2012 Calendar of Astronomical Events




    


2012 Phases of the Moon

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

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

Alaska 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     AKST   Even
        (h:m)

Jan 02  11:19  Moon at Apogee: 404580 km
    02  17:46  Jupiter 5.0°S of Moon
    03  22     Quadrantid Meteor Shower
    04  16     Earth at Perihelion: 0.98328 AU
    05  00:17  Pleiades 2.8°N of Moon
    05  22:43  Aldebaran 5.8°S of Moon
    06  05:30  Moon at Descending Node 
    08  22:30  FULL MOON 
    12  04:04  Regulus 5.9°N of Moon
    15  22:21  Spica 2.0°N of Moon
    16  00:08  LAST QUARTER MOON 
    16  10:07  Saturn 6.4°N of Moon
    17  12:28  Moon at Perigee: 369883 km
    17  21     Mercury at Aphelion 
    19  01:59  Antares 4.2°S of Moon
    19  09:26  Moon at Ascending Node 
    22  22:39  NEW MOON 
    30  05:38  Jupiter 4.5°S of Moon
    30  08:42  Moon at Apogee: 404325 km
    30  19:10  FIRST QUARTER MOON 

Feb 01  08:42  Pleiades 3.0°N of Moon
    02  07:22  Aldebaran 5.7°S of Moon
    02  11:02  Moon at Descending Node 
    07  00     Mercury at Superior Conjunction 
    07  12:54  FULL MOON 
    08  11:43  Regulus 5.8°N of Moon
    11  09:32  Moon at Perigee: 367920 km
    12  03:47  Spica 1.8°N of Moon
    12  16:08  Saturn 6.2°N of Moon
    14  08:04  LAST QUARTER MOON 
    15  07:35  Antares 4.4°S of Moon
    15  11:16  Moon at Ascending Node 
    15  15     Mars at Aphelion 
    19  11     Neptune in Conjunction with Sun 
    21  13:35  NEW MOON 
    25  12:44  Venus 3.3°S of Moon
    26  21:16  Jupiter 3.8°S of Moon
    27  05:01  Moon at Apogee: 404864 km
    28  16:46  Pleiades 3.3°N of Moon
    29  13:37  Moon at Descending Node 
    29  15:45  Aldebaran 5.4°S of Moon
    29  16:22  FIRST QUARTER MOON 

Mar 01  20     Mercury at Perihelion 
    03  10     Mars at Opposition 
    05  00     Mercury at Greatest Elong: 18.2°E
    06  21:36  Regulus 5.8°N of Moon
    08  00:40  FULL MOON 
    10  01:02  Moon at Perigee: 362401 km
    10  11:20  Spica 1.5°N of Moon
    10  22:00  Saturn 6.2°N of Moon
    13  11:41  Moon at Ascending Node 
    13  13:10  Antares 4.7°S of Moon
    14  16:25  LAST QUARTER MOON 
    19  20:15  Vernal Equinox 
    20  16     Venus at Perihelion 
    21  10     Mercury at Inferior Conjunction 
    22  05:37  NEW MOON 
    24  09     Uranus in Conjunction with Sun 
    25  14:57  Jupiter 3.1°S of Moon
    25  21:04  Moon at Apogee: 405780 km
    26  09:21  Venus 1.8°N of Moon
    26  22     Venus at Greatest Elong: 46.0°E
    26  23:56  Pleiades 3.5°N of Moon
    27  15:19  Moon at Descending Node 
    27  23:07  Aldebaran 5.2°S of Moon
    30  10:41  FIRST QUARTER MOON 

