2012Calendar of Astronomical Events

    

2012Phases of the Moon

Hawaiian Standard Time

The following table gives the date and time of the Moon's phases for the year. The times listed are for Hawaiian Standard Time(Greenwich Mean Time - 10 hours).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.


2012Calendar of Astronomical Events

Hawaiian Standard Time

The following table gives the date and time of the important astronomical events for the year. The times listed are for Hawaiian Standard Time(Greenwich Mean Time - 10 hours).If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the calendar.

2012Calendar of Astronomical Events
Hawaiian Standard Time
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  11     Mars at Aphelion:  1.66598 AU    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     Venus 3.0°N of Jupiter    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 MoonMay 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 MoonJun 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     30  22     Venus 4.8°S of Jupiter
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 AldebaranAug 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  08     Mars 2.7°S of Saturn    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°S 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     26  19     Venus 0.5°S of Saturn    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°S 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     

Terms Used in Astronomical Events Calendar

  • Perihelion - instant when a planet is closest to the Sun
  • Aphelion - instant when a planet is furthest from the Sun
  • Perigee - instant when the Moon is closest to Earth
  • Apogee - instant when the Moon is furthest from Earth
  • Inferior Conjunction - instant when a planet (Mercury or Venus) passes between Earth and the Sun
  • Superior Conjunction - instant when a planet (Mercury or Venus) passes on the opposite side of the Sun from Earth
  • Greatest Elongation - the maximum angular separation between the Sun and the planet (Mercury or Venus) 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 - instant when a planet appears opposite the Sun as seen from Earth
  • Conjunction - instant when a planet appears closest the Sun as seen from Earth
  • Occultation - the Moon occults or eclipses a star or planet
  • Ascending Node - point where the Moon crosses from the southern to northern portion of its orbit
  • Descending Node - point where the Moon crosses from the northern to the southern portion of its orbit

  • Aldebaran - bright star in the constellation Taurus
  • Pollux - bright star in the constellation Gemini
  • Regulus - bright star in the constellation Leo
  • Spica - bright star in the constellation Virgo
  • Antares - bright star in the constellation Scorpius
  • Pleiades - bright star cluster in the constellation Taurus
  • Beehive - bright star cluster in the constellation Cancer

Calendars of Astronomical Events: 2011 to 2020

The Americas

Below are links to calendars of astronomical events from 2011 to 2020 for seven time zones in the Americas.
Choose a time zone and click on a year to get a calendar of astronomical events for that year.

Calendars of Astronomical Events - The Americas
AST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
EST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
CST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
MST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
PST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
AKST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
HST 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

        Time Zones Abbreviations
        • AST = Atlantic Standard Time (= GMT - 4 hours)
        • EST = Eastern Standard Time (= GMT - 5 hours)
        • CST = Central Standard Time (= GMT - 6 hours)
        • MST = Mountain Standard Time (= GMT - 7 hours)
        • PST = Pacific Standard Time (= GMT - 8 hours)
        • AKST = Alaskan Standard Time (= GMT - 9 hours)
        • HST = Hawaiian Standard Time (= GMT - 10 hours)
          (where GMT = Greenwich Mean Time)

A time zone may have a different name in different countries. Note the difference in hours between a given time zone and Greenwich Mean Time to help in identification.

For other years and other time zones, visit: Calendars of Astronomical Events.

Accuracy of the Astronomical Events Calendars

The goal of the Astronomical Events Calendars is to present a wide range of solar system phenomena with reasonable accuracy. In general, events listed to the nearest hour are accurate to ± 30 minutes.Events listed with a precision in hours and minutes (i.e., hh:mm) are typically accurate to ± 5 minutes or less.

The following table gives a more detailed breakdown of the accuracy of times for various astronomical events.

Accuracy of the Astronomical Events Calendars
Solstice/Equinox (Earth) ± 0.5 minute
Aphelion/Perihelion (Earth) ± 30 minutes; ± 0.00001 AU
Solar and Lunar Eclipses ± 0.5 minute
Phases of the Moon ± 0.5 minute
Moon at Nodes ± 2 minutes
Apogee/Perigee of Moon ± 5 minutes; ± 5 kilometers
Conjunctions of Moon with Star or Planet ± 10 minutes
Conjunctions of Planet with Planet ± 3 hours
Inferior/Superior Conjunctions (Mercury & Venus) ± 30 minutes
Greatest Elongation (Mercury & Venus) ± 30 minutes
Opposition/Conjunction (Outer Planets) ± 3 hours
Aphelion/Perihelion of Planets ± 30 minutes

Acknowledgements

All calculations are by Fred Espenak and he assumes full responsibility for their accuracy. Algorithms used in predicting many of the astronomical events 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:


Return to: Calendars of Astronomical Events

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