2025Calendar of Astronomical Events

    

2025Phases of the Moon

Pacific Standard Time

The following table gives the date and time of the Moon's phases for the year. The times listed are for Pacific Standard Time(Greenwich Mean Time - 8 hours).If Daylight Saving Time is in effect, add one hour to the times listed.

2025 Phases of the Moon
Pacific Standard Time
New Moon First Quarter Full Moon Last Quarter
- Jan 6 15:56 Jan 13 14:27 Jan 21 12:31
Jan 29 04:36 Feb 5 00:02 Feb 12 05:53 Feb 20 09:33
Feb 27 16:45 Mar 6 08:32 Mar 13 22:55 t Mar 22 03:30
Mar 29 02:58 P Apr 4 18:15 Apr 12 16:22 Apr 20 17:36
Apr 27 11:31 May 4 05:52 May 12 08:56 May 20 03:59
May 26 19:02 Jun 2 19:41 Jun 10 23:44 Jun 18 11:19
Jun 25 02:31 Jul 2 11:30 Jul 10 12:37 Jul 17 16:38
Jul 24 11:11 Aug 1 04:41 Aug 8 23:55 Aug 15 21:12
Aug 22 22:06 Aug 30 22:25 Sep 7 10:09 t Sep 14 02:33
Sep 21 11:54 P Sep 29 15:54 Oct 6 19:47 Oct 13 10:13
Oct 21 04:25 Oct 29 08:21 Nov 5 05:19 Nov 11 21:28
Nov 19 22:47 Nov 27 22:59 Dec 4 15:14 Dec 11 12:52
Dec 19 17:43 Dec 27 11:10 --

