2025 Calendar of Astronomical Events




    


2025 Phases of the Moon

Greenwich Mean 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
Greenwich Mean Time
New Moon First Quarter Full Moon Last Quarter
- Jan 6 23:56 Jan 13 22:27 Jan 21 20:31
Jan 29 12:36 Feb 5 08:02 Feb 12 13:53 Feb 20 17:33
Feb 28 00:45 Mar 6 16:32 Mar 14 06:55 t Mar 22 11:30
Mar 29 10:58 P Apr 5 02:15 Apr 13 00:22 Apr 21 01:36
Apr 27 19:31 May 4 13:52 May 12 16:56 May 20 11:59
May 27 03:02 Jun 3 03:41 Jun 11 07:44 Jun 18 19:19
Jun 25 10:31 Jul 2 19:30 Jul 10 20:37 Jul 18 00:38
Jul 24 19:11 Aug 1 12:41 Aug 9 07:55 Aug 16 05:12
Aug 23 06:06 Aug 31 06:25 Sep 7 18:09 t Sep 14 10:33
Sep 21 19:54 P Sep 29 23:54 Oct 7 03:47 Oct 13 18:13
Oct 21 12:25 Oct 29 16:21 Nov 5 13:19 Nov 12 05:28
Nov 20 06:47 Nov 28 06:59 Dec 4 23:14 Dec 11 20:52
Dec 20 01:43 Dec 27 19:10 --

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

Greenwich Mean 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     GMT   Event
        (h:m)

Jan 03  15:24  Venus 1.4°N of Moon
    03  15     Quadrantid Meteor Shower
    04  14     Earth at Perihelion: 0.98333 AU
    04  17:18  Saturn 0.7°S of Moon: Occn.
    05  19:46  Moon at Ascending Node 
    06  23:56  FIRST QUARTER MOON 
    07  23:34  Moon at Perigee: 370173 km
    10  01:01  Pleiades 0.3°S of Moon
    10  04     Venus at Greatest Elong: 47.2°E
    10  23:13  Jupiter 5.4°S of Moon
    13  21:45  Pollux 2.1°N of Moon
    13  22:27  FULL MOON 
    14  03:42  Mars 0.2°S of Moon: Occn.
    14  21:03  Beehive 2.6°S of Moon
    16  01     Mars at Opposition 
    16  14:57  Regulus 2.2°S of Moon
    19  01:48  Moon at Descending Node 
    19  14     Mercury at Aphelion 
    21  03:53  Spica 0.1°N of Moon
    21  04:55  Moon at Apogee: 404299 km
    21  20:31  LAST QUARTER MOON 
    23  17:07  Mars 2.3°S of Pollux
    24  23:34  Antares 0.3°N of Moon
    29  12:36  NEW MOON 
    31  20:27  Jupiter 5.1°N of Aldebaran

Feb 01  04:46  Saturn 1.1°S of Moon: Occn.
    01  20:27  Venus 2.3°N of Moon
    01  22:06  Moon at Ascending Node 
    02  02:43  Moon at Perigee: 367457 km
    05  08:02  FIRST QUARTER MOON 
    06  06:43  Pleiades 0.5°S of Moon
    07  03:35  Jupiter 5.5°S of Moon
    09  12     Mercury at Superior Conjunction 
    09  19:36  Mars 0.8°S of Moon: Occn.
    10  05:19  Pollux 2.1°N of Moon
    11  05:03  Beehive 2.6°S of Moon
    12  13:53  FULL MOON 
    12  23:21  Regulus 2.2°S of Moon
    15  06:53  Moon at Descending Node 
    17  12:01  Spica 0.3°N of Moon
    18  01:11  Moon at Apogee: 404882 km
    19  18     Venus at Perihelion 
    20  17:33  LAST QUARTER MOON 
    21  08:21  Antares 0.4°N of Moon
    25  09     Mercury 1.4° of Saturn
    28  00:45  NEW MOON 

