2025Calendar of Astronomical Events

    

2025Phases of the Moon

Eastern Standard Time

The following table gives the date and time of the Moon's phases for the year. The times listed are for Eastern Standard Time(Greenwich Mean Time - 5 hours).If Daylight Saving Time is in effect, add one hour to the times listed.

2025 Phases of the Moon
Eastern Standard Time
New Moon First Quarter Full Moon Last Quarter
- Jan 6 18:56 Jan 13 17:27 Jan 21 15:31
Jan 29 07:36 Feb 5 03:02 Feb 12 08:53 Feb 20 12:33
Feb 27 19:45 Mar 6 11:32 Mar 14 01:55 t Mar 22 06:30
Mar 29 05:58 P Apr 4 21:15 Apr 12 19:22 Apr 20 20:36
Apr 27 14:31 May 4 08:52 May 12 11:56 May 20 06:59
May 26 22:02 Jun 2 22:41 Jun 11 02:44 Jun 18 14:19
Jun 25 05:31 Jul 2 14:30 Jul 10 15:37 Jul 17 19:38
Jul 24 14:11 Aug 1 07:41 Aug 9 02:55 Aug 16 00:12
Aug 23 01:06 Aug 31 01:25 Sep 7 13:09 t Sep 14 05:33
Sep 21 14:54 P Sep 29 18:54 Oct 6 22:47 Oct 13 13:13
Oct 21 07:25 Oct 29 11:21 Nov 5 08:19 Nov 12 00:28
Nov 20 01:47 Nov 28 01:59 Dec 4 18:14 Dec 11 15:52
Dec 19 20:43 Dec 27 14:10 --

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.


2025Calendar of Astronomical Events

Eastern Standard Time

The following table gives the date and time of the important astronomical events for the year. The times listed are for Eastern Standard Time(Greenwich Mean Time - 5 hours).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.

