2013 Calendar of Astronomical Events




    


2013 Phases of the Moon

Mountain 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.

2013 Phases of the Moon
Mountain Standard Time
New Moon First Quarter Full Moon Last Quarter
--- Jan 4 20:58
Jan 11 12:44 Jan 18 16:45 Jan 26 21:38 Feb 3 06:56
Feb 10 00:20 Feb 17 13:31 Feb 25 13:26 Mar 4 14:53
Mar 11 12:51 Mar 19 10:27 Mar 27 02:27 Apr 2 21:37
Apr 10 02:35 Apr 18 05:31 Apr 25 12:57 p May 2 04:14
May 9 17:29 A May 17 21:35 May 24 21:25 n May 31 11:58
Jun 8 08:56 Jun 16 10:24 Jun 23 04:32 Jun 29 21:54
Jul 8 00:14 Jul 15 20:18 Jul 22 11:15 Jul 29 10:43
Aug 6 14:51 Aug 14 03:56 Aug 20 18:45 Aug 28 02:35
Sep 5 04:36 Sep 12 10:08 Sep 19 04:13 Sep 26 20:56
Oct 4 17:35 Oct 11 16:02 Oct 18 16:38 n Oct 26 16:41
Nov 3 05:50 H Nov 9 22:57 Nov 17 08:16 Nov 25 12:28
Dec 2 17:22 Dec 9 08:12 Dec 17 02:28 Dec 25 06:48

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.



2013 Calendar of Astronomical Events

Mountain 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.

2013 Calendar of Astronomical Events
January - June July - December
Date     MST   Event
        (h:m)

Jan 01  14:13  Regulus 5.9°N of Moon
    01  17:59  Earth at Perihelion: 0.98329 
    03  07     Quadrantid Meteor Shower
    03  20     Mercury at Aphelion 
    04  20:58  LAST QUARTER MOON 
    05  12:54  Spica 0.6°N of Moon
    06  18:28  Saturn 3.7°N of Moon
    07  16:50  Moon at Ascending Node 
    08  15:55  Antares 5.9°S of Moon
    10  03:26  Moon at Perigee: 360048 km
    10  04:36  Venus 2.8°S of Moon
    11  12:44  NEW MOON 
    18  02     Mercury at Superior Conjunction 
    18  16:45  FIRST QUARTER MOON 
    20  18:19  Moon at Descending Node 
    21  19:57  Jupiter 0.5°N of Moon: Occn.
    22  03:52  Moon at Apogee: 405313 km
    22  04:13  Aldebaran 4.0°S of Moon
    24  05     Mars at Perihelion 
    26  21:38  FULL MOON 
    28  19:57  Regulus 5.8°N of Moon

Feb 01  18:25  Spica 0.3°N of Moon
    03  02:55  Saturn 3.5°N of Moon
    03  06:56  LAST QUARTER MOON 
    03  19:14  Moon at Ascending Node 
    04  23:39  Antares 6.1°S of Moon
    07  05:09  Moon at Perigee: 365314 km
    08  09     Mercury 0.3° of Mars
    10  00:20  NEW MOON 
    11  10:51  Mercury 5.2°S of Moon
    16  14     Mercury at Greatest Elong: 18.1°E
    16  19     Mercury at Perihelion 
    16  19:57  Moon at Descending Node 
    17  13:31  FIRST QUARTER MOON 
    18  04:31  Jupiter 0.9°N of Moon: Occn.
    18  11:49  Aldebaran 3.8°S of Moon
    18  23:30  Moon at Apogee: 404475 km
    20  19     Venus at Aphelion 
    21  00     Neptune in Conjunction with Sun 
    25  03:18  Regulus 5.7°N of Moon
    25  13:26  FULL MOON 
    28  23:56  Spica 0.1°N of Moon