Mar 01  04:03  Mercury 0.4°N of Moon: Occn.
    01  05:40  Moon at Ascending Node 
    01  21:18  Moon at Perigee: 361967 km
    04  14     Mercury at Perihelion 
    05  12:32  Pleiades 0.6°S of Moon
    06  11:31  Jupiter 5.6°S of Moon
    06  16:32  FIRST QUARTER MOON 
    08  06     Mercury at Greatest Elong: 18.2°E
    09  00:27  Mars 1.7°S of Moon
    09  11:06  Pollux 2.0°N of Moon
    10  11:10  Beehive 2.6°S of Moon
    12  06:07  Regulus 2.2°S of Moon
    12  10     Saturn in Conjunction with Sun 
    12  18     Mercury 5.5° of Venus
    14  06:55  FULL MOON 
    14  06:59  Total Lunar Eclipse; mag=1.178
    14  13:45  Moon at Descending Node 
    16  19:16  Spica 0.3°N of Moon
    17  16:37  Moon at Apogee: 405754 km
    19  22     Neptune in Conjunction with Sun 
    20  09:02  Vernal Equinox 
    20  15:58  Antares 0.5°N of Moon
    22  11:30  LAST QUARTER MOON 
    23  01     Venus at Inferior Conjunction 
    24  20     Mercury at Inferior Conjunction 
    28  16:29  Moon at Ascending Node 
    29  10:47  Partial Solar Eclipse; mag=0.938
    29  10:58  NEW MOON 
    29  19:29  Mars 3.9°S of Pollux
    30  05:26  Moon at Perigee: 358127 km

Apr 01  20:28  Pleiades 0.6°S of Moon
    03  00:24  Jupiter 5.5°S of Moon
    05  02:15  FIRST QUARTER MOON 
    05  16:46  Pollux 2.0°N of Moon
    05  19:04  Mars 2.2°S of Moon
    06  16:44  Beehive 2.6°S of Moon
    08  11:51  Regulus 2.2°S of Moon
    10  12     Mercury 2.1° of Saturn
    10  19:56  Moon at Descending Node 
    13  00:22  FULL MOON 
    13  01:39  Spica 0.3°N of Moon
    13  22:48  Moon at Apogee: 406295 km
    16  22:19  Antares 0.4°N of Moon
    16  23     Mars at Aphelion 
    21  01:36  LAST QUARTER MOON 
    21  19     Mercury at Greatest Elong: 27.4°W
    22  13     Lyrid Meteor Shower
    25  01:21  Venus 2.4°N of Moon
    25  02:23  Moon at Ascending Node 
    25  04:15  Saturn 2.3°S of Moon
    26  01:05  Mercury 4.4°S of Moon
    27  16:15  Moon at Perigee: 357119 km
    27  19:31  NEW MOON 
    29  06:35  Pleiades 0.5°S of Moon
    30  17:34  Jupiter 5.4°S of Moon

May 03  00:02  Pollux 2.1°N of Moon
    03  23:12  Mars 2.1°S of Moon
    03  23:27  Beehive 2.5°S of Moon
    04  12:03  Mars 0.3°N of Beehive
    04  13:52  FIRST QUARTER MOON 
    05  02     Eta-Aquarid Meteor Shower
    05  17:58  Regulus 2.0°S of Moon
    07  23:44  Moon at Descending Node 
    10  07:43  Spica 0.4°N of Moon
    11  00:49  Moon at Apogee: 406245 km
    12  16:56  FULL MOON 
    14  04:10  Antares 0.3°N of Moon
    18  01     Uranus in Conjunction with Sun 
    20  11:59  LAST QUARTER MOON 
    22  08:05  Moon at Ascending Node 
    22  17:51  Saturn 2.8°S of Moon
    23  23:52  Venus 4.0°S of Moon
    26  01:37  Moon at Perigee: 359023 km
    27  03:02  NEW MOON 
    30  04     Mercury at Superior Conjunction 
    30  09:13  Pollux 2.3°N of Moon
    31  08:00  Beehive 2.2°S of Moon
    31  13     Mercury at Perihelion 

