2012 Calendar of Astronomical Events




    


2012 Phases of the Moon

Pacific 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.

2012 Phases of the Moon
Pacific Standard Time
New Moon First Quarter Full Moon Last Quarter
- Dec 31 22:15 Jan 8 23:30 Jan 16 01:08
Jan 22 23:39 Jan 30 20:10 Feb 7 13:54 Feb 14 09:04
Feb 21 14:35 Feb 29 17:22 Mar 8 01:40 Mar 14 17:25
Mar 22 06:37 Mar 30 11:41 Apr 6 11:19 Apr 13 02:50
Apr 20 23:18 Apr 29 01:58 May 5 19:35 May 12 13:47
May 20 15:47 A May 28 12:16 Jun 4 03:12 p Jun 11 02:41
Jun 19 07:02 Jun 26 19:30 Jul 3 10:52 Jul 10 17:48
Jul 18 20:24 Jul 26 00:56 Aug 1 19:27 Aug 9 10:55
Aug 17 07:54 Aug 24 05:54 Aug 31 05:58 Sep 8 05:15
Sep 15 18:11 Sep 22 11:41 Sep 29 19:19 Oct 7 23:33
Oct 15 04:02 Oct 21 19:32 Oct 29 11:50 Nov 6 16:36
Nov 13 14:08 T Nov 20 06:31 Nov 28 06:46 n Dec 6 07:32
Dec 13 00:42 Dec 19 21:19 Dec 28 02:21 -

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.



2012 Calendar of Astronomical Events

Pacific 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.

2012 Calendar of Astronomical Events
January - June July - December
Date     PST   Event
        (h:m)

Jan 02  12:19  Moon at Apogee: 404580 km
    02  18:46  Jupiter 5.0°S of Moon
    03  23     Quadrantid Meteor Shower
    04  17     Earth at Perihelion: 0.98328 AU
    05  01:17  Pleiades 2.8°N of Moon
    05  23:43  Aldebaran 5.8°S of Moon
    06  06:30  Moon at Descending Node 
    08  23:30  FULL MOON 
    12  05:04  Regulus 5.9°N of Moon
    15  23:21  Spica 2.0°N of Moon
    16  01:08  LAST QUARTER MOON 
    16  11:07  Saturn 6.4°N of Moon
    17  13:28  Moon at Perigee: 369883 km
    17  22     Mercury at Aphelion 
    19  02:59  Antares 4.2°S of Moon
    19  10:26  Moon at Ascending Node 
    22  23:39  NEW MOON 
    30  06:38  Jupiter 4.5°S of Moon
    30  09:42  Moon at Apogee: 404325 km
    30  20:10  FIRST QUARTER MOON 

Feb 01  09:42  Pleiades 3.0°N of Moon
    02  08:22  Aldebaran 5.7°S of Moon
    02  12:02  Moon at Descending Node 
    07  01     Mercury at Superior Conjunction 
    07  13:54  FULL MOON 
    08  12:43  Regulus 5.8°N of Moon
    11  10:32  Moon at Perigee: 367920 km
    12  04:47  Spica 1.8°N of Moon
    12  17:08  Saturn 6.2°N of Moon
    14  09:04  LAST QUARTER MOON 
    15  08:35  Antares 4.4°S of Moon
    15  12:16  Moon at Ascending Node 
    15  16     Mars at Aphelion 
    19  12     Neptune in Conjunction with Sun 
    21  14:35  NEW MOON 
    25  13:44  Venus 3.3°S of Moon
    26  22:16  Jupiter 3.8°S of Moon
    27  06:01  Moon at Apogee: 404864 km
    28  17:46  Pleiades 3.3°N of Moon
    29  14:37  Moon at Descending Node 
    29  16:45  Aldebaran 5.4°S of Moon
    29  17:22  FIRST QUARTER MOON 