2025Calendar of Astronomical Events
Eastern Standard Time
January - June July - December
Date     EST   Event        (h:m)Jan 03  10:24  Venus 1.4°N of Moon    03  10     Quadrantid Meteor Shower    04  09     Earth at Perihelion: 0.98333 AU    04  12:18  Saturn 0.7°S of Moon: Occn.    05  14:46  Moon at Ascending Node     06  18:56  FIRST QUARTER MOON     07  18:34  Moon at Perigee: 370173 km    09  20:01  Pleiades 0.3°S of Moon    09  23     Venus at Greatest Elong: 47.2°E    10  18:13  Jupiter 5.4°S of Moon    13  16:45  Pollux 2.1°N of Moon    13  17:27  FULL MOON     13  22:42  Mars 0.2°S of Moon: Occn.    14  16:03  Beehive 2.6°S of Moon    15  20     Mars at Opposition     16  09:57  Regulus 2.2°S of Moon    18  11     Venus 2.2°N of Saturn    18  20:48  Moon at Descending Node     19  09     Mercury at Aphelion     20  22:53  Spica 0.1°N of Moon    20  23:55  Moon at Apogee: 404299 km    21  15:31  LAST QUARTER MOON     23  12:07  Mars 2.3°S of Pollux    24  18:34  Antares 0.3°N of Moon    29  07:36  NEW MOON     31  15:27  Jupiter 5.1°N of Aldebaran    31  23:46  Saturn 1.1°S of Moon: Occn.Feb 01  15:27  Venus 2.3°N of Moon    01  17:06  Moon at Ascending Node     01  21:43  Moon at Perigee: 367457 km    05  03:02  FIRST QUARTER MOON     06  01:43  Pleiades 0.5°S of Moon    06  22:35  Jupiter 5.5°S of Moon    09  07     Mercury at Superior Conjunction     09  14:36  Mars 0.8°S of Moon: Occn.    10  00:19  Pollux 2.1°N of Moon    11  00:03  Beehive 2.6°S of Moon    12  08:53  FULL MOON     12  18:21  Regulus 2.2°S of Moon    15  01:53  Moon at Descending Node     17  07:01  Spica 0.3°N of Moon    17  20:11  Moon at Apogee: 404882 km    19  13     Venus at Perihelion     20  12:33  LAST QUARTER MOON     21  03:21  Antares 0.4°N of Moon    25  04     Mercury 1.4°N of Saturn    27  19:45  NEW MOON     28  23:03  Mercury 0.4°N of Moon: Occn.Mar 01  00:40  Moon at Ascending Node     01  16:18  Moon at Perigee: 361967 km    04  09     Mercury at Perihelion     05  07:32  Pleiades 0.6°S of Moon    06  06:31  Jupiter 5.6°S of Moon    06  11:32  FIRST QUARTER MOON     08  01     Mercury at Greatest Elong: 18.2°E    08  19:27  Mars 1.7°S of Moon    09  06:06  Pollux 2.0°N of Moon    10  06:10  Beehive 2.6°S of Moon    12  01:07  Regulus 2.2°S of Moon    12  05     Saturn in Conjunction with Sun     12  13     Mercury 5.5°S of Venus    14  01:55  FULL MOON     14  01:59  Total Lunar Eclipse; mag=1.178    14  08:45  Moon at Descending Node     16  14:16  Spica 0.3°N of Moon    17  11:37  Moon at Apogee: 405754 km    19  17     Neptune in Conjunction with Sun     20  04:02  Vernal Equinox     20  10:58  Antares 0.5°N of Moon    22  06:30  LAST QUARTER MOON     22  20     Venus at Inferior Conjunction     24  15     Mercury at Inferior Conjunction     28  11:29  Moon at Ascending Node     29  05:47  Partial Solar Eclipse; mag=0.938    29  05:58  NEW MOON     29  14:29  Mars 3.9°S of Pollux    30  00:26  Moon at Perigee: 358127 kmApr 01  15:28  Pleiades 0.6°S of Moon    02  19:24  Jupiter 5.5°S of Moon    04  21:15  FIRST QUARTER MOON     05  11:46  Pollux 2.0°N of Moon    05  14:04  Mars 2.2°S of Moon    06  11:44  Beehive 2.6°S of Moon    08  06:51  Regulus 2.2°S of Moon    10  07     Mercury 2.1°N of Saturn    10  14:56  Moon at Descending Node     12  19:22  FULL MOON     12  20:39  Spica 0.3°N of Moon    13  17:48  Moon at Apogee: 406295 km    16  17     Mars at Aphelion:  1.66606 AU    16  17:19  Antares 0.4°N of Moon    20  20:36  LAST QUARTER MOON     21  14     Mercury at Greatest Elong: 27.4°W    22  08     Lyrid Meteor Shower    24  20:21  Venus 2.4°N of Moon    24  21:23  Moon at Ascending Node     24  23:15  Saturn 2.3°S of Moon    25  20:05  Mercury 4.4°S of Moon    27  11:15  