Jun 01  02     Venus at Greatest Elong: 45.9°W
    01  09:49  Mars 1.4°S of Moon
    02  01:30  Regulus 1.8°S of Moon
    03  03:41  FIRST QUARTER MOON 
    04  01:33  Moon at Descending Node 
    06  14:15  Spica 0.5°N of Moon
    07  10:42  Moon at Apogee: 405553 km
    10  10:25  Antares 0.3°N of Moon
    11  07:44  FULL MOON 
    12  03     Venus at Aphelion 
    17  02:05  Mars 0.7°N of Regulus
    18  09:41  Moon at Ascending Node 
    18  19:19  LAST QUARTER MOON 
    19  03:47  Saturn 3.4°S of Moon
    21  02:42  Summer Solstice 
    21  19:51  Mercury 4.8°S of Pollux
    23  02:59  Pleiades 0.6°S of Moon
    23  04:43  Moon at Perigee: 363178 km
    24  15     Jupiter in Conjunction with Sun 
    25  10:31  NEW MOON 
    27  06:02  Mercury 2.9°S of Moon
    27  17:42  Beehive 2.0°S of Moon
    29  10:26  Regulus 1.5°S of Moon
    30  01:05  Mars 0.2°S of Moon: Occn.

Date     GMT   Event
        (h:m)

Jul 01  03:46  Moon at Descending Node 
    02  17:36  Mercury 1.2°S of Beehive
    02  19:30  FIRST QUARTER MOON 
    03  21     Earth at Aphelion: 1.01664 AU
    03  21:39  Spica 0.8°N of Moon
    04  04     Mercury at Greatest Elong: 25.9°E
    04  15:44  Venus 6.5°S of Pleiades
    05  02:29  Moon at Apogee: 404627 km
    07  17:37  Antares 0.4°N of Moon
    10  20:37  FULL MOON 
    13  08:32  Venus 3.1°N of Aldebaran
    14  13     Mercury at Aphelion 
    15  10:42  Moon at Ascending Node 
    16  10:19  Saturn 3.8°S of Moon
    18  00:38  LAST QUARTER MOON 
    20  10:27  Pleiades 0.7°S of Moon
    20  13:52  Moon at Perigee: 368047 km
    23  04:20  Jupiter 4.9°S of Moon
    24  19:11  NEW MOON 
    26  19:44  Regulus 1.4°S of Moon
    28  04     Delta-Aquarid Meteor Shower
    28  08:30  Moon at Descending Node 
    28  19:45  Mars 1.3°N of Moon
    31  05:45  Spica 1.0°N of Moon

Aug 01  00     Mercury at Inferior Conjunction 
    01  12:41  FIRST QUARTER MOON 
    01  20:37  Moon at Apogee: 404164 km
    04  01:40  Antares 0.6°N of Moon
    09  07:55  FULL MOON 
    11  14:53  Moon at Ascending Node 
    12  15:05  Saturn 4.0°S of Moon
    12  20     Perseid Meteor Shower
    14  18:01  Moon at Perigee: 369287 km
    16  05:12  LAST QUARTER MOON 
    16  16:09  Pleiades 0.9°S of Moon
    19  04:58  Mercury 2.6°S of Beehive
    19  10     Mercury at Greatest Elong: 18.6°W
    19  21:05  Jupiter 4.8°S of Moon
    20  06:15  Venus 7.1°S of Pollux
    20  10:51  Venus 4.9°S of Moon
    20  12:07  Pollux 2.4°N of Moon
    21  11:09  Beehive 2.0°S of Moon
    21  16:14  Mercury 3.7°S of Moon
    23  06:06  NEW MOON 
    24  15:41  Moon at Descending Node 
    26  16:41  Mars 2.8°N of Moon
    27  12     Mercury at Perihelion 
    27  13:57  Spica 1.1°N of Moon
    29  15:34  Moon at Apogee: 404552 km
    31  06:25  FIRST QUARTER MOON 
    31  09:55  Antares 0.7°N of Moon
    31  17:57  Venus 1.4°S of Beehive

