2012 Calendar of Astronomical Events




    


2012 Phases of the Moon

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

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

Hawaiian 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     HST   Event
        (h:m)

Jan 02  10:19  Moon at Apogee: 404580 km
    02  16:46  Jupiter 5.0°S of Moon
    03  21     Quadrantid Meteor Shower
    04  15     Earth at Perihelion: 0.98328 AU
    04  23:17  Pleiades 2.8°N of Moon
    05  21:43  Aldebaran 5.8°S of Moon
    06  04:30  Moon at Descending Node 
    08  21:30  FULL MOON 
    12  03:04  Regulus 5.9°N of Moon
    15  21:21  Spica 2.0°N of Moon
    15  23:08  LAST QUARTER MOON 
    16  09:07  Saturn 6.4°N of Moon
    17  11:28  Moon at Perigee: 369883 km
    17  20     Mercury at Aphelion 
    19  00:59  Antares 4.2°S of Moon
    19  08:26  Moon at Ascending Node 
    22  21:39  NEW MOON 
    30  04:38  Jupiter 4.5°S of Moon
    30  07:42  Moon at Apogee: 404325 km
    30  18:10  FIRST QUARTER MOON 

Feb 01  07:42  Pleiades 3.0°N of Moon
    02  06:22  Aldebaran 5.7°S of Moon
    02  10:02  Moon at Descending Node 
    06  23     Mercury at Superior Conjunction 
    07  11:54  FULL MOON 
    08  10:43  Regulus 5.8°N of Moon
    11  08:32  Moon at Perigee: 367920 km
    12  02:47  Spica 1.8°N of Moon
    12  15:08  Saturn 6.2°N of Moon
    14  07:04  LAST QUARTER MOON 
    15  06:35  Antares 4.4°S of Moon
    15  10:16  Moon at Ascending Node 
    15  14     Mars at Aphelion 
    19  10     Neptune in Conjunction with Sun 
    21  12:35  NEW MOON 
    25  11:44  Venus 3.3°S of Moon
    26  20:16  Jupiter 3.8°S of Moon
    27  04:01  Moon at Apogee: 404864 km
    28  15:46  Pleiades 3.3°N of Moon
    29  12:37  Moon at Descending Node 
    29  14:45  Aldebaran 5.4°S of Moon
    29  15:22  FIRST QUARTER MOON 

Mar 01  19     Mercury at Perihelion 
    03  09     Mars at Opposition 
    04  23     Mercury at Greatest Elong: 18.2°E
    06  20:36  Regulus 5.8°N of Moon
    07  23:40  FULL MOON 
    10  00:02  Moon at Perigee: 362401 km
    10  10:20  Spica 1.5°N of Moon
    10  21:00  Saturn 6.2°N of Moon
    13  10:41  Moon at Ascending Node 
    13  12:10  Antares 4.7°S of Moon
    14  15:25  LAST QUARTER MOON 
    19  19:15  Vernal Equinox 
    20  15     Venus at Perihelion 
    21  09     Mercury at Inferior Conjunction 
    22  04:37  NEW MOON 
    24  08     Uranus in Conjunction with Sun 
    25  13:57  Jupiter 3.1°S of Moon
    25  20:04  Moon at Apogee: 405780 km
    26  08:21  Venus 1.8°N of Moon
    26  21     Venus at Greatest Elong: 46.0°E
    26  22:56  Pleiades 3.5°N of Moon
    27  14:19  Moon at Descending Node 
    27  22:07  Aldebaran 5.2°S of Moon
    30  09:41  FIRST QUARTER MOON 

Apr 03  03:18  Venus 0.4°S of Pleiades
    03  07:10  Regulus 5.9°N of Moon
    06  09:19  FULL MOON 
    06  20:24  Spica 1.5°N of Moon
    07  04:07  Saturn 6.3°N of Moon
    07  06:59  Moon at Perigee: 358314 km
    09  14:47  Moon at Ascending Node 
    09  19:54  Antares 4.9°S of Moon
    13  00:50  LAST QUARTER MOON 
    15  08     Saturn at Opposition 
    15  16:18  Mars 0.7°N of Regulus
    18  07     Mercury at Greatest Elong: 27.5°W
    20  21:18  NEW MOON 
    21  19     Lyrid Meteor Shower
    22  03:49  Moon at Apogee: 406422 km
    23  05:15  Pleiades 3.6°N of Moon
    23  17:43  Moon at Descending Node 
    24  04:27  Aldebaran 5.0°S of Moon
    24  16:21  Venus 5.7°N of Moon
    28  23:58  FIRST QUARTER MOON 
    30  16:31  Regulus 6.1°N of Moon