Apr 03  04:18  Venus 0.4°S of Pleiades
    03  08:10  Regulus 5.9°N of Moon
    06  10:19  FULL MOON 
    06  21:24  Spica 1.5°N of Moon
    07  05:07  Saturn 6.3°N of Moon
    07  07:59  Moon at Perigee: 358314 km
    09  15:47  Moon at Ascending Node 
    09  20:54  Antares 4.9°S of Moon
    13  01:50  LAST QUARTER MOON 
    15  09     Saturn at Opposition 
    15  17:18  Mars 0.7°N of Regulus
    18  08     Mercury at Greatest Elong: 27.5°W
    20  22:18  NEW MOON 
    21  20     Lyrid Meteor Shower
    22  04:49  Moon at Apogee: 406422 km
    23  06:15  Pleiades 3.6°N of Moon
    23  18:43  Moon at Descending Node 
    24  05:27  Aldebaran 5.0°S of Moon
    24  17:21  Venus 5.7°N of Moon
    29  00:58  FIRST QUARTER MOON 
    30  17:31  Regulus 6.1°N of Moon

May 04  08:26  Spica 1.5°N of Moon
    04  09     Eta-Aquarid Meteor Shower
    04  13:04  Saturn 6.4°N of Moon
    05  18:33  Moon at Perigee: 356954 km
    05  18:35  FULL MOON 
    07  00:43  Moon at Ascending Node 
    07  06:57  Antares 5.0°S of Moon
    12  12:47  LAST QUARTER MOON 
    13  04     Jupiter in Conjunction with Sun 
    19  07:13  Moon at Apogee: 406451 km
    20  14:47  NEW MOON 
    20  14:53  Annular Solar Eclipse; mag=0.944
    21  00:20  Moon at Descending Node 
    22  11:52  Venus 4.7°N of Moon
    27  02     Mercury at Superior Conjunction 
    28  00:43  Regulus 6.2°N of Moon
    28  11:16  FIRST QUARTER MOON 
    28  20     Mercury at Perihelion 
    31  18:24  Spica 1.5°N of Moon
    31  20:45  Saturn 6.5°N of Moon

Jun 03  04:19  Moon at Perigee: 358483 km
    03  11:38  Moon at Ascending Node 
    03  17:51  Antares 5.0°S of Moon
    04  02:03  Partial Lunar Eclipse; mag=0.370
    04  02:12  FULL MOON 
    05  16     Venus at Inferior Conjunction 
    11  00:30  Jupiter 4.7°S of Pleiades
    11  01:41  LAST QUARTER MOON 
    15  16:24  Moon at Apogee: 405791 km
    16  18:34  Pleiades 3.6°N of Moon
    16  23:23  Jupiter 1.1°S of Moon: Occn.
    17  06:43  Moon at Descending Node 
    17  15:47  Venus 2.1°S of Moon
    19  06:02  NEW MOON 
    20  08:50  Mercury 4.9°S of Pollux
    20  14:08  Summer Solstice 
    21  01:33  Venus 2.2°N of Aldebaran
    24  06:18  Regulus 6.1°N of Moon
    26  06:02  Mars 5.8°N of Moon
    26  18:30  FIRST QUARTER MOON 
    28  02:04  Spica 1.4°N of Moon
    28  03:40  Saturn 6.3°N of Moon
    30  17     Mercury at Greatest Elong: 25.7°E
    30  20:45  Moon at Ascending Node 

Date     AKST   Even
        (h:m)

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

Aug 01  18:27  FULL MOON 
    02  04:36  Saturn 4.0°N of Spica
    09  09:55  LAST QUARTER MOON 
    10  01:52  Moon at Apogee: 404125 km
    10  09:12  Pleiades 3.9°N of Moon
    10  15:04  Moon at Descending Node 
    11  08:25  Aldebaran 4.8°S of Moon
    11  11:25  Jupiter 0.1°N of Moon: Occn.
    12  03     Perseid Meteor Shower
    13  10:41  Venus 0.6°S of Moon: Occn.
    13  13:45  Mars 1.6°N of Spica
    15  01     Venus at Greatest Elong: 45.8°W
    15  20:06  Mercury 3.6°N of Moon
    16  03     Mercury at Greatest Elong: 18.7°W
    17  06:55  NEW MOON 
    18  06:33  Mercury 2.1°S of Beehive
    21  13:04  Spica 1.0°N of Moon
    21  18:43  Saturn 5.5°N of Moon
    21  22:50  Mars 2.3°N of Moon
    23  10:39  Moon at Perigee: 369731 km
    24  02     Neptune at Opposition 
    24  02:38  Moon at Ascending Node 
    24  04:54  FIRST QUARTER MOON 
    24  17:02  Antares 5.4°S of Moon
    24  19     Mercury at Perihelion 
    31  04:58  FULL MOON 

