2012 Calendar of Astronomical Events




    


2012 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.

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

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

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.

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

Jan 01  02:15  FIRST QUARTER MOON 
    02  16:19  Moon at Apogee: 404580 km
    02  22:46  Jupiter 5.0°S of Moon
    04  03     Quadrantid Meteor Shower
    04  21     Earth at Perihelion: 0.98328 AU
    05  05:17  Pleiades 2.8°N of Moon
    06  03:43  Aldebaran 5.8°S of Moon
    06  10:30  Moon at Descending Node 
    09  03:30  FULL MOON 
    12  09:04  Regulus 5.9°N of Moon
    16  03:21  Spica 2.0°N of Moon
    16  05:08  LAST QUARTER MOON 
    16  15:07  Saturn 6.4°N of Moon
    17  17:28  Moon at Perigee: 369883 km
    18  02     Mercury at Aphelion 
    19  06:59  Antares 4.2°S of Moon
    19  14:26  Moon at Ascending Node 
    23  03:39  NEW MOON 
    30  10:38  Jupiter 4.5°S of Moon
    30  13:42  Moon at Apogee: 404325 km
    31  00:10  FIRST QUARTER MOON 

Feb 01  13:42  Pleiades 3.0°N of Moon
    02  12:22  Aldebaran 5.7°S of Moon
    02  16:02  Moon at Descending Node 
    07  05     Mercury at Superior Conjunction 
    07  17:54  FULL MOON 
    08  16:43  Regulus 5.8°N of Moon
    11  14:32  Moon at Perigee: 367920 km
    12  08:47  Spica 1.8°N of Moon
    12  21:08  Saturn 6.2°N of Moon
    14  13:04  LAST QUARTER MOON 
    15  12:35  Antares 4.4°S of Moon
    15  16:16  Moon at Ascending Node 
    15  20     Mars at Aphelion 
    19  16     Neptune in Conjunction with Sun 
    21  18:35  NEW MOON 
    25  17:44  Venus 3.3°S of Moon
    27  02:16  Jupiter 3.8°S of Moon
    27  10:01  Moon at Apogee: 404864 km
    28  21:46  Pleiades 3.3°N of Moon
    29  18:37  Moon at Descending Node 
    29  20:45  Aldebaran 5.4°S of Moon
    29  21:22  FIRST QUARTER MOON 

Mar 02  01     Mercury at Perihelion 
    03  15     Mars at Opposition 
    05  05     Mercury at Greatest Elong: 18.2°E
    07  02:36  Regulus 5.8°N of Moon
    08  05:40  FULL MOON 
    10  06:02  Moon at Perigee: 362401 km
    10  16:20  Spica 1.5°N of Moon
    11  03:00  Saturn 6.2°N of Moon
    13  16:41  Moon at Ascending Node 
    13  18:10  Antares 4.7°S of Moon
    14  21:25  LAST QUARTER MOON 
    20  01:15  Vernal Equinox 
    20  21     Venus at Perihelion 
    21  15     Mercury at Inferior Conjunction 
    22  10:37  NEW MOON 
    24  14     Uranus in Conjunction with Sun 
    25  19:57  Jupiter 3.1°S of Moon
    26  02:04  Moon at Apogee: 405780 km
    26  14:21  Venus 1.8°N of Moon
    27  03     Venus at Greatest Elong: 46.0°E
    27  04:56  Pleiades 3.5°N of Moon
    27  20:19  Moon at Descending Node 
    28  04:07  Aldebaran 5.2°S of Moon
    30  15:41  FIRST QUARTER MOON 

Apr 03  09:18  Venus 0.4°S of Pleiades
    03  13:10  Regulus 5.9°N of Moon
    06  15:19  FULL MOON 
    07  02:24  Spica 1.5°N of Moon
    07  10:07  Saturn 6.3°N of Moon
    07  12:59  Moon at Perigee: 358314 km
    09  20:47  Moon at Ascending Node 
    10  01:54  Antares 4.9°S of Moon
    13  06:50  LAST QUARTER MOON 
    15  14     Saturn at Opposition 
    15  22:18  Mars 0.7°N of Regulus
    18  13     Mercury at Greatest Elong: 27.5°W
    21  03:18  NEW MOON 
    22  01     Lyrid Meteor Shower
    22  09:49  Moon at Apogee: 406422 km
    23  11:15  Pleiades 3.6°N of Moon
    23  23:43  Moon at Descending Node 
    24  10:27  Aldebaran 5.0°S of Moon
    24  22:21  Venus 5.7°N of Moon
    29  05:58  FIRST QUARTER MOON 
    30  22:31  Regulus 6.1°N of Moon

