2025 Calendar of Astronomical Events




    


2025 Phases of the Moon

Atlantic Standard Time

The following table gives the date and time of the Moon's phases for the year. If Daylight Saving Time is in effect, add one hour to the times listed.

2025 Phases of the Moon
Atlantic Standard Time
New Moon First Quarter Full Moon Last Quarter
- Jan 6 19:56 Jan 13 18:27 Jan 21 16:31
Jan 29 08:36 Feb 5 04:02 Feb 12 09:53 Feb 20 13:33
Feb 27 20:45 Mar 6 12:32 Mar 14 02:55 t Mar 22 07:30
Mar 29 06:58 P Apr 4 22:15 Apr 12 20:22 Apr 20 21:36
Apr 27 15:31 May 4 09:52 May 12 12:56 May 20 07:59
May 26 23:02 Jun 2 23:41 Jun 11 03:44 Jun 18 15:19
Jun 25 06:31 Jul 2 15:30 Jul 10 16:37 Jul 17 20:38
Jul 24 15:11 Aug 1 08:41 Aug 9 03:55 Aug 16 01:12
Aug 23 02:06 Aug 31 02:25 Sep 7 14:09 t Sep 14 06:33
Sep 21 15:54 P Sep 29 19:54 Oct 6 23:47 Oct 13 14:13
Oct 21 08:25 Oct 29 12:21 Nov 5 09:19 Nov 12 01:28
Nov 20 02:47 Nov 28 02:59 Dec 4 19:14 Dec 11 16:52
Dec 19 21:43 Dec 27 15:10 --

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.



2025 Calendar of Astronomical Events

Atlantic Standard Time

The following table gives the date and time of the important astronomical events for the year. If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.

2025 Calendar of Astronomical Events
January - June July - December
Date     AST   Event
        (h:m)

Jan 03  11:24  Venus 1.4°N of Moon
    03  11     Quadrantid Meteor Shower
    04  10     Earth at Perihelion: 0.98333 AU
    04  13:18  Saturn 0.7°S of Moon: Occn.
    05  15:46  Moon at Ascending Node 
    06  19:56  FIRST QUARTER MOON 
    07  19:34  Moon at Perigee: 370173 km
    09  21:01  Pleiades 0.3°S of Moon
    10  00     Venus at Greatest Elong: 47.2°E
    10  19:13  Jupiter 5.4°S of Moon
    13  17:45  Pollux 2.1°N of Moon
    13  18:27  FULL MOON 
    13  23:42  Mars 0.2°S of Moon: Occn.
    14  17:03  Beehive 2.6°S of Moon
    15  21     Mars at Opposition 
    16  10:57  Regulus 2.2°S of Moon
    18  21:48  Moon at Descending Node 
    19  10     Mercury at Aphelion 
    20  23:53  Spica 0.1°N of Moon
    21  00:55  Moon at Apogee: 404299 km
    21  16:31  LAST QUARTER MOON 
    23  13:07  Mars 2.3°S of Pollux
    24  19:34  Antares 0.3°N of Moon
    29  08:36  NEW MOON 
    31  16:27  Jupiter 5.1°N of Aldebaran

Feb 01  00:46  Saturn 1.1°S of Moon: Occn.
    01  16:27  Venus 2.3°N of Moon
    01  18:06  Moon at Ascending Node 
    01  22:43  Moon at Perigee: 367457 km
    05  04:02  FIRST QUARTER MOON 
    06  02:43  Pleiades 0.5°S of Moon
    06  23:35  Jupiter 5.5°S of Moon
    09  08     Mercury at Superior Conjunction 
    09  15:36  Mars 0.8°S of Moon: Occn.
    10  01:19  Pollux 2.1°N of Moon
    11  01:03  Beehive 2.6°S of Moon
    12  09:53  FULL MOON 
    12  19:21  Regulus 2.2°S of Moon
    15  02:53  Moon at Descending Node 
    17  08:01  Spica 0.3°N of Moon
    17  21:11  Moon at Apogee: 404882 km
    19  14     Venus at Perihelion 
    20  13:33  LAST QUARTER MOON 
    21  04:21  Antares 0.4°N of Moon
    25  05     Mercury 1.4° of Saturn
    27  20:45  NEW MOON 

