2027Calendar of Astronomical Events

    

2027Phases 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.

2027 Phases of the Moon
Pacific Standard Time
New Moon First Quarter Full Moon Last Quarter
Jan 7 12:24 Jan 15 12:34 Jan 22 04:17 Jan 29 02:55
Feb 6 07:56 A Feb 13 23:58 Feb 20 15:23 n Feb 27 21:16
Mar 8 01:29 Mar 15 08:25 Mar 22 02:44 Mar 29 16:54
Apr 6 15:51 Apr 13 14:57 Apr 20 14:27 Apr 28 12:18
May 6 02:58 May 12 20:44 May 20 02:59 May 28 05:58
Jun 4 11:40 Jun 11 02:56 Jun 18 16:44 Jun 26 20:54
Jul 3 19:02 Jul 10 10:39 Jul 18 07:45 Jul 26 08:55
Aug 2 02:05 T Aug 8 20:54 Aug 16 23:29 n Aug 24 18:27
Aug 31 09:41 Sep 7 10:31 Sep 15 15:04 Sep 23 02:20
Sep 29 18:36 Oct 7 03:47 Oct 15 05:47 Oct 22 09:29
Oct 29 05:36 Nov 6 00:00 Nov 13 19:26 Nov 20 16:48
Nov 27 19:24 Dec 5 21:22 Dec 13 08:09 Dec 20 01:11
Dec 27 12:12 ---

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.


2027Calendar 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.