May 04  13:26  Spica 1.5°N of Moon
    04  14     Eta-Aquarid Meteor Shower
    04  18:04  Saturn 6.4°N of Moon
    05  23:33  Moon at Perigee: 356954 km
    05  23:35  FULL MOON 
    07  05:43  Moon at Ascending Node 
    07  11:57  Antares 5.0°S of Moon
    12  17:47  LAST QUARTER MOON 
    13  09     Jupiter in Conjunction with Sun 
    19  12:13  Moon at Apogee: 406451 km
    20  19:47  NEW MOON 
    20  19:53  Annular Solar Eclipse; mag=0.944
    21  05:20  Moon at Descending Node 
    22  16:52  Venus 4.7°N of Moon
    27  07     Mercury at Superior Conjunction 
    28  05:43  Regulus 6.2°N of Moon
    28  16:16  FIRST QUARTER MOON 
    29  01     Mercury at Perihelion 
    31  23:24  Spica 1.5°N of Moon

Jun 01  01:45  Saturn 6.5°N of Moon
    03  09:19  Moon at Perigee: 358483 km
    03  16:38  Moon at Ascending Node 
    03  22:51  Antares 5.0°S of Moon
    04  07:03  Partial Lunar Eclipse; mag=0.370
    04  07:12  FULL MOON 
    05  21     Venus at Inferior Conjunction 
    11  05:30  Jupiter 4.7°S of Pleiades
    11  06:41  LAST QUARTER MOON 
    15  21:24  Moon at Apogee: 405791 km
    16  23:34  Pleiades 3.6°N of Moon
    17  04:23  Jupiter 1.1°S of Moon: Occn.
    17  11:43  Moon at Descending Node 
    17  20:47  Venus 2.1°S of Moon
    19  11:02  NEW MOON 
    20  13:50  Mercury 4.9°S of Pollux
    20  19:08  Summer Solstice 
    21  06:33  Venus 2.2°N of Aldebaran
    24  11:18  Regulus 6.1°N of Moon
    26  11:02  Mars 5.8°N of Moon
    26  23:30  FIRST QUARTER MOON 
    28  07:04  Spica 1.4°N of Moon
    28  08:40  Saturn 6.3°N of Moon
    30  22     Mercury at Greatest Elong: 25.7°E

Date     AST   Event
        (h:m)

Jul 01  01:45  Moon at Ascending Node 
    01  08:42  Antares 5.0°S of Moon
    01  14:01  Moon at Perigee: 362363 km
    02  10:57  Mercury 1.6°S of Beehive
    03  14:52  FULL MOON 
    05  00     Earth at Aphelion: 1.01668 AU
    09  00:13  Venus 0.9°N of Aldebaran
    10  21:48  LAST QUARTER MOON 
    11  06     Venus at Aphelion 
    12  00     Mercury at Aphelion 
    13  12:47  Moon at Apogee: 404783 km
    14  06:34  Pleiades 3.7°N of Moon
    14  16:55  Moon at Descending Node 
    14  23:02  Jupiter 0.5°S of Moon: Occn.
    15  05:40  Aldebaran 4.9°S of Moon
    15  11:29  Venus 3.8°S of Moon
    19  00:24  NEW MOON 
    21  16:52  Regulus 5.9°N of Moon
    24  18:07  Mars 4.2°N of Moon
    25  12:43  Spica 1.2°N of Moon
    25  15:29  Saturn 6.0°N of Moon
    26  04:56  FIRST QUARTER MOON 
    27  16     Delta-Aquarid Meteor Shower
    28  06:34  Moon at Ascending Node 
    28  16     Mercury at Inferior Conjunction 
    28  16:21  Antares 5.2°S of Moon
    29  04:30  Moon at Perigee: 367318 km
    29  07:45  Jupiter 4.6°N of Aldebaran

Aug 01  23:27  FULL MOON 
    02  09:36  Saturn 4.0°N of Spica
    09  14:55  LAST QUARTER MOON 
    10  06:52  Moon at Apogee: 404125 km
    10  14:12  Pleiades 3.9°N of Moon
    10  20:04  Moon at Descending Node 
    11  13:25  Aldebaran 4.8°S of Moon
    11  16:25  Jupiter 0.1°N of Moon: Occn.
    12  08     Perseid Meteor Shower
    13  15:41  Venus 0.6°S of Moon: Occn.
    13  18:45  Mars 1.6°N of Spica
    15  06     Venus at Greatest Elong: 45.8°W
    16  01:06  Mercury 3.6°N of Moon
    16  08     Mercury at Greatest Elong: 18.7°W
    17  11:55  NEW MOON 
    18  11:33  Mercury 2.1°S of Beehive
    21  18:04  Spica 1.0°N of Moon
    21  23:43  Saturn 5.5°N of Moon
    22  03:50  Mars 2.3°N of Moon
    23  15:39  Moon at Perigee: 369731 km
    24  07     Neptune at Opposition 
    24  07:38  Moon at Ascending Node 
    24  09:54  FIRST QUARTER MOON 
    24  22:02  Antares 5.4°S of Moon
    25  00     Mercury at Perihelion 
    31  09:58  FULL MOON 