Mar 01  00:03  Mercury 0.4°N of Moon: Occn.
    01  01:40  Moon at Ascending Node 
    01  17:18  Moon at Perigee: 361967 km
    04  10     Mercury at Perihelion 
    05  08:32  Pleiades 0.6°S of Moon
    06  07:31  Jupiter 5.6°S of Moon
    06  12:32  FIRST QUARTER MOON 
    08  02     Mercury at Greatest Elong: 18.2°E
    08  20:27  Mars 1.7°S of Moon
    09  07:06  Pollux 2.0°N of Moon
    10  07:10  Beehive 2.6°S of Moon
    12  02:07  Regulus 2.2°S of Moon
    12  06     Saturn in Conjunction with Sun 
    12  14     Mercury 5.5° of Venus
    14  02:55  FULL MOON 
    14  02:59  Total Lunar Eclipse; mag=1.178
    14  09:45  Moon at Descending Node 
    16  15:16  Spica 0.3°N of Moon
    17  12:37  Moon at Apogee: 405754 km
    19  18     Neptune in Conjunction with Sun 
    20  05:02  Vernal Equinox 
    20  11:58  Antares 0.5°N of Moon
    22  07:30  LAST QUARTER MOON 
    22  21     Venus at Inferior Conjunction 
    24  16     Mercury at Inferior Conjunction 
    28  12:29  Moon at Ascending Node 
    29  06:47  Partial Solar Eclipse; mag=0.938
    29  06:58  NEW MOON 
    29  15:29  Mars 3.9°S of Pollux
    30  01:26  Moon at Perigee: 358127 km

Apr 01  16:28  Pleiades 0.6°S of Moon
    02  20:24  Jupiter 5.5°S of Moon
    04  22:15  FIRST QUARTER MOON 
    05  12:46  Pollux 2.0°N of Moon
    05  15:04  Mars 2.2°S of Moon
    06  12:44  Beehive 2.6°S of Moon
    08  07:51  Regulus 2.2°S of Moon
    10  08     Mercury 2.1° of Saturn
    10  15:56  Moon at Descending Node 
    12  20:22  FULL MOON 
    12  21:39  Spica 0.3°N of Moon
    13  18:48  Moon at Apogee: 406295 km
    16  18:19  Antares 0.4°N of Moon
    16  19     Mars at Aphelion 
    20  21:36  LAST QUARTER MOON 
    21  15     Mercury at Greatest Elong: 27.4°W
    22  09     Lyrid Meteor Shower
    24  21:21  Venus 2.4°N of Moon
    24  22:23  Moon at Ascending Node 
    25  00:15  Saturn 2.3°S of Moon
    25  21:05  Mercury 4.4°S of Moon
    27  12:15  Moon at Perigee: 357119 km
    27  15:31  NEW MOON 
    29  02:35  Pleiades 0.5°S of Moon
    30  13:34  Jupiter 5.4°S of Moon

May 02  20:02  Pollux 2.1°N of Moon
    03  19:12  Mars 2.1°S of Moon
    03  19:27  Beehive 2.5°S of Moon
    04  08:03  Mars 0.3°N of Beehive
    04  09:52  FIRST QUARTER MOON 
    04  22     Eta-Aquarid Meteor Shower
    05  13:58  Regulus 2.0°S of Moon
    07  19:44  Moon at Descending Node 
    10  03:43  Spica 0.4°N of Moon
    10  20:49  Moon at Apogee: 406245 km
    12  12:56  FULL MOON 
    14  00:10  Antares 0.3°N of Moon
    17  21     Uranus in Conjunction with Sun 
    20  07:59  LAST QUARTER MOON 
    22  04:05  Moon at Ascending Node 
    22  13:51  Saturn 2.8°S of Moon
    23  19:52  Venus 4.0°S of Moon
    25  21:37  Moon at Perigee: 359023 km
    26  23:02  NEW MOON 
    30  00     Mercury at Superior Conjunction 
    30  05:13  Pollux 2.3°N of Moon
    31  04:00  Beehive 2.2°S of Moon
    31  09     Mercury at Perihelion 
    31  22     Venus at Greatest Elong: 45.9°W

