  Mercury 5.0°S of Moon    02  16:55  NEW MOON     04  17     Mercury at Greatest Elong: 18.1°W    04  20:43  Moon at Descending Node     05  01:13  Venus 1.2°N of Moon    05  05:55  Moon at Apogee: 406215 km    06  07:22  Spica 0.6°S of Moon    07  19     Saturn at Opposition     08  17:50  Mercury 0.4°N of Regulus    09  06     Mercury at Perihelion     10  03:29  Antares 0.1°N of Moon    10  21:06  FIRST QUARTER MOON     17  01:14  Saturn 0.3°S of Moon: Occn.    17  17:34  FULL MOON     17  17:44  Partial Lunar Eclipse; mag=0.085    17  17:57  Venus 2.2°N of Spica    18  04:26  Moon at Perigee: 357284 km    18  10:51  Moon at Ascending Node     20  14     Neptune at Opposition     22  01:17  Pleiades 0.2°S of Moon    22  03:44  Autumnal Equinox     23  14:20  Jupiter 5.8°S of Moon    24  09:50  LAST QUARTER MOON     25  02:49  Mars 4.9°S of Moon    26  01:25  Pollux 1.6°N of Moon    27  02:08  Beehive 3.1°S of Moon    28  22:16  Regulus 3.0°S of Moon    30  12     Mercury at Superior Conjunction Oct 02  02:52  Moon at Descending Node     02  09:45  Annular Solar Eclipse; mag=0.933    02  09:49  NEW MOON     02  10:40  Moon at Apogee: 406517 km    05  11:27  Venus 3.0°N of Moon    07  09:48  Antares 0.2°N of Moon    10  09:55  FIRST QUARTER MOON     14  09:05  Saturn 0.1°S of Moon: Occn.    15  22:05  Moon at Ascending Node     16  15:46  Moon at Perigee: 357173 km    17  02:26  FULL MOON     18  15:44  Mars 5.7°S of Pollux    19  10:59  Pleiades 0.1°S of Moon    20  21     Orionid Meteor Shower    20  23:04  Jupiter 5.8°S of Moon    23  08:16  Pollux 1.7°N of Moon    23  10:55  Mars 3.9°S of Moon    23  23:03  LAST QUARTER MOON     24  08:35  Beehive 3.1°S of Moon    25  14:43  Venus 3.0°N of Antares    26  04:24  Regulus 2.9°S of Moon    29  08:44  Moon at Descending Node     29  13:50  Moon at Apogee: 406164 kmNov 01  03:47  NEW MOON     02  22:37  Mercury 2.1°N of Moon    03  15:26  Antares 0.1°N of Moon    04  15:16  Venus 3.1°N of Moon    04  21     S Taurid Meteor Shower    08  20:56  FIRST QUARTER MOON     09  19:22  Mercury 2.0°N of Antares    10  16:36  Saturn 0.1°S of Moon: Occn.    11  21     N Taurid Meteor Shower    12  06:59  Moon at Ascending Node     14  02:18  Moon at Perigee: 360110 km    15  12:29  FULL MOON     15  21:59  Pleiades 0.1°S of Moon    15  23     Mercury at Greatest Elong: 22.5°E    16  18     Uranus at Opposition     17  03     Leonid Meteor Shower    17  05:52  Jupiter 5.6°S of Moon    19  17:07  Pollux 1.9°N of Moon    20  12:07  Mars 2.4°S of Moon    20  16:48  Beehive 2.9°S of Moon    22  11:48  Regulus 2.7°S of Moon    22  16:28  LAST QUARTER MOON     25  12:31  Moon at Descending Node     26  02:56  Moon at Apogee: 405315 km    27  02:33  Spica 0.4°S of Moon    30  21:21  NEW MOON Dec 03  05:03  Mars 1.3°N of Beehive    04  13:40  Venus 2.3°N of Moon    05  17     Mercury at Inferior Conjunction     06  05     Mercury at Perihelion     07  11     Jupiter at Opposition     07  23:49  Saturn 0.3°S of Moon: Occn.    08  06:27  FIRST QUARTER MOON     09  10:36  Moon at Ascending Node     12  04:18  Moon at Perigee: 365360 km    13  08:13  Pleiades 0.1°S of Moon    13  16     Geminid Meteor Shower    14  10:41  Jupiter 5.5°S of Moon    15  00:02  FULL MOON     17  03:12  Pollux 2.0°N of Moon    17  23:46  Mars 0.9°S of Moon: Occn.    18  02:28  Beehive 2.7°S of Moon    19  20:37  Regulus 2.5°S of Moon    21  00:20  Winter Solstice     22  01     Ursid Meteor Shower    22  13:18  LAST QUARTER MOON     22  14:21  Moon at Descending Node     23  12:26  Mercury 6.6°N of Antares    23  22:25  Moon at Apogee: 404486 km    24  10:28  Spica 0.2°S of Moon    24  17     Mercury at Greatest Elong: 22.0°W    28  05:37  Antares 0.1°N of Moon    30  13:27  NEW 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

        Time Zones Abbreviations
        • 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)

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.

Accuracy of the Astronomical Events Calendars

The goal of the Astronomical Events Calendars 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 Astronomical Events Calendars
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

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:


Return to: Calendars of Astronomical Events

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