Mar 01  21     Mercury at Perihelion 
    03  11     Mars at Opposition 
    05  01     Mercury at Greatest Elong: 18.2°E
    06  22:36  Regulus 5.8°N of Moon
    08  01:40  FULL MOON 
    10  02:02  Moon at Perigee: 362401 km
    10  12:20  Spica 1.5°N of Moon
    10  23:00  Saturn 6.2°N of Moon
    13  12:41  Moon at Ascending Node 
    13  14:10  Antares 4.7°S of Moon
    14  17:25  LAST QUARTER MOON 
    19  21:15  Vernal Equinox 
    20  17     Venus at Perihelion 
    21  11     Mercury at Inferior Conjunction 
    22  06:37  NEW MOON 
    24  10     Uranus in Conjunction with Sun 
    25  15:57  Jupiter 3.1°S of Moon
    25  22:04  Moon at Apogee: 405780 km
    26  10:21  Venus 1.8°N of Moon
    26  23     Venus at Greatest Elong: 46.0°E
    27  00:56  Pleiades 3.5°N of Moon
    27  16:19  Moon at Descending Node 
    28  00:07  Aldebaran 5.2°S of Moon
    30  11:41  FIRST QUARTER MOON 

Apr 03  05:18  Venus 0.4°S of Pleiades
    03  09:10  Regulus 5.9°N of Moon
    06  11:19  FULL MOON 
    06  22:24  Spica 1.5°N of Moon
    07  06:07  Saturn 6.3°N of Moon
    07  08:59  Moon at Perigee: 358314 km
    09  16:47  Moon at Ascending Node 
    09  21:54  Antares 4.9°S of Moon
    13  02:50  LAST QUARTER MOON 
    15  10     Saturn at Opposition 
    15  18:18  Mars 0.7°N of Regulus
    18  09     Mercury at Greatest Elong: 27.5°W
    20  23:18  NEW MOON 
    21  21     Lyrid Meteor Shower
    22  05:49  Moon at Apogee: 406422 km
    23  07:15  Pleiades 3.6°N of Moon
    23  19:43  Moon at Descending Node 
    24  06:27  Aldebaran 5.0°S of Moon
    24  18:21  Venus 5.7°N of Moon
    29  01:58  FIRST QUARTER MOON 
    30  18:31  Regulus 6.1°N of Moon

May 04  09:26  Spica 1.5°N of Moon
    04  10     Eta-Aquarid Meteor Shower
    04  14:04  Saturn 6.4°N of Moon
    05  19:33  Moon at Perigee: 356954 km
    05  19:35  FULL MOON 
    07  01:43  Moon at Ascending Node 
    07  07:57  Antares 5.0°S of Moon
    12  13:47  LAST QUARTER MOON 
    13  05     Jupiter in Conjunction with Sun 
    19  08:13  Moon at Apogee: 406451 km
    20  15:47  NEW MOON 
    20  15:53  Annular Solar Eclipse; mag=0.944
    21  01:20  Moon at Descending Node 
    22  12:52  Venus 4.7°N of Moon
    27  03     Mercury at Superior Conjunction 
    28  01:43  Regulus 6.2°N of Moon
    28  12:16  FIRST QUARTER MOON 
    28  21     Mercury at Perihelion 
    31  19:24  Spica 1.5°N of Moon
    31  21:45  Saturn 6.5°N of Moon

Jun 03  05:19  Moon at Perigee: 358483 km
    03  12:38  Moon at Ascending Node 
    03  18:51  Antares 5.0°S of Moon
    04  03:03  Partial Lunar Eclipse; mag=0.370
    04  03:12  FULL MOON 
    05  17     Venus at Inferior Conjunction 
    11  01:30  Jupiter 4.7°S of Pleiades
    11  02:41  LAST QUARTER MOON 
    15  17:24  Moon at Apogee: 405791 km
    16  19:34  Pleiades 3.6°N of Moon
    17  00:23  Jupiter 1.1°S of Moon: Occn.
    17  07:43  Moon at Descending Node 
    17  16:47  Venus 2.1°S of Moon
    19  07:02  NEW MOON 
    20  09:50  Mercury 4.9°S of Pollux
    20  15:08  Summer Solstice 
    21  02:33  Venus 2.2°N of Aldebaran
    24  07:18  Regulus 6.1°N of Moon
    26  07:02  Mars 5.8°N of Moon
    26  19:30  FIRST QUARTER MOON 
    28  03:04  Spica 1.4°N of Moon
    28  04:40  Saturn 6.3°N of Moon
    30  18     Mercury at Greatest Elong: 25.7°E
    30  21:45  Moon at Ascending Node 