Sep 06  22:08  Moon at Descending Node 
    07  02:00  Moon at Apogee: 404296 km
    07  21:23  Aldebaran 4.5°S of Moon
    08  06:59  Jupiter 0.6°N of Moon: Occn.
    08  09:15  LAST QUARTER MOON 
    10  09     Mercury at Superior Conjunction 
    12  13:09  Venus 3.7°N of Moon
    13  04:52  Venus 2.6°S of Beehive
    14  08:51  Regulus 5.9°N of Moon
    15  22:11  NEW MOON 
    18  01:05  Spica 0.8°N of Moon
    18  10:45  Saturn 5.0°N of Moon
    18  22:52  Moon at Perigee: 365749 km
    19  16:36  Mars 0.2°N of Moon: Occn.
    20  08:54  Moon at Ascending Node 
    21  03:30  Antares 5.6°S of Moon
    22  10:49  Autumnal Equinox 
    22  15:41  FIRST QUARTER MOON 
    29  03     Uranus at Opposition 
    29  23:19  FULL MOON 

Oct 01  06:56  Mercury 1.5°N of Spica
    02  23:35  Venus 0.1°S of Regulus
    04  01:15  Moon at Descending Node 
    04  20:43  Moon at Apogee: 405162 km
    05  04     Mercury 3.2° of Saturn
    05  04:58  Aldebaran 4.3°S of Moon
    05  16:50  Jupiter 0.9°N of Moon: Occn.
    08  03:33  LAST QUARTER MOON 
    11  18:52  Regulus 6.0°N of Moon
    12  15:10  Venus 6.3°N of Moon
    15  08:02  NEW MOON 
    16  21:02  Moon at Perigee: 360673 km
    16  21:43  Mercury 1.3°S of Moon
    17  14:27  Moon at Ascending Node 
    18  09:06  Mars 2.0°S of Moon
    18  10:50  Antares 5.8°S of Moon
    20  16:07  Mars 3.5°N of Antares
    21  00     Orionid Meteor Shower
    21  23:32  FIRST QUARTER MOON 
    25  04     Saturn in Conjunction with Sun 
    26  18     Mercury at Greatest Elong: 24.1°E
    29  15:50  FULL MOON 
    31  06:36  Moon at Descending Node 
    31  14     Venus at Perihelion 

Nov 01  11:30  Moon at Apogee: 406050 km
    01  11:49  Aldebaran 4.2°S of Moon
    01  20:58  Jupiter 0.9°N of Moon: Occn.
    05  01     S Taurid Meteor Shower
    06  10:32  Mercury 3.0°N of Antares
    06  20:36  LAST QUARTER MOON 
    08  04:13  Regulus 6.1°N of Moon
    11  13:52  Venus 5.3°N of Moon
    11  21:42  Spica 0.8°N of Moon
    12  00     N Taurid Meteor Shower
    13  18:08  NEW MOON 
    13  18:12  Total Solar Eclipse; mag=1.050
    14  00:37  Moon at Ascending Node 
    14  06:21  Moon at Perigee: 357361 km
    16  05:40  Mars 4.0°S of Moon
    16  21:22  Venus 3.6°N of Spica
    17  06     Leonid Meteor Shower
    17  12     Mercury at Inferior Conjunction 
    20  10:31  FIRST QUARTER MOON 
    20  23     Mercury at Perihelion 
    27  13:05  Moon at Descending Node 
    28  10:33  Pen. Lunar Eclipse; mag=0.915
    28  10:46  FULL MOON 
    28  15:35  Moon at Apogee: 406366 km
    28  18:06  Aldebaran 4.2°S of Moon
    28  20:46  Jupiter 0.6°N of Moon: Occn.

Dec 02  21     Jupiter at Opposition 
    04  19     Mercury at Greatest Elong: 20.6°W
    05  11:35  Regulus 6.1°N of Moon
    06  11:32  LAST QUARTER MOON 
    09  05     Mercury 6.3° of Venus
    09  08:04  Spica 0.8°N of Moon
    10  08:46  Saturn 4.0°N of Moon
    11  09:48  Venus 1.6°N of Moon
    11  11:57  Moon at Ascending Node 
    11  20:44  Mercury 1.1°N of Moon: Occn.
    12  19:14  Moon at Perigee: 357074 km
    13  01:18  Jupiter 4.7°N of Aldebaran
    13  04:42  NEW MOON 
    13  19     Geminid Meteor Shower
    18  05:57  Mercury 5.2°N of Antares
    20  01:19  FIRST QUARTER MOON 
    21  07:12  Winter Solstice 
    22  04     Ursid Meteor Shower
    23  23:19  Venus 5.5°N of Antares
    24  18:27  Moon at Descending Node 
    25  17:19  Moon at Apogee: 406101 km
    25  20:02  Jupiter 0.4°N of Moon: Occn.
    26  00:23  Aldebaran 4.2°S of Moon
    28  06:21  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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