Sep 07  18:09  FULL MOON 
    07  18:12  Total Lunar Eclipse; mag=1.362
    07  23:08  Moon at Ascending Node 
    08  20:09  Saturn 4.0°S of Moon
    10  12:09  Moon at Perigee: 364781 km
    12  21:48  Pleiades 1.0°S of Moon
    13  03:28  Mars 2.0°N of Spica
    13  11     Mercury at Superior Conjunction 
    14  10:33  LAST QUARTER MOON 
    16  11:06  Jupiter 4.6°S of Moon
    16  17:58  Pollux 2.4°N of Moon
    17  17:24  Beehive 2.0°S of Moon
    19  08:57  Venus 0.4°N of Regulus
    19  11:11  Regulus 1.3°S of Moon
    19  11:46  Venus 0.8°S of Moon: Occn.
    20  23:13  Moon at Descending Node 
    21  05     Saturn at Opposition 
    21  19:42  Partial Solar Eclipse; mag=0.855
    21  19:54  NEW MOON 
    22  18:20  Autumnal Equinox 
    23  11     Neptune at Opposition 
    23  21:31  Spica 1.1°N of Moon
    24  14:50  Mars 3.9°N of Moon
    26  09:46  Moon at Apogee: 405552 km
    27  17:34  Antares 0.6°N of Moon
    29  23:54  FIRST QUARTER MOON 

Oct 02  11     Venus at Perihelion 
    05  09:20  Moon at Ascending Node 
    06  02:46  Saturn 3.8°S of Moon
    07  03:47  FULL MOON 
    08  12:36  Moon at Perigee: 359819 km
    08  21:17  Jupiter 6.6°S of Pollux
    10  05:20  Pleiades 0.9°S of Moon
    13  18:13  LAST QUARTER MOON 
    13  22:31  Jupiter 4.3°S of Moon
    13  23:31  Pollux 2.5°N of Moon
    14  22:53  Beehive 1.9°S of Moon
    16  16:56  Regulus 1.3°S of Moon
    18  04:34  Moon at Descending Node 
    19  20     Mercury 2.0° of Mars
    19  21:37  Venus 3.7°N of Moon
    21  12     Orionid Meteor Shower
    21  12:25  NEW MOON 
    23  16:15  Mercury 2.3°N of Moon
    23  23:31  Moon at Apogee: 406445 km
    25  00:15  Antares 0.5°N of Moon
    29  16:21  FIRST QUARTER MOON 
    29  22     Mercury at Greatest Elong: 23.9°E

Nov 01  17:46  Moon at Ascending Node 
    02  01:02  Venus 3.3°N of Spica
    02  10:46  Saturn 3.7°S of Moon
    05  13     S Taurid Meteor Shower
    05  13:19  FULL MOON 
    05  22:29  Moon at Perigee: 356833 km
    06  15:26  Pleiades 0.8°S of Moon
    09  02:41  Mercury 2.6°N of Antares
    10  06:40  Pollux 2.7°N of Moon
    10  07:56  Jupiter 4.0°S of Moon
    11  05:27  Beehive 1.7°S of Moon
    12  05:28  LAST QUARTER MOON 
    12  12     N Taurid Meteor Shower
    12  22:51  Regulus 1.1°S of Moon
    13  04     Mercury 1.2° of Mars
    14  06:38  Moon at Descending Node 
    17  10:11  Spica 1.2°N of Moon
    17  18     Leonid Meteor Shower
    20  02:48  Moon at Apogee: 406693 km
    20  06:47  NEW MOON 
    20  09     Mercury at Inferior Conjunction 
    21  13     Uranus at Opposition 
    23  11     Mercury at Perihelion 
    28  06:59  FIRST QUARTER MOON 
    28  21:33  Moon at Ascending Node 
    29  19:08  Saturn 3.7°S of Moon

Dec 04  02:54  Pleiades 0.8°S of Moon
    04  11:06  Moon at Perigee: 356962 km
    04  23:14  FULL MOON 
    07  15:48  Jupiter 3.7°S of Moon
    07  16:21  Pollux 2.9°N of Moon
    07  21     Mercury at Greatest Elong: 20.7°W
    08  14:23  Beehive 1.5°S of Moon
    10  06:32  Regulus 0.8°S of Moon
    11  07:35  Moon at Descending Node 
    11  20:52  LAST QUARTER MOON 
    14  07     Geminid Meteor Shower
    14  16:27  Spica 1.4°N of Moon
    17  06:09  Moon at Apogee: 406324 km
    18  00:19  Jupiter 6.4°S of Pollux
    19  14:05  Mercury 5.4°N of Antares
    20  01:43  NEW MOON 
    21  15:03  Winter Solstice 
    22  16     Ursid Meteor Shower
    25  22:03  Moon at Ascending Node 
    27  03:24  Saturn 4.0°S of Moon
    27  19:10  FIRST QUARTER MOON 
    31  13:21  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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