2027Calendar of Astronomical Events
Pacific Standard Time
January - June July - December
Date     PST   Event        (h:m)Jan 01  09     Mercury at Superior Conjunction     02  18     Earth at Perihelion: 0.98333 AU    03  11     Venus at Greatest Elong: 47.0°W    03  20     Quadrantid Meteor Shower    04  08:34  Antares 0.3°N of Moon    07  00:10  Moon at Apogee: 406610 km    07  12:24  NEW MOON     10  07:58  Moon at Ascending Node     15  12:34  FIRST QUARTER MOON     18  00:46  Pleiades 1.1°S of Moon    21  13:49  Moon at Perigee: 357285 km    21  15:18  Pollux 4.4°N of Moon    22  04:17  FULL MOON     22  12:17  Beehive 0.4°N of Moon    23  09:26  Moon at Descending Node     23  16:24  Jupiter 1.5°N of Moon    24  01:19  Regulus 1.5°N of Moon    24  19:39  Mars 6.5°N of Moon    27  23:55  Spica 2.9°N of Moon    29  02:55  LAST QUARTER MOON     31  14:48  Antares 0.4°N of MoonFeb 02  22     Mercury at Greatest Elong: 18.3°E    03  05:31  Moon at Apogee: 406189 km    06  00     Mercury at Perihelion     06  07:56  NEW MOON     06  08:00  Annular Solar Eclipse; mag=0.928    06  13:44  Moon at Ascending Node     07  19:36  Mercury 0.4°N of Moon: Occn.    10  16     Jupiter at Opposition     13  23:58  FIRST QUARTER MOON     14  08:13  Pleiades 1.2°S of Moon    18  01:50  Pollux 4.4°N of Moon    18  09     Mercury at Inferior Conjunction     18  23:16  Beehive 0.4°N of Moon    18  23:30  Moon at Perigee: 361015 km    19  07     Mars at Opposition     19  20:40  Moon at Descending Node     19  21:46  Jupiter 1.2°N of Moon: Occn.    20  12:33  Regulus 1.5°N of Moon    20  15:13  Pen. Lunar Eclipse; mag=0.927    20  15:23  FULL MOON     20  15:48  Mars 5.9°N of Moon    21  20:31  Mars 3.8°N of Regulus    24  09:14  Spica 2.9°N of Moon    27  21:16  LAST QUARTER MOON     27  22:09  Antares 0.4°N of MoonMar 02  21:41  Moon at Apogee: 405221 km    04  10:59  Venus 2.1°N of Moon    04  15     Mars at Aphelion:  1.66610 AU    05  20:41  Moon at Ascending Node     05  21:28  Mercury 1.2°N of Moon    08  01:29  NEW MOON     13  13:43  Pleiades 1.1°S of Moon    15  08:25  FIRST QUARTER MOON     16  23     Mercury at Greatest Elong: 27.6°W    17  09:40  Pollux 4.5°N of Moon    18  07:52  Beehive 0.4°N of Moon    18  20:31  Moon at Perigee: 366440 km    19  02:05  Jupiter 0.9°N of Moon: Occn.    19  05:05  Moon at Descending Node     19  10:33  Mars 4.3°N of Moon    19  22:13  Regulus 1.5°N of Moon    20  12:25  Vernal Equinox     21  23     Mercury at Aphelion     22  02:44  FULL MOON     23  19:12  Spica 2.8°N of Moon    24  14     Neptune in Conjunction with Sun     27  06:36  Antares 0.3°N of Moon    29  16:54  LAST QUARTER MOON     30  17:33  Moon at Apogee: 404331 km    30  22     Mars 4.3°N of JupiterApr 02  02:17  Moon at Ascending Node     03  22:49  Venus 3.3°S of Moon    06  15:51  NEW MOON     07  09     Saturn in Conjunction with Sun     09  19:30  Pleiades 0.9°S of Moon    13  14:57  FIRST QUARTER MOON     13  15:23  Pollux 4.7°N of Moon    13  16:41  Moon at Perigee: 370001 km    14  14:01  Beehive 0.6°N of Moon    15  07:01  Jupiter 1.0°N of Moon: Occn.    15  08:31  Moon at Descending Node     15  17:00  Mars 3.3°N of Moon    16  05:21  Regulus 1.6°N of Moon    16  21     Venus at Aphelion     19  03     Mercury 0.6°N of Saturn    20  04:09  Spica 2.8°N of Moon    20  14:27  FULL MOON     22  17     Lyrid Meteor Shower    23  15:16  Antares 0.1°N of Moon    27  13:21  Moon at Apogee: 404170 km    28  12:18  LAST QUARTER MOON     28  13     Mercury at Superior Conjunction     29  05:24  Moon at Ascending Node May 04  23     Mercury at Perihelion     05  06     Eta-Aquarid Meteor Shower    06  02:58  NEW MOON     07  08     Venus 0.6°N of Saturn    09  12:07  Moon at Perigee: 366635 km    10  21:06  Pollux 4.9°N of Moon    11  19:32  Beehive 0.9°N of Moon    12  09:03  Moon at Descending Node     12  14:49  Jupiter 1.3°N of Moon    12  20:44  FIRST QUARTER MOON     13  10:57  Regulus 1.9°N of Moon    13  11:34  Mars 3.3°N of Moon    13  15:11  Mercury 7.3°N of Aldebaran    14  02:58  Mars 1.1°N of Regulus    17  11:16  Spica 2.9°N of Moon    20  02:59  FULL MOON     20  23:08  Antares 0.0°S of Moon    25  07:13  Moon at Apogee: 404801 km    26  07:22  Moon at Ascending Node     27  00     Uranus in Conjunction with Sun     28  02     Mercury at Greatest Elong: 22.9°E    28  05:58  LAST QUARTER MOON Jun 04  11:40  NEW MOON     05  22:29  Mercury 2.7°S of Moon    06  06:54  Moon at Perigee: 361703 km    07  04:40  Pollux 5.1°N of Moon    08  02:29  Beehive 1.1°N of Moon    08  05:02  Venus 5.0°S of Pleiades    08  11:23  Moon at Descending Node     09  02:54  Jupiter 1.9°N of Moon    09  17:01  Regulus 2.2°N of Moon    10  14:45  Mars 3.9°N of Moon    11  02:56  FIRST QUARTER MOON     13  17:01  Spica 3.0°N of Moon    16  02:11  Venus 4.7°N of Aldebaran    17  05:46  Antares 0.0°S of Moon    18  16:44  FULL MOON     21  06:11  Summer Solstice     21  21:08  Moon at Apogee: 405698 km    22  10:25  Moon at Ascending Node     23  00     Mercury at Inferior Conjunction     26  20:54  LAST QUARTER MOON     30  23:04  Pleiades 0.9°S of Moon