Date     PST   Event
        (h:m)

Jul 01  04:42  Antares 5.0°S of Moon
    01  10:01  Moon at Perigee: 362363 km
    02  06:57  Mercury 1.6°S of Beehive
    03  10:52  FULL MOON 
    04  20     Earth at Aphelion: 1.01668 AU
    08  20:13  Venus 0.9°N of Aldebaran
    10  17:48  LAST QUARTER MOON 
    11  02     Venus at Aphelion 
    11  20     Mercury at Aphelion 
    13  08:47  Moon at Apogee: 404783 km
    14  02:34  Pleiades 3.7°N of Moon
    14  12:55  Moon at Descending Node 
    14  19:02  Jupiter 0.5°S of Moon: Occn.
    15  01:40  Aldebaran 4.9°S of Moon
    15  07:29  Venus 3.8°S of Moon
    18  20:24  NEW MOON 
    21  12:52  Regulus 5.9°N of Moon
    24  14:07  Mars 4.2°N of Moon
    25  08:43  Spica 1.2°N of Moon
    25  11:29  Saturn 6.0°N of Moon
    26  00:56  FIRST QUARTER MOON 
    27  12     Delta-Aquarid Meteor Shower
    28  02:34  Moon at Ascending Node 
    28  12     Mercury at Inferior Conjunction 
    28  12:21  Antares 5.2°S of Moon
    29  00:30  Moon at Perigee: 367318 km
    29  03:45  Jupiter 4.6°N of Aldebaran

Aug 01  19:27  FULL MOON 
    02  05:36  Saturn 4.0°N of Spica
    09  10:55  LAST QUARTER MOON 
    10  02:52  Moon at Apogee: 404125 km
    10  10:12  Pleiades 3.9°N of Moon
    10  16:04  Moon at Descending Node 
    11  09:25  Aldebaran 4.8°S of Moon
    11  12:25  Jupiter 0.1°N of Moon: Occn.
    12  04     Perseid Meteor Shower
    13  11:41  Venus 0.6°S of Moon: Occn.
    13  14:45  Mars 1.6°N of Spica
    15  02     Venus at Greatest Elong: 45.8°W
    15  21:06  Mercury 3.6°N of Moon
    16  04     Mercury at Greatest Elong: 18.7°W
    17  07:55  NEW MOON 
    18  07:33  Mercury 2.1°S of Beehive
    21  14:04  Spica 1.0°N of Moon
    21  19:43  Saturn 5.5°N of Moon
    21  23:50  Mars 2.3°N of Moon
    23  11:39  Moon at Perigee: 369731 km
    24  03     Neptune at Opposition 
    24  03:38  Moon at Ascending Node 
    24  05:54  FIRST QUARTER MOON 
    24  18:02  Antares 5.4°S of Moon
    24  20     Mercury at Perihelion 
    31  05:58  FULL MOON 

Sep 06  18:08  Moon at Descending Node 
    06  22:00  Moon at Apogee: 404296 km
    07  17:23  Aldebaran 4.5°S of Moon
    08  02:59  Jupiter 0.6°N of Moon: Occn.
    08  05:15  LAST QUARTER MOON 
    10  05     Mercury at Superior Conjunction 
    12  09:09  Venus 3.7°N of Moon
    13  00:52  Venus 2.6°S of Beehive
    14  04:51  Regulus 5.9°N of Moon
    15  18:11  NEW MOON 
    17  21:05  Spica 0.8°N of Moon
    18  06:45  Saturn 5.0°N of Moon
    18  18:52  Moon at Perigee: 365749 km
    19  12:36  Mars 0.2°N of Moon: Occn.
    20  04:54  Moon at Ascending Node 
    20  23:30  Antares 5.6°S of Moon
    22  06:49  Autumnal Equinox 
    22  11:41  FIRST QUARTER MOON 
    28  23     Uranus at Opposition 
    29  19:19  FULL MOON 