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

Pacific Standard Time

The following table gives the date and time of the important astronomical events for the year. The times listed are for Pacific Standard Time(Greenwich Mean Time - 8 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
Pacific Standard Time
January - June July - December
Date     PST   Event        (h:m)Jan 03  07:24  Venus 1.4°N of Moon    03  07     Quadrantid Meteor Shower    04  06     Earth at Perihelion: 0.98333 AU    04  09:18  Saturn 0.7°S of Moon: Occn.    05  11:46  Moon at Ascending Node     06  15:56  FIRST QUARTER MOON     07  15:34  Moon at Perigee: 370173 km    09  17:01  Pleiades 0.3°S of Moon    09  20     Venus at Greatest Elong: 47.2°E    10  15:13  Jupiter 5.4°S of Moon    13  13:45  Pollux 2.1°N of Moon    13  14:27  FULL MOON     13  19:42  Mars 0.2°S of Moon: Occn.    14  13:03  Beehive 2.6°S of Moon    15  17     Mars at Opposition     16  06:57  Regulus 2.2°S of Moon    18  08     Venus 2.2°N of Saturn    18  17:48  Moon at Descending Node     19  06     Mercury at Aphelion     20  19:53  Spica 0.1°N of Moon    20  20:55  Moon at Apogee: 404299 km    21  12:31  LAST QUARTER MOON     23  09:07  Mars 2.3°S of Pollux    24  15:34  Antares 0.3°N of Moon    29  04:36  NEW MOON     31  12:27  Jupiter 5.1°N of Aldebaran    31  20:46  Saturn 1.1°S of Moon: Occn.Feb 01  12:27  Venus 2.3°N of Moon    01  14:06  Moon at Ascending Node     01  18:43  Moon at Perigee: 367457 km    05  00:02  FIRST QUARTER MOON     05  22:43  Pleiades 0.5°S of Moon    06  19:35  Jupiter 5.5°S of Moon    09  04     Mercury at Superior Conjunction     09  11:36  Mars 0.8°S of Moon: Occn.    09  21:19  Pollux 2.1°N of Moon    10  21:03  Beehive 2.6°S of Moon    12  05:53  FULL MOON     12  15:21  Regulus 2.2°S of Moon    14  22:53  Moon at Descending Node     17  04:01  Spica 0.3°N of Moon    17  17:11  Moon at Apogee: 404882 km    19  10     Venus at Perihelion     20  09:33  LAST QUARTER MOON     21  00:21  Antares 0.4°N of Moon    25  01     Mercury 1.4°N of Saturn    27  16:45  NEW MOON     28  20:03  Mercury 0.4°N of Moon: Occn.    28  21:40  Moon at Ascending Node Mar 01  13:18  Moon at Perigee: 361967 km    04  06     Mercury at Perihelion     05  04:32  Pleiades 0.6°S of Moon    06  03:31  Jupiter 5.6°S of Moon    06  08:32  FIRST QUARTER MOON     07  22     Mercury at Greatest Elong: 18.2°E    08  16:27  Mars 1.7°S of Moon    09  03:06  Pollux 2.0°N of Moon    10  03:10  Beehive 2.6°S of Moon    11  22:07  Regulus 2.2°S of Moon    12  02     Saturn in Conjunction with Sun     12  10     Mercury 5.5°S of Venus    13  22:55  FULL MOON     13  22:59  Total Lunar Eclipse; mag=1.178    14  05:45  Moon at Descending Node     16  11:16  Spica 0.3°N of Moon    17  08:37  Moon at Apogee: 405754 km    19  14     Neptune in Conjunction with Sun     20  01:02  Vernal Equinox     20  07:58  Antares 0.5°N of Moon    22  03:30  LAST QUARTER MOON     22  17     Venus at Inferior Conjunction     24  12     Mercury at Inferior Conjunction     28  08:29  Moon at Ascending Node     29  02:47  Partial Solar Eclipse; mag=0.938    29  02:58  NEW MOON     29  11:29  Mars 3.9°S of Pollux    29  21:26  Moon at Perigee: 358127 kmApr 01  12:28  Pleiades 0.6°S of Moon    02  16:24  Jupiter 5.5°S of Moon    04  18:15  FIRST QUARTER MOON     05  08:46  Pollux 2.0°N of Moon    05  11:04  Mars 2.2°S of Moon    06  08:44  Beehive 2.6°S of Moon    08  03:51  Regulus 2.2°S of Moon    10  04     Mercury 2.1°N of Saturn    10  11:56  Moon at Descending Node     12  16:22  FULL MOON     12  17:39  Spica 0.3°N of Moon    13  14:48  Moon at Apogee: 406295 km    16  14     Mars at Aphelion:  1.66606 AU    16  14:19  Antares 0.4°N of Moon    20  17:36  LAST QUARTER MOON     21  11     Mercury