Moon at Perigee: 357119 km    27  14:31  NEW MOON     28  14     Venus 3.7°N of Saturn    29  01:35  Pleiades 0.5°S of Moon    30  12:34  Jupiter 5.4°S of MoonMay 02  19:02  Pollux 2.1°N of Moon    03  18:12  Mars 2.1°S of Moon    03  18:27  Beehive 2.5°S of Moon    04  07:03  Mars 0.3°N of Beehive    04  08:52  FIRST QUARTER MOON     04  21     Eta-Aquarid Meteor Shower    05  12:58  Regulus 2.0°S of Moon    07  18:44  Moon at Descending Node     10  02:43  Spica 0.4°N of Moon    10  19:49  Moon at Apogee: 406245 km    12  11:56  FULL MOON     13  23:10  Antares 0.3°N of Moon    17  20     Uranus in Conjunction with Sun     20  06:59  LAST QUARTER MOON     22  03:05  Moon at Ascending Node     22  12:51  Saturn 2.8°S of Moon    23  18:52  Venus 4.0°S of Moon    25  20:37  Moon at Perigee: 359023 km    26  22:02  NEW MOON     29  23     Mercury at Superior Conjunction     30  04:13  Pollux 2.3°N of Moon    31  03:00  Beehive 2.2°S of Moon    31  08     Mercury at Perihelion     31  21     Venus at Greatest Elong: 45.9°WJun 01  04:49  Mars 1.4°S of Moon    01  20:30  Regulus 1.8°S of Moon    02  22:41  FIRST QUARTER MOON     03  20:33  Moon at Descending Node     06  09:15  Spica 0.5°N of Moon    07  05:42  Moon at Apogee: 405553 km    08  14     Mercury 2.0°N of Jupiter    10  05:25  Antares 0.3°N of Moon    11  02:44  FULL MOON     11  22     Venus at Aphelion     16  21:05  Mars 0.7°N of Regulus    18  04:41  Moon at Ascending Node     18  14:19  LAST QUARTER MOON     18  22:47  Saturn 3.4°S of Moon    20  21:42  Summer Solstice     21  14:51  Mercury 4.8°S of Pollux    22  21:59  Pleiades 0.6°S of Moon    22  23:43  Moon at Perigee: 363178 km    24  10     Jupiter in Conjunction with Sun     25  05:31  NEW MOON     27  01:02  Mercury 2.9°S of Moon    27  12:42  Beehive 2.0°S of Moon    29  05:26  Regulus 1.5°S of Moon    29  20:05  Mars 0.2°S of Moon: Occn.    30  22:46  Moon at Descending Node 
Date     EST   Event        (h:m)Jul 02  12:36  Mercury 1.2°S of Beehive    02  14:30  FIRST QUARTER MOON     03  16     Earth at Aphelion: 1.01664 AU    03  16:39  Spica 0.8°N of Moon    03  23     Mercury at Greatest Elong: 25.9°E    04  10:44  Venus 6.5°S of Pleiades    04  21:29  Moon at Apogee: 404627 km    07  12:37  Antares 0.4°N of Moon    10  15:37  FULL MOON     13  03:32  Venus 3.1°N of Aldebaran    14  08     Mercury at Aphelion     15  05:42  Moon at Ascending Node     16  05:19  Saturn 3.8°S of Moon    17  19:38  LAST QUARTER MOON     20  05:27  Pleiades 0.7°S of Moon    20  08:52  Moon at Perigee: 368047 km    22  23:20  Jupiter 4.9°S of Moon    24  14:11  NEW MOON     26  14:44  Regulus 1.4°S of Moon    27  23     Delta-Aquarid Meteor Shower    28  03:30  Moon at Descending Node     28  14:45  Mars 1.3°N of Moon    31  00:45  Spica 1.0°N of Moon    31  19     Mercury at Inferior Conjunction Aug 01  07:41  FIRST QUARTER MOON     01  15:37  Moon at Apogee: 404164 km    03  20:40  Antares 0.6°N of Moon    09  02:55  FULL MOON     11  09:53  Moon at Ascending Node     12  02     Venus 0.9°S of Jupiter    12  10:05  Saturn 4.0°S of Moon    12  15     Perseid Meteor Shower    14  13:01  Moon at Perigee: 369287 km    16  00:12  LAST QUARTER MOON     16  11:09  Pleiades 0.9°S of Moon    18  23:58  Mercury 2.6°S of Beehive    19  05     Mercury at Greatest Elong: 18.6°W    19  16:05  Jupiter 4.8°S of Moon    20  01:15  Venus 7.1°S of Pollux    20  05:51  Venus 4.9°S of Moon    20  07:07  Pollux 2.4°N of Moon    21  06:09  Beehive 2.0°S of Moon    21  11:14  Mercury 3.7°S of Moon    23  01:06  NEW MOON     24  10:41  Moon at Descending Node     26  11:41  Mars 2.8°N of Moon    27  07     Mercury at Perihelion     27  08:57  Spica 1.1°N of Moon    29  10:34  Moon at Apogee: 404552 