Date     PST   Event        (h:m)Jul 01  00     Mercury 4.6°S of Venus    03  19:02  NEW MOON     04  12:55  Moon at Perigee: 358284 km    04  22     Earth at Aphelion: 1.01673 AU    05  11:38  Beehive 1.2°N of Moon    05  18:14  Moon at Descending Node     06  19:14  Jupiter 2.5°N of Moon    07  01:01  Regulus 2.3°N of Moon    08  23:52  Mars 4.7°N of Moon    10  10:39  FIRST QUARTER MOON     10  22:50  Spica 3.2°N of Moon    14  11:34  Antares 0.1°N of Moon    15  11     Mercury at Greatest Elong: 20.7°W    18  07:45  FULL MOON     18  08:03  Pen. Lunar Eclipse; mag=0.002    19  03:52  Moon at Apogee: 406217 km    19  15:33  Moon at Ascending Node     24  22:23  Jupiter 0.4°N of Regulus    26  08:55  LAST QUARTER MOON     28  08     Delta-Aquarid Meteor Shower    28  08:20  Pleiades 1.0°S of Moon    31  22     Mercury at Perihelion Aug 01  22:28  Moon at Perigee: 357362 km    02  02:05  NEW MOON     02  02:07  Total Solar Eclipse; mag=1.079    02  04:33  Moon at Descending Node     03  14:38  Jupiter 3.0°N of Moon    06  13:13  Mars 5.2°N of Moon    07  06     Venus at Perihelion     07  06:03  Spica 3.3°N of Moon    08  20:54  FIRST QUARTER MOON     10  17:31  Antares 0.1°N of Moon    11  03     Mercury at Superior Conjunction     11  16     Venus at Superior Conjunction     13  00     Perseid Meteor Shower    15  06:23  Moon at Apogee: 406086 km    15  21:51  Moon at Ascending Node     16  23:14  Pen. Lunar Eclipse; mag=0.546    16  23:29  FULL MOON     23  06:36  Mars 1.7°N of Spica    24  15:36  Pleiades 0.9°S of Moon    24  18:27  LAST QUARTER MOON     28  11:14  Pollux 5.2°N of Moon    29  08:49  Beehive 1.3°N of Moon    29  15:01  Moon at Descending Node     30  07:36  Moon at Perigee: 359208 km    31  00     Jupiter in Conjunction with Sun     31  09:41  NEW MOON Sep 01  20:46  Mercury 4.5°N of Moon    03  15:07  Spica 3.2°N of Moon    04  05:45  Mars 5.2°N of Moon    07  00:34  Antares 0.0°N of Moon    07  10:31  FIRST QUARTER MOON     11  15:39  Moon at Apogee: 405384 km    12  03:26  Moon at Ascending Node     13  22     Mercury at Aphelion     15  15:04  FULL MOON     20  19:21  Mercury 0.2°S of Spica    20  21:12  Pleiades 0.8°S of Moon    22  22:02  Autumnal Equinox     23  02:20  LAST QUARTER MOON     24  14     Mercury at Greatest Elong: 26.3°E    24  19:15  Pollux 5.3°N of Moon    25  17:34  Beehive 1.4°N of Moon    25  22:04  Moon at Descending Node     27  07:35  Regulus 2.4°N of Moon    27  12:12  Moon at Perigee: 363455 km    28  05     Neptune at Opposition     28  07:39  Jupiter 4.2°N of Moon    29  18:36  NEW MOON Oct 01  16:27  Mercury 1.8°N of Moon    03  00:58  Mars 4.5°N of Moon    04  09:01  Antares 0.2°S of Moon    07  03:47  FIRST QUARTER MOON     09  06:57  Moon at Ascending Node     09  07:47  Moon at Apogee: 404531 km    11  06     Mercury 3.8°S of Venus    15  05:47  FULL MOON     17  16     Saturn at Opposition     18  02:48  Pleiades 0.6°S of Moon    19  07     Mercury at Inferior Conjunction     21  16     Orionid Meteor Shower    22  01:10  Pollux 5.6°N of Moon    22  09:29  LAST QUARTER MOON     23  00:01  Beehive 1.6°N of Moon    23  00:15  Moon at Descending Node     24  15:09  Regulus 2.6°N of Moon    24  21:36  Moon at Perigee: 368651 km    26  01:33  Jupiter 4.9°N of Moon    27  22     Mercury at Perihelion     29  05:36  NEW MOON     29  05:47  Mars 3.7°N of Antares    30  23:57  Venus 4.4°N of Moon    31  18:13  Antares 0.4°S of Moon    31  22:53  Mars 3.3°N of MoonNov 04  01     Mercury at Greatest Elong: 18.8°W    04  16:48  Mercury 4.0°N of Spica    05  08:54  Moon at Ascending Node     05  17     S Taurid Meteor Shower    06  00:00  FIRST QUARTER MOON     06  03:37  Moon at Apogee: 404183 km    08  22:44  Venus 3.8°N of Antares    12  16     N Taurid Meteor Shower    13  19:26  FULL MOON     14  10:14  Pleiades 0.5°S of Moon    17  22     Leonid Meteor Shower    18  06:45  Pollux 5.9°N of Moon    18  16:10  Moon at Perigee: 369356 km    19  00:34  Moon at Descending Node     19  05:29  Beehive 1.9°N of Moon    20  16:48  LAST QUARTER MOON     20  20:52  Regulus 2.9°N of Moon    22  15:55  Jupiter 5.5°N of Moon    24  17     Venus 0.3°S of Mars    24  18:24  Spica 3.2°N of Moon    27  14     Venus at Aphelion     27  19:24  NEW MOON     29  23:53  Mars 1.6°N of Moon    30  02     Uranus at Opposition     30  05:20  Venus 0.9°N of Moon: Occn.Dec 02  11:38  Moon at Ascending Node     04  00:42  Moon at Apogee: 404663 km    05  21:22  FIRST QUARTER MOON     11  14     Mercury at Superior Conjunction     11  19:55  Pleiades 0.5°S of Moon    13  08:09  FULL MOON     14  12     Geminid Meteor Shower    15  14:19  Pollux 6.0°N of Moon    15  18:21  Moon at Perigee: 364026 km    16  04:21  Moon at Descending Node     16  12:23  Beehive 2.1°N of Moon    18  02:50  Regulus 3.1°N of Moon    20  01:11  LAST QUARTER MOON     20  02:40  Jupiter 6.0°N of Moon    21  18:43  Winter Solstice     22  00:13  Spica 3.3°N of Moon    22  20     Ursid Meteor Shower    25  10:01  Antares 0.4°S of Moon    27  12:12  NEW MOON     29  16:51  Moon at Ascending Node     30  17:54  Venus 3.1°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