May 04  07:26  Spica 1.5°N of Moon
    04  08     Eta-Aquarid Meteor Shower
    04  12:04  Saturn 6.4°N of Moon
    05  17:33  Moon at Perigee: 356954 km
    05  17:35  FULL MOON 
    06  23:43  Moon at Ascending Node 
    07  05:57  Antares 5.0°S of Moon
    12  11:47  LAST QUARTER MOON 
    13  03     Jupiter in Conjunction with Sun 
    19  06:13  Moon at Apogee: 406451 km
    20  13:47  NEW MOON 
    20  13:53  Annular Solar Eclipse; mag=0.944
    20  23:20  Moon at Descending Node 
    22  10:52  Venus 4.7°N of Moon
    27  01     Mercury at Superior Conjunction 
    27  23:43  Regulus 6.2°N of Moon
    28  10:16  FIRST QUARTER MOON 
    28  19     Mercury at Perihelion 
    31  17:24  Spica 1.5°N of Moon
    31  19:45  Saturn 6.5°N of Moon

Jun 03  03:19  Moon at Perigee: 358483 km
    03  10:38  Moon at Ascending Node 
    03  16:51  Antares 5.0°S of Moon
    04  01:03  Partial Lunar Eclipse; mag=0.370
    04  01:12  FULL MOON 
    05  15     Venus at Inferior Conjunction 
    10  23:30  Jupiter 4.7°S of Pleiades
    11  00:41  LAST QUARTER MOON 
    15  15:24  Moon at Apogee: 405791 km
    16  17:34  Pleiades 3.6°N of Moon
    16  22:23  Jupiter 1.1°S of Moon: Occn.
    17  05:43  Moon at Descending Node 
    17  14:47  Venus 2.1°S of Moon
    19  05:02  NEW MOON 
    20  07:50  Mercury 4.9°S of Pollux
    20  13:08  Summer Solstice 
    21  00:33  Venus 2.2°N of Aldebaran
    24  05:18  Regulus 6.1°N of Moon
    26  05:02  Mars 5.8°N of Moon
    26  17:30  FIRST QUARTER MOON 
    28  01:04  Spica 1.4°N of Moon
    28  02:40  Saturn 6.3°N of Moon
    30  16     Mercury at Greatest Elong: 25.7°E
    30  19:45  Moon at Ascending Node 

Date     HST   Event
        (h:m)

Jul 01  02:42  Antares 5.0°S of Moon
    01  08:01  Moon at Perigee: 362363 km
    02  04:57  Mercury 1.6°S of Beehive
    03  08:52  FULL MOON 
    04  18     Earth at Aphelion: 1.01668 AU
    08  18:13  Venus 0.9°N of Aldebaran
    10  15:48  LAST QUARTER MOON 
    11  00     Venus at Aphelion 
    11  18     Mercury at Aphelion 
    13  06:47  Moon at Apogee: 404783 km
    14  00:34  Pleiades 3.7°N of Moon
    14  10:55  Moon at Descending Node 
    14  17:02  Jupiter 0.5°S of Moon: Occn.
    14  23:40  Aldebaran 4.9°S of Moon
    15  05:29  Venus 3.8°S of Moon
    18  18:24  NEW MOON 
    21  10:52  Regulus 5.9°N of Moon
    24  12:07  Mars 4.2°N of Moon
    25  06:43  Spica 1.2°N of Moon
    25  09:29  Saturn 6.0°N of Moon
    25  22:56  FIRST QUARTER MOON 
    27  10     Delta-Aquarid Meteor Shower
    28  00:34  Moon at Ascending Node 
    28  10     Mercury at Inferior Conjunction 
    28  10:21  Antares 5.2°S of Moon
    28  22:30  Moon at Perigee: 367318 km
    29  01:45  Jupiter 4.6°N of Aldebaran

Aug 01  17:27  FULL MOON 
    02  03:36  Saturn 4.0°N of Spica
    09  08:55  LAST QUARTER MOON 
    10  00:52  Moon at Apogee: 404125 km
    10  08:12  Pleiades 3.9°N of Moon
    10  14:04  Moon at Descending Node 
    11  07:25  Aldebaran 4.8°S of Moon
    11  10:25  Jupiter 0.1°N of Moon: Occn.
    12  02     Perseid Meteor Shower
    13  09:41  Venus 0.6°S of Moon: Occn.
    13  12:45  Mars 1.6°N of Spica
    15  00     Venus at Greatest Elong: 45.8°W
    15  19:06  Mercury 3.6°N of Moon
    16  02     Mercury at Greatest Elong: 18.7°W
    17  05:55  NEW MOON 
    18  05:33  Mercury 2.1°S of Beehive
    21  12:04  Spica 1.0°N of Moon
    21  17:43  Saturn 5.5°N of Moon
    21  21:50  Mars 2.3°N of Moon
    23  09:39  Moon at Perigee: 369731 km
    24  01     Neptune at Opposition 
    24  01:38  Moon at Ascending Node 
    24  03:54  FIRST QUARTER MOON 
    24  16:02  Antares 5.4°S of Moon
    24  18     Mercury at Perihelion 
    31  03:58  FULL MOON 