Jun 01  05:49  Mars 1.4°S of Moon
    01  21:30  Regulus 1.8°S of Moon
    02  23:41  FIRST QUARTER MOON 
    03  21:33  Moon at Descending Node 
    06  10:15  Spica 0.5°N of Moon
    07  06:42  Moon at Apogee: 405553 km
    10  06:25  Antares 0.3°N of Moon
    11  03:44  FULL MOON 
    11  23     Venus at Aphelion 
    16  22:05  Mars 0.7°N of Regulus
    18  05:41  Moon at Ascending Node 
    18  15:19  LAST QUARTER MOON 
    18  23:47  Saturn 3.4°S of Moon
    20  22:42  Summer Solstice 
    21  15:51  Mercury 4.8°S of Pollux
    22  22:59  Pleiades 0.6°S of Moon
    23  00:43  Moon at Perigee: 363178 km
    24  11     Jupiter in Conjunction with Sun 
    25  06:31  NEW MOON 
    27  02:02  Mercury 2.9°S of Moon
    27  13:42  Beehive 2.0°S of Moon
    29  06:26  Regulus 1.5°S of Moon
    29  21:05  Mars 0.2°S of Moon: Occn.
    30  23:46  Moon at Descending Node 

Date     AST   Event
        (h:m)

Jul 02  13:36  Mercury 1.2°S of Beehive
    02  15:30  FIRST QUARTER MOON 
    03  17     Earth at Aphelion: 1.01664 AU
    03  17:39  Spica 0.8°N of Moon
    04  00     Mercury at Greatest Elong: 25.9°E
    04  11:44  Venus 6.5°S of Pleiades
    04  22:29  Moon at Apogee: 404627 km
    07  13:37  Antares 0.4°N of Moon
    10  16:37  FULL MOON 
    13  04:32  Venus 3.1°N of Aldebaran
    14  09     Mercury at Aphelion 
    15  06:42  Moon at Ascending Node 
    16  06:19  Saturn 3.8°S of Moon
    17  20:38  LAST QUARTER MOON 
    20  06:27  Pleiades 0.7°S of Moon
    20  09:52  Moon at Perigee: 368047 km
    23  00:20  Jupiter 4.9°S of Moon
    24  15:11  NEW MOON 
    26  15:44  Regulus 1.4°S of Moon
    28  00     Delta-Aquarid Meteor Shower
    28  04:30  Moon at Descending Node 
    28  15:45  Mars 1.3°N of Moon
    31  01:45  Spica 1.0°N of Moon
    31  20     Mercury at Inferior Conjunction 

Aug 01  08:41  FIRST QUARTER MOON 
    01  16:37  Moon at Apogee: 404164 km
    03  21:40  Antares 0.6°N of Moon
    09  03:55  FULL MOON 
    11  10:53  Moon at Ascending Node 
    12  11:05  Saturn 4.0°S of Moon
    12  16     Perseid Meteor Shower
    14  14:01  Moon at Perigee: 369287 km
    16  01:12  LAST QUARTER MOON 
    16  12:09  Pleiades 0.9°S of Moon
    19  00:58  Mercury 2.6°S of Beehive
    19  06     Mercury at Greatest Elong: 18.6°W
    19  17:05  Jupiter 4.8°S of Moon
    20  02:15  Venus 7.1°S of Pollux
    20  06:51  Venus 4.9°S of Moon
    20  08:07  Pollux 2.4°N of Moon
    21  07:09  Beehive 2.0°S of Moon
    21  12:14  Mercury 3.7°S of Moon
    23  02:06  NEW MOON 
    24  11:41  Moon at Descending Node 
    26  12:41  Mars 2.8°N of Moon
    27  08     Mercury at Perihelion 
    27  09:57  Spica 1.1°N of Moon
    29  11:34  Moon at Apogee: 404552 km
    31  02:25  FIRST QUARTER MOON 
    31  05:55  Antares 0.7°N of Moon
    31  13:57  Venus 1.4°S of Beehive