km    31  01:25  FIRST QUARTER MOON     31  04:55  Antares 0.7°N of Moon    31  12:57  Venus 1.4°S of BeehiveSep 07  13:09  FULL MOON     07  13:12  Total Lunar Eclipse; mag=1.362    07  18:08  Moon at Ascending Node     08  15:09  Saturn 4.0°S of Moon    10  07:09  Moon at Perigee: 364781 km    12  16:48  Pleiades 1.0°S of Moon    12  22:28  Mars 2.0°N of Spica    13  06     Mercury at Superior Conjunction     14  05:33  LAST QUARTER MOON     16  06:06  Jupiter 4.6°S of Moon    16  12:58  Pollux 2.4°N of Moon    17  12:24  Beehive 2.0°S of Moon    19  03:57  Venus 0.4°N of Regulus    19  06:11  Regulus 1.3°S of Moon    19  06:46  Venus 0.8°S of Moon: Occn.    20  18:13  Moon at Descending Node     21  00     Saturn at Opposition     21  14:42  Partial Solar Eclipse; mag=0.855    21  14:54  NEW MOON     22  13:20  Autumnal Equinox     23  06     Neptune at Opposition     23  16:31  Spica 1.1°N of Moon    24  09:50  Mars 3.9°N of Moon    26  04:46  Moon at Apogee: 405552 km    27  12:34  Antares 0.6°N of Moon    29  18:54  FIRST QUARTER MOON Oct 02  06     Venus at Perihelion     05  04:20  Moon at Ascending Node     05  21:46  Saturn 3.8°S of Moon    06  22:47  FULL MOON     08  07:36  Moon at Perigee: 359819 km    08  16:17  Jupiter 6.6°S of Pollux    10  00:20  Pleiades 0.9°S of Moon    13  13:13  LAST QUARTER MOON     13  17:31  Jupiter 4.3°S of Moon    13  18:31  Pollux 2.5°N of Moon    14  17:53  Beehive 1.9°S of Moon    16  11:56  Regulus 1.3°S of Moon    17  23:34  Moon at Descending Node     19  15     Mercury 2.0°S of Mars    19  16:37  Venus 3.7°N of Moon    21  07     Orionid Meteor Shower    21  07:25  NEW MOON     23  11:15  Mercury 2.3°N of Moon    23  18:31  Moon at Apogee: 406445 km    24  19:15  Antares 0.5°N of Moon    29  11:21  FIRST QUARTER MOON     29  17     Mercury at Greatest Elong: 23.9°ENov 01  12:46  Moon at Ascending Node     01  20:02  Venus 3.3°N of Spica    02  05:46  Saturn 3.7°S of Moon    05  08     S Taurid Meteor Shower    05  08:19  FULL MOON     05  17:29  Moon at Perigee: 356833 km    06  10:26  Pleiades 0.8°S of Moon    08  21:41  Mercury 2.6°N of Antares    10  01:40  Pollux 2.7°N of Moon    10  02:56  Jupiter 4.0°S of Moon    11  00:27  Beehive 1.7°S of Moon    12  00:28  LAST QUARTER MOON     12  07     N Taurid Meteor Shower    12  17:51  Regulus 1.1°S of Moon    12  23     Mercury 1.2°S of Mars    14  01:38  Moon at Descending Node     17  05:11  Spica 1.2°N of Moon    17  13     Leonid Meteor Shower    19  21:48  Moon at Apogee: 406693 km    20  01:47  NEW MOON     20  04     Mercury at Inferior Conjunction     21  08     Uranus at Opposition     23  06     Mercury at Perihelion     24  19     Mercury 1.0°N of Venus    28  01:59  FIRST QUARTER MOON     28  16:33  Moon at Ascending Node     29  14:08  Saturn 3.7°S of MoonDec 03  21:54  Pleiades 0.8°S of Moon    04  06:06  Moon at Perigee: 356962 km    04  18:14  FULL MOON     07  10:48  Jupiter 3.7°S of Moon    07  11:21  Pollux 2.9°N of Moon    07  16     Mercury at Greatest Elong: 20.7°W    08  09:23  Beehive 1.5°S of Moon    10  01:32  Regulus 0.8°S of Moon    11  02:35  Moon at Descending Node     11  15:52  LAST QUARTER MOON     14  02     Geminid Meteor Shower    14  11:27  Spica 1.4°N of Moon    17  01:09  Moon at Apogee: 406324 km    17  19:19  Jupiter 6.4°S of Pollux    19  09:05  Mercury 5.4°N of Antares    19  20:43  NEW MOON     21  10:03  Winter Solstice     22  11     Ursid Meteor Shower    25  17:03  Moon at Ascending Node     26  22:24  Saturn 4.0°S of Moon    27  14:10  FIRST QUARTER MOON     31  08:21  Pleiades 0.9°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

        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

Return to: Planetary Ephemeris Data