Sep 06  16:08  Moon at Descending Node 
    06  20:00  Moon at Apogee: 404296 km
    07  15:23  Aldebaran 4.5°S of Moon
    08  00:59  Jupiter 0.6°N of Moon: Occn.
    08  03:15  LAST QUARTER MOON 
    10  03     Mercury at Superior Conjunction 
    12  07:09  Venus 3.7°N of Moon
    12  22:52  Venus 2.6°S of Beehive
    14  02:51  Regulus 5.9°N of Moon
    15  16:11  NEW MOON 
    17  19:05  Spica 0.8°N of Moon
    18  04:45  Saturn 5.0°N of Moon
    18  16:52  Moon at Perigee: 365749 km
    19  10:36  Mars 0.2°N of Moon: Occn.
    20  02:54  Moon at Ascending Node 
    20  21:30  Antares 5.6°S of Moon
    22  04:49  Autumnal Equinox 
    22  09:41  FIRST QUARTER MOON 
    28  21     Uranus at Opposition 
    29  17:19  FULL MOON 

Oct 01  00:56  Mercury 1.5°N of Spica
    02  17:35  Venus 0.1°S of Regulus
    03  19:15  Moon at Descending Node 
    04  14:43  Moon at Apogee: 405162 km
    04  22     Mercury 3.2° of Saturn
    04  22:58  Aldebaran 4.3°S of Moon
    05  10:50  Jupiter 0.9°N of Moon: Occn.
    07  21:33  LAST QUARTER MOON 
    11  12:52  Regulus 6.0°N of Moon
    12  09:10  Venus 6.3°N of Moon
    15  02:02  NEW MOON 
    16  15:02  Moon at Perigee: 360673 km
    16  15:43  Mercury 1.3°S of Moon
    17  08:27  Moon at Ascending Node 
    18  03:06  Mars 2.0°S of Moon
    18  04:50  Antares 5.8°S of Moon
    20  10:07  Mars 3.5°N of Antares
    20  18     Orionid Meteor Shower
    21  17:32  FIRST QUARTER MOON 
    24  22     Saturn in Conjunction with Sun 
    26  12     Mercury at Greatest Elong: 24.1°E
    29  09:50  FULL MOON 
    31  00:36  Moon at Descending Node 
    31  08     Venus at Perihelion 

Nov 01  05:30  Moon at Apogee: 406050 km
    01  05:49  Aldebaran 4.2°S of Moon
    01  14:58  Jupiter 0.9°N of Moon: Occn.
    04  19     S Taurid Meteor Shower
    06  04:32  Mercury 3.0°N of Antares
    06  14:36  LAST QUARTER MOON 
    07  22:13  Regulus 6.1°N of Moon
    11  07:52  Venus 5.3°N of Moon
    11  15:42  Spica 0.8°N of Moon
    11  18     N Taurid Meteor Shower
    13  12:08  NEW MOON 
    13  12:12  Total Solar Eclipse; mag=1.050
    13  18:37  Moon at Ascending Node 
    14  00:21  Moon at Perigee: 357361 km
    15  23:40  Mars 4.0°S of Moon
    16  15:22  Venus 3.6°N of Spica
    17  00     Leonid Meteor Shower
    17  06     Mercury at Inferior Conjunction 
    20  04:31  FIRST QUARTER MOON 
    20  17     Mercury at Perihelion 
    27  07:05  Moon at Descending Node 
    28  04:33  Pen. Lunar Eclipse; mag=0.915
    28  04:46  FULL MOON 
    28  09:35  Moon at Apogee: 406366 km
    28  12:06  Aldebaran 4.2°S of Moon
    28  14:46  Jupiter 0.6°N of Moon: Occn.

Dec 02  15     Jupiter at Opposition 
    04  13     Mercury at Greatest Elong: 20.6°W
    05  05:35  Regulus 6.1°N of Moon
    06  05:32  LAST QUARTER MOON 
    08  23     Mercury 6.3° of Venus
    09  02:04  Spica 0.8°N of Moon
    10  02:46  Saturn 4.0°N of Moon
    11  03:48  Venus 1.6°N of Moon
    11  05:57  Moon at Ascending Node 
    11  14:44  Mercury 1.1°N of Moon: Occn.
    12  13:14  Moon at Perigee: 357074 km
    12  19:18  Jupiter 4.7°N of Aldebaran
    12  22:42  NEW MOON 
    13  13     Geminid Meteor Shower
    17  23:57  Mercury 5.2°N of Antares
    19  19:19  FIRST QUARTER MOON 
    21  01:12  Winter Solstice 
    21  22     Ursid Meteor Shower
    23  17:19  Venus 5.5°N of Antares
    24  12:27  Moon at Descending Node 
    25  11:19  Moon at Apogee: 406101 km
    25  14:02  Jupiter 0.4°N of Moon: Occn.
    25  18:23  Aldebaran 4.2°S of Moon
    28  00:21  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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