2012 Calendar of Astronomical Events




    


2012 Phases of the Moon

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

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

Eastern 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     EST   Event
        (h:m)

Jan 01  01:15  FIRST QUARTER MOON 
    02  15:19  Moon at Apogee: 404580 km
    02  21:46  Jupiter 5.0°S of Moon
    04  02     Quadrantid Meteor Shower
    04  20     Earth at Perihelion: 0.98328 AU
    05  04:17  Pleiades 2.8°N of Moon
    06  02:43  Aldebaran 5.8°S of Moon
    06  09:30  Moon at Descending Node 
    09  02:30  FULL MOON 
    12  08:04  Regulus 5.9°N of Moon
    16  02:21  Spica 2.0°N of Moon
    16  04:08  LAST QUARTER MOON 
    16  14:07  Saturn 6.4°N of Moon
    17  16:28  Moon at Perigee: 369883 km
    18  01     Mercury at Aphelion 
    19  05:59  Antares 4.2°S of Moon
    19  13:26  Moon at Ascending Node 
    23  02:39  NEW MOON 
    30  09:38  Jupiter 4.5°S of Moon
    30  12:42  Moon at Apogee: 404325 km
    30  23:10  FIRST QUARTER MOON 

Feb 01  12:42  Pleiades 3.0°N of Moon
    02  11:22  Aldebaran 5.7°S of Moon
    02  15:02  Moon at Descending Node 
    07  04     Mercury at Superior Conjunction 
    07  16:54  FULL MOON 
    08  15:43  Regulus 5.8°N of Moon
    11  13:32  Moon at Perigee: 367920 km
    12  07:47  Spica 1.8°N of Moon
    12  20:08  Saturn 6.2°N of Moon
    14  12:04  LAST QUARTER MOON 
    15  11:35  Antares 4.4°S of Moon
    15  15:16  Moon at Ascending Node 
    15  19     Mars at Aphelion 
    19  15     Neptune in Conjunction with Sun 
    21  17:35  NEW MOON 
    25  16:44  Venus 3.3°S of Moon
    27  01:16  Jupiter 3.8°S of Moon
    27  09:01  Moon at Apogee: 404864 km
    28  20:46  Pleiades 3.3°N of Moon
    29  17:37  Moon at Descending Node 
    29  19:45  Aldebaran 5.4°S of Moon
    29  20:22  FIRST QUARTER MOON 

Mar 02  00     Mercury at Perihelion 
    03  14     Mars at Opposition 
    05  04     Mercury at Greatest Elong: 18.2°E
    07  01:36  Regulus 5.8°N of Moon
    08  04:40  FULL MOON 
    10  05:02  Moon at Perigee: 362401 km
    10  15:20  Spica 1.5°N of Moon
    11  02:00  Saturn 6.2°N of Moon
    13  15:41  Moon at Ascending Node 
    13  17:10  Antares 4.7°S of Moon
    14  20:25  LAST QUARTER MOON 
    20  00:15  Vernal Equinox 
    20  20     Venus at Perihelion 
    21  14     Mercury at Inferior Conjunction 
    22  09:37  NEW MOON 
    24  13     Uranus in Conjunction with Sun 
    25  18:57  Jupiter 3.1°S of Moon
    26  01:04  Moon at Apogee: 405780 km
    26  13:21  Venus 1.8°N of Moon
    27  02     Venus at Greatest Elong: 46.0°E
    27  03:56  Pleiades 3.5°N of Moon
    27  19:19  Moon at Descending Node 
    28  03:07  Aldebaran 5.2°S of Moon
    30  14:41  FIRST QUARTER MOON 

Apr 03  08:18  Venus 0.4°S of Pleiades
    03  12:10  Regulus 5.9°N of Moon
    06  14:19  FULL MOON 
    07  01:24  Spica 1.5°N of Moon
    07  09:07  Saturn 6.3°N of Moon
    07  11:59  Moon at Perigee: 358314 km
    09  19:47  Moon at Ascending Node 
    10  00:54  Antares 4.9°S of Moon
    13  05:50  LAST QUARTER MOON 
    15  13     Saturn at Opposition 
    15  21:18  Mars 0.7°N of Regulus
    18  12     Mercury at Greatest Elong: 27.5°W
    21  02:18  NEW MOON 
    22  00     Lyrid Meteor Shower
    22  08:49  Moon at Apogee: 406422 km
    23  10:15  Pleiades 3.6°N of Moon
    23  22:43  Moon at Descending Node 
    24  09:27  Aldebaran 5.0°S of Moon
    24  21:21  Venus 5.7°N of Moon
    29  04:58  FIRST QUARTER MOON 
    30  21:31  Regulus 6.1°N of Moon