at Greatest Elong: 27.4°W    22  05     Lyrid Meteor Shower    24  17:21  Venus 2.4°N of Moon    24  18:23  Moon at Ascending Node     24  20:15  Saturn 2.3°S of Moon    25  17:05  Mercury 4.4°S of Moon    27  08:15  Moon at Perigee: 357119 km    27  11:31  NEW MOON     28  11     Venus 3.7°N of Saturn    28  22:35  Pleiades 0.5°S of Moon    30  09:34  Jupiter 5.4°S of MoonMay 02  16:02  Pollux 2.1°N of Moon    03  15:12  Mars 2.1°S of Moon    03  15:27  Beehive 2.5°S of Moon    04  04:03  Mars 0.3°N of Beehive    04  05:52  FIRST QUARTER MOON     04  18     Eta-Aquarid Meteor Shower    05  09:58  Regulus 2.0°S of Moon    07  15:44  Moon at Descending Node     09  23:43  Spica 0.4°N of Moon    10  16:49  Moon at Apogee: 406245 km    12  08:56  FULL MOON     13  20:10  Antares 0.3°N of Moon    17  17     Uranus in Conjunction with Sun     20  03:59  LAST QUARTER MOON     22  00:05  Moon at Ascending Node     22  09:51  Saturn 2.8°S of Moon    23  15:52  Venus 4.0°S of Moon    25  17:37  Moon at Perigee: 359023 km    26  19:02  NEW MOON     29  20     Mercury at Superior Conjunction     30  01:13  Pollux 2.3°N of Moon    31  00:00  Beehive 2.2°S of Moon    31  05     Mercury at Perihelion     31  18     Venus at Greatest Elong: 45.9°WJun 01  01:49  Mars 1.4°S of Moon    01  17:30  Regulus 1.8°S of Moon    02  19:41  FIRST QUARTER MOON     03  17:33  Moon at Descending Node     06  06:15  Spica 0.5°N of Moon    07  02:42  Moon at Apogee: 405553 km    08  11     Mercury 2.0°N of Jupiter    10  02:25  Antares 0.3°N of Moon    10  23:44  FULL MOON     11  19     Venus at Aphelion     16  18:05  Mars 0.7°N of Regulus    18  01:41  Moon at Ascending Node     18  11:19  LAST QUARTER MOON     18  19:47  Saturn 3.4°S of Moon    20  18:42  Summer Solstice     21  11:51  Mercury 4.8°S of Pollux    22  18:59  Pleiades 0.6°S of Moon    22  20:43  Moon at Perigee: 363178 km    24  07     Jupiter in Conjunction with Sun     25  02:31  NEW MOON     26  22:02  Mercury 2.9°S of Moon    27  09:42  Beehive 2.0°S of Moon    29  02:26  Regulus 1.5°S of Moon    29  17:05  Mars 0.2°S of Moon: Occn.    30  19:46  Moon at Descending Node 
Date     PST   Event        (h:m)Jul 02  09:36  Mercury 1.2°S of Beehive    02  11:30  FIRST QUARTER MOON     03  13     Earth at Aphelion: 1.01664 AU    03  13:39  Spica 0.8°N of Moon    03  20     Mercury at Greatest Elong: 25.9°E    04  07:44  Venus 6.5°S of Pleiades    04  18:29  Moon at Apogee: 404627 km    07  09:37  Antares 0.4°N of Moon    10  12:37  FULL MOON     13  00:32  Venus 3.1°N of Aldebaran    14  05     Mercury at Aphelion     15  02:42  Moon at Ascending Node     16  02:19  Saturn 3.8°S of Moon    17  16:38  LAST QUARTER MOON     20  02:27  Pleiades 0.7°S of Moon    20  05:52  Moon at Perigee: 368047 km    22  20:20  Jupiter 4.9°S of Moon    24  11:11  NEW MOON     26  11:44  Regulus 1.4°S of Moon    27  20     Delta-Aquarid Meteor Shower    28  00:30  Moon at Descending Node     28  11:45  Mars 1.3°N of Moon    30  21:45  Spica 1.0°N of Moon    31  16     Mercury at Inferior Conjunction Aug 01  04:41  FIRST QUARTER MOON     01  12:37  Moon at Apogee: 404164 km    03  17:40  Antares 0.6°N of Moon    08  23:55  FULL MOON     11  06:53  Moon at Ascending Node     11  23     Venus 0.9°S of Jupiter    12  07:05  Saturn 4.0°S of Moon    12  12     Perseid Meteor Shower    14  10:01  Moon at Perigee: 369287 km    15  21:12  LAST QUARTER MOON     16  08:09  Pleiades 0.9°S of Moon    18  20:58  Mercury 2.6°S of Beehive    19  02     Mercury at Greatest Elong: 18.6°W    19  13:05  Jupiter 4.8°S of Moon    19  22:15  Venus 7.1°S of Pollux    20  02:51  Venus 4.9°S of Moon    20  04:07  Pollux 2.4°N of Moon    21  03:09  Beehive 2.0°S of Moon    21  08:14  Mercury 3.7°S of Moon    22  22:06  NEW MOON     24  07:41  