Sep 06  17:08  Moon at Descending Node 
    06  21:00  Moon at Apogee: 404296 km
    07  16:23  Aldebaran 4.5°S of Moon
    08  01:59  Jupiter 0.6°N of Moon: Occn.
    08  04:15  LAST QUARTER MOON 
    10  04     Mercury at Superior Conjunction 
    12  08:09  Venus 3.7°N of Moon
    12  23:52  Venus 2.6°S of Beehive
    14  03:51  Regulus 5.9°N of Moon
    15  17:11  NEW MOON 
    17  20:05  Spica 0.8°N of Moon
    18  05:45  Saturn 5.0°N of Moon
    18  17:52  Moon at Perigee: 365749 km
    19  11:36  Mars 0.2°N of Moon: Occn.
    20  03:54  Moon at Ascending Node 
    20  22:30  Antares 5.6°S of Moon
    22  05:49  Autumnal Equinox 
    22  10:41  FIRST QUARTER MOON 
    28  22     Uranus at Opposition 
    29  18:19  FULL MOON 

Oct 01  01:56  Mercury 1.5°N of Spica
    02  18:35  Venus 0.1°S of Regulus
    03  20:15  Moon at Descending Node 
    04  15:43  Moon at Apogee: 405162 km
    04  23     Mercury 3.2° of Saturn
    04  23:58  Aldebaran 4.3°S of Moon
    05  11:50  Jupiter 0.9°N of Moon: Occn.
    07  22:33  LAST QUARTER MOON 
    11  13:52  Regulus 6.0°N of Moon
    12  10:10  Venus 6.3°N of Moon
    15  03:02  NEW MOON 
    16  16:02  Moon at Perigee: 360673 km
    16  16:43  Mercury 1.3°S of Moon
    17  09:27  Moon at Ascending Node 
    18  04:06  Mars 2.0°S of Moon
    18  05:50  Antares 5.8°S of Moon
    20  11:07  Mars 3.5°N of Antares
    20  19     Orionid Meteor Shower
    21  18:32  FIRST QUARTER MOON 
    24  23     Saturn in Conjunction with Sun 
    26  13     Mercury at Greatest Elong: 24.1°E
    29  10:50  FULL MOON 
    31  01:36  Moon at Descending Node 
    31  09     Venus at Perihelion 

Nov 01  06:30  Moon at Apogee: 406050 km
    01  06:49  Aldebaran 4.2°S of Moon
    01  15:58  Jupiter 0.9°N of Moon: Occn.
    04  20     S Taurid Meteor Shower
    06  05:32  Mercury 3.0°N of Antares
    06  15:36  LAST QUARTER MOON 
    07  23:13  Regulus 6.1°N of Moon
    11  08:52  Venus 5.3°N of Moon
    11  16:42  Spica 0.8°N of Moon
    11  19     N Taurid Meteor Shower
    13  13:08  NEW MOON 
    13  13:12  Total Solar Eclipse; mag=1.050
    13  19:37  Moon at Ascending Node 
    14  01:21  Moon at Perigee: 357361 km
    16  00:40  Mars 4.0°S of Moon
    16  16:22  Venus 3.6°N of Spica
    17  01     Leonid Meteor Shower
    17  07     Mercury at Inferior Conjunction 
    20  05:31  FIRST QUARTER MOON 
    20  18     Mercury at Perihelion 
    27  08:05  Moon at Descending Node 
    28  05:33  Pen. Lunar Eclipse; mag=0.915
    28  05:46  FULL MOON 
    28  10:35  Moon at Apogee: 406366 km
    28  13:06  Aldebaran 4.2°S of Moon
    28  15:46  Jupiter 0.6°N of Moon: Occn.

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