May 04  12:26  Spica 1.5°N of Moon
    04  13     Eta-Aquarid Meteor Shower
    04  17:04  Saturn 6.4°N of Moon
    05  22:33  Moon at Perigee: 356954 km
    05  22:35  FULL MOON 
    07  04:43  Moon at Ascending Node 
    07  10:57  Antares 5.0°S of Moon
    12  16:47  LAST QUARTER MOON 
    13  08     Jupiter in Conjunction with Sun 
    19  11:13  Moon at Apogee: 406451 km
    20  18:47  NEW MOON 
    20  18:53  Annular Solar Eclipse; mag=0.944
    21  04:20  Moon at Descending Node 
    22  15:52  Venus 4.7°N of Moon
    27  06     Mercury at Superior Conjunction 
    28  04:43  Regulus 6.2°N of Moon
    28  15:16  FIRST QUARTER MOON 
    29  00     Mercury at Perihelion 
    31  22:24  Spica 1.5°N of Moon

Jun 01  00:45  Saturn 6.5°N of Moon
    03  08:19  Moon at Perigee: 358483 km
    03  15:38  Moon at Ascending Node 
    03  21:51  Antares 5.0°S of Moon
    04  06:03  Partial Lunar Eclipse; mag=0.370
    04  06:12  FULL MOON 
    05  20     Venus at Inferior Conjunction 
    11  04:30  Jupiter 4.7°S of Pleiades
    11  05:41  LAST QUARTER MOON 
    15  20:24  Moon at Apogee: 405791 km
    16  22:34  Pleiades 3.6°N of Moon
    17  03:23  Jupiter 1.1°S of Moon: Occn.
    17  10:43  Moon at Descending Node 
    17  19:47  Venus 2.1°S of Moon
    19  10:02  NEW MOON 
    20  12:50  Mercury 4.9°S of Pollux
    20  18:08  Summer Solstice 
    21  05:33  Venus 2.2°N of Aldebaran
    24  10:18  Regulus 6.1°N of Moon
    26  10:02  Mars 5.8°N of Moon
    26  22:30  FIRST QUARTER MOON 
    28  06:04  Spica 1.4°N of Moon
    28  07:40  Saturn 6.3°N of Moon
    30  21     Mercury at Greatest Elong: 25.7°E

Date     EST   Event
        (h:m)

Jul 01  00:45  Moon at Ascending Node 
    01  07:42  Antares 5.0°S of Moon
    01  13:01  Moon at Perigee: 362363 km
    02  09:57  Mercury 1.6°S of Beehive
    03  13:52  FULL MOON 
    04  23     Earth at Aphelion: 1.01668 AU
    08  23:13  Venus 0.9°N of Aldebaran
    10  20:48  LAST QUARTER MOON 
    11  05     Venus at Aphelion 
    11  23     Mercury at Aphelion 
    13  11:47  Moon at Apogee: 404783 km
    14  05:34  Pleiades 3.7°N of Moon
    14  15:55  Moon at Descending Node 
    14  22:02  Jupiter 0.5°S of Moon: Occn.
    15  04:40  Aldebaran 4.9°S of Moon
    15  10:29  Venus 3.8°S of Moon
    18  23:24  NEW MOON 
    21  15:52  Regulus 5.9°N of Moon
    24  17:07  Mars 4.2°N of Moon
    25  11:43  Spica 1.2°N of Moon
    25  14:29  Saturn 6.0°N of Moon
    26  03:56  FIRST QUARTER MOON 
    27  15     Delta-Aquarid Meteor Shower
    28  05:34  Moon at Ascending Node 
    28  15     Mercury at Inferior Conjunction 
    28  15:21  Antares 5.2°S of Moon
    29  03:30  Moon at Perigee: 367318 km
    29  06:45  Jupiter 4.6°N of Aldebaran