Oct 01  02:56  Mercury 1.5°N of Spica
    02  19:35  Venus 0.1°S of Regulus
    03  21:15  Moon at Descending Node 
    04  16:43  Moon at Apogee: 405162 km
    05  00     Mercury 3.2° of Saturn
    05  00:58  Aldebaran 4.3°S of Moon
    05  12:50  Jupiter 0.9°N of Moon: Occn.
    07  23:33  LAST QUARTER MOON 
    11  14:52  Regulus 6.0°N of Moon
    12  11:10  Venus 6.3°N of Moon
    15  04:02  NEW MOON 
    16  17:02  Moon at Perigee: 360673 km
    16  17:43  Mercury 1.3°S of Moon
    17  10:27  Moon at Ascending Node 
    18  05:06  Mars 2.0°S of Moon
    18  06:50  Antares 5.8°S of Moon
    20  12:07  Mars 3.5°N of Antares
    20  20     Orionid Meteor Shower
    21  19:32  FIRST QUARTER MOON 
    25  00     Saturn in Conjunction with Sun 
    26  14     Mercury at Greatest Elong: 24.1°E
    29  11:50  FULL MOON 
    31  02:36  Moon at Descending Node 
    31  10     Venus at Perihelion 

Nov 01  07:30  Moon at Apogee: 406050 km
    01  07:49  Aldebaran 4.2°S of Moon
    01  16:58  Jupiter 0.9°N of Moon: Occn.
    04  21     S Taurid Meteor Shower
    06  06:32  Mercury 3.0°N of Antares
    06  16:36  LAST QUARTER MOON 
    08  00:13  Regulus 6.1°N of Moon
    11  09:52  Venus 5.3°N of Moon
    11  17:42  Spica 0.8°N of Moon
    11  20     N Taurid Meteor Shower
    13  14:08  NEW MOON 
    13  14:12  Total Solar Eclipse; mag=1.050
    13  20:37  Moon at Ascending Node 
    14  02:21  Moon at Perigee: 357361 km
    16  01:40  Mars 4.0°S of Moon
    16  17:22  Venus 3.6°N of Spica
    17  02     Leonid Meteor Shower
    17  08     Mercury at Inferior Conjunction 
    20  06:31  FIRST QUARTER MOON 
    20  19     Mercury at Perihelion 
    27  09:05  Moon at Descending Node 
    28  06:33  Pen. Lunar Eclipse; mag=0.915
    28  06:46  FULL MOON 
    28  11:35  Moon at Apogee: 406366 km
    28  14:06  Aldebaran 4.2°S of Moon
    28  16:46  Jupiter 0.6°N of Moon: Occn.

Dec 02  17     Jupiter at Opposition 
    04  15     Mercury at Greatest Elong: 20.6°W
    05  07:35  Regulus 6.1°N of Moon
    06  07:32  LAST QUARTER MOON 
    09  01     Mercury 6.3° of Venus
    09  04:04  Spica 0.8°N of Moon
    10  04:46  Saturn 4.0°N of Moon
    11  05:48  Venus 1.6°N of Moon
    11  07:57  Moon at Ascending Node 
    11  16:44  Mercury 1.1°N of Moon: Occn.
    12  15:14  Moon at Perigee: 357074 km
    12  21:18  Jupiter 4.7°N of Aldebaran
    13  00:42  NEW MOON 
    13  15     Geminid Meteor Shower
    18  01:57  Mercury 5.2°N of Antares
    19  21:19  FIRST QUARTER MOON 
    21  03:12  Winter Solstice 
    22  00     Ursid Meteor Shower
    23  19:19  Venus 5.5°N of Antares
    24  14:27  Moon at Descending Node 
    25  13:19  Moon at Apogee: 406101 km
    25  16:02  Jupiter 0.4°N of Moon: Occn.
    25  20:23  Aldebaran 4.2°S of Moon
    28  02:21  FULL 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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