Moon at Descending Node     26  08:41  Mars 2.8°N of Moon    27  04     Mercury at Perihelion     27  05:57  Spica 1.1°N of Moon    29  07:34  Moon at Apogee: 404552 km    30  22:25  FIRST QUARTER MOON     31  01:55  Antares 0.7°N of Moon    31  09:57  Venus 1.4°S of BeehiveSep 07  10:09  FULL MOON     07  10:12  Total Lunar Eclipse; mag=1.362    07  15:08  Moon at Ascending Node     08  12:09  Saturn 4.0°S of Moon    10  04:09  Moon at Perigee: 364781 km    12  13:48  Pleiades 1.0°S of Moon    12  19:28  Mars 2.0°N of Spica    13  03     Mercury at Superior Conjunction     14  02:33  LAST QUARTER MOON     16  03:06  Jupiter 4.6°S of Moon    16  09:58  Pollux 2.4°N of Moon    17  09:24  Beehive 2.0°S of Moon    19  00:57  Venus 0.4°N of Regulus    19  03:11  Regulus 1.3°S of Moon    19  03:46  Venus 0.8°S of Moon: Occn.    20  15:13  Moon at Descending Node     20  21     Saturn at Opposition     21  11:42  Partial Solar Eclipse; mag=0.855    21  11:54  NEW MOON     22  10:20  Autumnal Equinox     23  03     Neptune at Opposition     23  13:31  Spica 1.1°N of Moon    24  06:50  Mars 3.9°N of Moon    26  01:46  Moon at Apogee: 405552 km    27  09:34  Antares 0.6°N of Moon    29  15:54  FIRST QUARTER MOON Oct 02  03     Venus at Perihelion     05  01:20  Moon at Ascending Node     05  18:46  Saturn 3.8°S of Moon    06  19:47  FULL MOON     08  04:36  Moon at Perigee: 359819 km    08  13:17  Jupiter 6.6°S of Pollux    09  21:20  Pleiades 0.9°S of Moon    13  10:13  LAST QUARTER MOON     13  14:31  Jupiter 4.3°S of Moon    13  15:31  Pollux 2.5°N of Moon    14  14:53  Beehive 1.9°S of Moon    16  08:56  Regulus 1.3°S of Moon    17  20:34  Moon at Descending Node     19  12     Mercury 2.0°S of Mars    19  13:37  Venus 3.7°N of Moon    21  04     Orionid Meteor Shower    21  04:25  NEW MOON     23  08:15  Mercury 2.3°N of Moon    23  15:31  Moon at Apogee: 406445 km    24  16:15  Antares 0.5°N of Moon    29  08:21  FIRST QUARTER MOON     29  14     Mercury at Greatest Elong: 23.9°ENov 01  09:46  Moon at Ascending Node     01  17:02  Venus 3.3°N of Spica    02  02:46  Saturn 3.7°S of Moon    05  05     S Taurid Meteor Shower    05  05:19  FULL MOON     05  14:29  Moon at Perigee: 356833 km    06  07:26  Pleiades 0.8°S of Moon    08  18:41  Mercury 2.6°N of Antares    09  22:40  Pollux 2.7°N of Moon    09  23:56  Jupiter 4.0°S of Moon    10  21:27  Beehive 1.7°S of Moon    11  21:28  LAST QUARTER MOON     12  04     N Taurid Meteor Shower    12  14:51  Regulus 1.1°S of Moon    12  20     Mercury 1.2°S of Mars    13  22:38  Moon at Descending Node     17  02:11  Spica 1.2°N of Moon    17  10     Leonid Meteor Shower    19  18:48  Moon at Apogee: 406693 km    19  22:47  NEW MOON     20  01     Mercury at Inferior Conjunction     21  05     Uranus at Opposition     23  03     Mercury at Perihelion     24  16     Mercury 1.0°N of Venus    27  22:59  FIRST QUARTER MOON     28  13:33  Moon at Ascending Node     29  11:08  Saturn 3.7°S of MoonDec 03  18:54  Pleiades 0.8°S of Moon    04  03:06  Moon at Perigee: 356962 km    04  15:14  FULL MOON     07  07:48  Jupiter 3.7°S of Moon    07  08:21  Pollux 2.9°N of Moon    07  13     Mercury at Greatest Elong: 20.7°W    08  06:23  Beehive 1.5°S of Moon    09  22:32  Regulus 0.8°S of Moon    10  23:35  Moon at Descending Node     11  12:52  LAST QUARTER MOON     13  23     Geminid Meteor Shower    14  08:27  Spica 1.4°N of Moon    16  22:09  Moon at Apogee: 406324 km    17  16:19  Jupiter 6.4°S of Pollux    19  06:05  Mercury 5.4°N of Antares    19  17:43  NEW MOON     21  07:03  Winter Solstice     22  08     Ursid Meteor Shower    25  14:03  Moon at Ascending Node     26  19:24  Saturn 4.0°S of Moon    27  11:10  FIRST QUARTER MOON     31  05:21  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