Aug 01  22:27  FULL MOON 
    02  08:36  Saturn 4.0°N of Spica
    09  13:55  LAST QUARTER MOON 
    10  05:52  Moon at Apogee: 404125 km
    10  13:12  Pleiades 3.9°N of Moon
    10  19:04  Moon at Descending Node 
    11  12:25  Aldebaran 4.8°S of Moon
    11  15:25  Jupiter 0.1°N of Moon: Occn.
    12  07     Perseid Meteor Shower
    13  14:41  Venus 0.6°S of Moon: Occn.
    13  17:45  Mars 1.6°N of Spica
    15  05     Venus at Greatest Elong: 45.8°W
    16  00:06  Mercury 3.6°N of Moon
    16  07     Mercury at Greatest Elong: 18.7°W
    17  10:55  NEW MOON 
    18  10:33  Mercury 2.1°S of Beehive
    21  17:04  Spica 1.0°N of Moon
    21  22:43  Saturn 5.5°N of Moon
    22  02:50  Mars 2.3°N of Moon
    23  14:39  Moon at Perigee: 369731 km
    24  06     Neptune at Opposition 
    24  06:38  Moon at Ascending Node 
    24  08:54  FIRST QUARTER MOON 
    24  21:02  Antares 5.4°S of Moon
    24  23     Mercury at Perihelion 
    31  08:58  FULL MOON 

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

Oct 01  05:56  Mercury 1.5°N of Spica
    02  22:35  Venus 0.1°S of Regulus
    04  00:15  Moon at Descending Node 
    04  19:43  Moon at Apogee: 405162 km
    05  03     Mercury 3.2° of Saturn
    05  03:58  Aldebaran 4.3°S of Moon
    05  15:50  Jupiter 0.9°N of Moon: Occn.
    08  02:33  LAST QUARTER MOON 
    11  17:52  Regulus 6.0°N of Moon
    12  14:10  Venus 6.3°N of Moon
    15  07:02  NEW MOON 
    16  20:02  Moon at Perigee: 360673 km
    16  20:43  Mercury 1.3°S of Moon
    17  13:27  Moon at Ascending Node 
    18  08:06  Mars 2.0°S of Moon
    18  09:50  Antares 5.8°S of Moon
    20  15:07  Mars 3.5°N of Antares
    20  23     Orionid Meteor Shower
    21  22:32  FIRST QUARTER MOON 
    25  03     Saturn in Conjunction with Sun 
    26  17     Mercury at Greatest Elong: 24.1°E
    29  14:50  FULL MOON 
    31  05:36  Moon at Descending Node 
    31  13     Venus at Perihelion 

Nov 01  10:30  Moon at Apogee: 406050 km
    01  10:49  Aldebaran 4.2°S of Moon
    01  19:58  Jupiter 0.9°N of Moon: Occn.
    05  00     S Taurid Meteor Shower
    06  09:32  Mercury 3.0°N of Antares
    06  19:36  LAST QUARTER MOON 
    08  03:13  Regulus 6.1°N of Moon
    11  12:52  Venus 5.3°N of Moon
    11  20:42  Spica 0.8°N of Moon
    11  23     N Taurid Meteor Shower
    13  17:08  NEW MOON 
    13  17:12  Total Solar Eclipse; mag=1.050
    13  23:37  Moon at Ascending Node 
    14  05:21  Moon at Perigee: 357361 km
    16  04:40  Mars 4.0°S of Moon
    16  20:22  Venus 3.6°N of Spica
    17  05     Leonid Meteor Shower
    17  11     Mercury at Inferior Conjunction 
    20  09:31  FIRST QUARTER MOON 
    20  22     Mercury at Perihelion 
    27  12:05  Moon at Descending Node 
    28  09:33  Pen. Lunar Eclipse; mag=0.915
    28  09:46  FULL MOON 
    28  14:35  Moon at Apogee: 406366 km
    28  17:06  Aldebaran 4.2°S of Moon
    28  19:46  Jupiter 0.6°N of Moon: Occn.

Dec 02  20     Jupiter at Opposition 
    04  18     Mercury at Greatest Elong: 20.6°W
    05  10:35  Regulus 6.1°N of Moon
    06  10:32  LAST QUARTER MOON 
    09  04     Mercury 6.3° of Venus
    09  07:04  Spica 0.8°N of Moon
    10  07:46  Saturn 4.0°N of Moon
    11  08:48  Venus 1.6°N of Moon
    11  10:57  Moon at Ascending Node 
    11  19:44  Mercury 1.1°N of Moon: Occn.
    12  18:14  Moon at Perigee: 357074 km
    13  00:18  Jupiter 4.7°N of Aldebaran
    13  03:42  NEW MOON 
    13  18     Geminid Meteor Shower
    18  04:57  Mercury 5.2°N of Antares
    20  00:19  FIRST QUARTER MOON 
    21  06:12  Winter Solstice 
    22  03     Ursid Meteor Shower
    23  22:19  Venus 5.5°N of Antares
    24  17:27  Moon at Descending Node 
    25  16:19  Moon at Apogee: 406101 km
    25  19:02  Jupiter 0.4°N of Moon: Occn.
    25  23:23  Aldebaran 4.2°S of Moon
    28  05:21  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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