Sep 07  14:09  FULL MOON 
    07  14:12  Total Lunar Eclipse; mag=1.362
    07  19:08  Moon at Ascending Node 
    08  16:09  Saturn 4.0°S of Moon
    10  08:09  Moon at Perigee: 364781 km
    12  17:48  Pleiades 1.0°S of Moon
    12  23:28  Mars 2.0°N of Spica
    13  07     Mercury at Superior Conjunction 
    14  06:33  LAST QUARTER MOON 
    16  07:06  Jupiter 4.6°S of Moon
    16  13:58  Pollux 2.4°N of Moon
    17  13:24  Beehive 2.0°S of Moon
    19  04:57  Venus 0.4°N of Regulus
    19  07:11  Regulus 1.3°S of Moon
    19  07:46  Venus 0.8°S of Moon: Occn.
    20  19:13  Moon at Descending Node 
    21  01     Saturn at Opposition 
    21  15:42  Partial Solar Eclipse; mag=0.855
    21  15:54  NEW MOON 
    22  14:20  Autumnal Equinox 
    23  07     Neptune at Opposition 
    23  17:31  Spica 1.1°N of Moon
    24  10:50  Mars 3.9°N of Moon
    26  05:46  Moon at Apogee: 405552 km
    27  13:34  Antares 0.6°N of Moon
    29  19:54  FIRST QUARTER MOON 

Oct 02  07     Venus at Perihelion 
    05  05:20  Moon at Ascending Node 
    05  22:46  Saturn 3.8°S of Moon
    06  23:47  FULL MOON 
    08  08:36  Moon at Perigee: 359819 km
    08  17:17  Jupiter 6.6°S of Pollux
    10  01:20  Pleiades 0.9°S of Moon
    13  14:13  LAST QUARTER MOON 
    13  18:31  Jupiter 4.3°S of Moon
    13  19:31  Pollux 2.5°N of Moon
    14  18:53  Beehive 1.9°S of Moon
    16  12:56  Regulus 1.3°S of Moon
    18  00:34  Moon at Descending Node 
    19  16     Mercury 2.0° of Mars
    19  17:37  Venus 3.7°N of Moon
    21  08     Orionid Meteor Shower
    21  08:25  NEW MOON 
    23  12:15  Mercury 2.3°N of Moon
    23  19:31  Moon at Apogee: 406445 km
    24  20:15  Antares 0.5°N of Moon
    29  12:21  FIRST QUARTER MOON 
    29  18     Mercury at Greatest Elong: 23.9°E

Nov 01  13:46  Moon at Ascending Node 
    01  21:02  Venus 3.3°N of Spica
    02  06:46  Saturn 3.7°S of Moon
    05  09     S Taurid Meteor Shower
    05  09:19  FULL MOON 
    05  18:29  Moon at Perigee: 356833 km
    06  11:26  Pleiades 0.8°S of Moon
    08  22:41  Mercury 2.6°N of Antares
    10  02:40  Pollux 2.7°N of Moon
    10  03:56  Jupiter 4.0°S of Moon
    11  01:27  Beehive 1.7°S of Moon
    12  01:28  LAST QUARTER MOON 
    12  08     N Taurid Meteor Shower
    12  18:51  Regulus 1.1°S of Moon
    13  00     Mercury 1.2° of Mars
    14  02:38  Moon at Descending Node 
    17  06:11  Spica 1.2°N of Moon
    17  14     Leonid Meteor Shower
    19  22:48  Moon at Apogee: 406693 km
    20  02:47  NEW MOON 
    20  05     Mercury at Inferior Conjunction 
    21  09     Uranus at Opposition 
    23  07     Mercury at Perihelion 
    28  02:59  FIRST QUARTER MOON 
    28  17:33  Moon at Ascending Node 
    29  15:08  Saturn 3.7°S of Moon

Dec 03  22:54  Pleiades 0.8°S of Moon
    04  07:06  Moon at Perigee: 356962 km
    04  19:14  FULL MOON 
    07  11:48  Jupiter 3.7°S of Moon
    07  12:21  Pollux 2.9°N of Moon
    07  17     Mercury at Greatest Elong: 20.7°W
    08  10:23  Beehive 1.5°S of Moon
    10  02:32  Regulus 0.8°S of Moon
    11  03:35  Moon at Descending Node 
    11  16:52  LAST QUARTER MOON 
    14  03     Geminid Meteor Shower
    14  12:27  Spica 1.4°N of Moon
    17  02:09  Moon at Apogee: 406324 km
    17  20:19  Jupiter 6.4°S of Pollux
    19  10:05  Mercury 5.4°N of Antares
    19  21:43  NEW MOON 
    21  11:03  Winter Solstice 
    22  12     Ursid Meteor Shower
    25  18:03  Moon at Ascending Node 
    26  23:24  Saturn 4.0°S of Moon
    27  15:10  FIRST QUARTER MOON 
    31  09:21  Pleiades 0.9°S of Moon

    

Astronomical Definitions

  • Perihelion - the instant when a planet is closest to the Sun
  • Aphelion - the instant when a planet is furthest from the Sun
  • Perigee - the instant when the Moon is closest to Earth
  • Apogee - the instant when the Moon is furthest from Earth
  • Inferior Conjunction - the instant when a planet passes between Earth and the Sun (Mercury or Venus)
  • Superior Conjunction - the instant when a planet passes on the opposite side of the Sun from Earth (Mercury or Venus)
  • Greatest Elongation - elongation is the apparent angle between a planet and the Sun 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 - the instant when a planet appears opposite the Sun as seen from Earth
  • Conjunction - the instant when a planet appears closest the Sun as seen from Earth
  • Occultation - the Moon occults or eclipses a star or planet
  • Ascending Node - the point where a planet crosses from the southern to northern portion of its orbit
  • Descending Node - the point where a planet crosses from the northern to the southern portion of its orbit



Calendars for Other Years and Time Zones

The table below contains links to astronomical events calendars for a range of years and Time Zones. Abbreviations for the time zones are: GMT = Greenwich Mean Time, AST = Atlantic Standard Time, EST = Eastern Standard Time, CST = Central Standard Time, MST = Mountain Standard Time, PST = Pacific Standard Time, AKST = Alaskan Standard Time, and HST = Hawaiian Standard Time.

Calendar of Astronomical Events
GMT 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
AST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
EST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
CST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
MST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
PST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
AKST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
HST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

For years or time zones not covered above, please visit SKYCAL the astronomical events calendar generator.

Accuracy

The times of astronomical events listed with a precision in hours and minutes (i.e., hh:mm) are accurate to the nearest minute. Similarly, the times of astronomical events listed with a precision in hours (i.e., hh) are accurate to the nearest hour.

A simplified solar ephemeris results an accuracy of ±0.5 hours for the perihelion and aphelion of Earth. The algorithm used in the perihelion and aphelion of the other planets is based on unperturbed elliptical orbits. For Mars, the accuracy is about 2 hours. Due to mutual planetary perturbations, the times for Jupiter may be in error by several weeks, while Saturn's times may be in error by a month. The times for Uranus and Neptune may be in error by several months. In the future, we plan to develop algorithms to improve the computed times of perihelion and aphelion of the planets.

Acknowledgements

All calculations are by Fred Espenak, and he assumes full responsibility for their accuracy. Algorithms used in predicting the phases of the Moon, eclipses and other sky phenomena 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:


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