Mar 02  08:21  Saturn 3.3°N of Moon
    02  19:30  Moon at Ascending Node 
    04  05:11  Antares 6.4°S of Moon
    04  06     Mercury at Inferior Conjunction 
    04  14:53  LAST QUARTER MOON 
    05  16:20  Moon at Perigee: 369954 km
    11  12:51  NEW MOON 
    15  23:15  Moon at Descending Node 
    17  18:16  Jupiter 1.5°N of Moon
    17  18:24  Jupiter 5.0°N of Aldebaran
    17  19:56  Aldebaran 3.5°S of Moon
    18  20:13  Moon at Apogee: 404262 km
    19  10:27  FIRST QUARTER MOON 
    20  04:02  Vernal Equinox 
    24  12:17  Regulus 5.8°N of Moon
    27  02:27  FULL MOON 
    28  07:29  Spica 0.0°N of Moon
    28  10     Venus at Superior Conjunction 
    28  17     Uranus in Conjunction with Sun 
    29  13:18  Saturn 3.3°N of Moon
    29  22:55  Moon at Ascending Node 
    30  20:55  Moon at Perigee: 367494 km
    31  15     Mercury at Greatest Elong: 27.8°W

Apr 02  21:37  LAST QUARTER MOON 
    10  02:35  NEW MOON 
    12  05:12  Moon at Descending Node 
    14  03:51  Aldebaran 3.4°S of Moon
    14  11:23  Jupiter 2.1°N of Moon
    15  15:21  Moon at Apogee: 404865 km
    17  17     Mars in Conjunction with Sun 
    18  05:31  FIRST QUARTER MOON 
    20  21:44  Regulus 5.9°N of Moon
    22  04     Lyrid Meteor Shower
    24  17:10  Spica 0.0°N of Moon
    25  12:57  FULL MOON 
    25  13:09  Partial Lunar Eclipse; mag=0.014
    25  19:28  Saturn 3.5°N of Moon
    26  07:07  Moon at Ascending Node 
    27  12:48  Moon at Perigee: 362268 km
    28  01     Saturn at Opposition 

May 02  04:14  LAST QUARTER MOON 
    04  17     Eta-Aquarid Meteor Shower
    09  12:12  Moon at Descending Node 
    09  17:27  Annular Solar Eclipse; mag=0.954
    09  17:29  NEW MOON 
    11  14     Mercury at Superior Conjunction 
    12  06:03  Jupiter 2.6°N of Moon
    13  06:31  Moon at Apogee: 405827 km
    15  19     Mercury at Perihelion 
    17  21:35  FIRST QUARTER MOON 
    18  06:14  Regulus 5.9°N of Moon
    22  03:35  Spica 0.0°N of Moon
    23  02:55  Saturn 3.7°N of Moon
    23  17:40  Moon at Ascending Node 
    24  21:11  Pen. Lunar Eclipse; mag=0.006
    24  21:25  FULL MOON 
    25  04:45  Antares 6.6°S of Moon
    25  18:45  Moon at Perigee: 358375 km
    26  23     Mercury 2.4° of Jupiter
    31  11:58  LAST QUARTER MOON 

Jun 05  17:59  Moon at Descending Node 
    08  08:56  NEW MOON 
    09  14:40  Moon at Apogee: 406487 km
    10  04:19  Venus 5.3°N of Moon
    12  10     Mercury at Greatest Elong: 24.3°E
    13  04     Venus at Perihelion 
    14  13:06  Regulus 5.8°N of Moon
    16  10:24  FIRST QUARTER MOON 
    18  05:57  Mercury 6.1°S of Pollux
    18  12:56  Spica 0.1°S of Moon
    19  08     Jupiter in Conjunction with Sun 
    19  10:45  Saturn 3.6°N of Moon
    20  00     Mercury 1.9° of Venus
    20  02:51  Moon at Ascending Node 
    20  22:04  Summer Solstice 
    21  21:49  Venus 5.1°S of Pollux
    23  04:09  Moon at Perigee: 356990 km
    23  04:32  FULL MOON 
    28  18     Mercury at Aphelion 
    29  21:54  LAST QUARTER MOON 

Date     MST   Event
        (h:m)

Jul 02  21:15  Moon at Descending Node 
    03  08:26  Venus 0.1°N of Beehive
    04  23:09  Aldebaran 3.4°S of Moon
    05  11:59  Earth at Aphelion: 1.01671 
    06  17:36  Moon at Apogee: 406493 km
    08  00:14  NEW MOON 
    09  12     Mercury at Inferior Conjunction 
    11  18:45  Regulus 5.7°N of Moon
    15  20:13  Spica 0.3°S of Moon
    15  20:18  FIRST QUARTER MOON 
    16  18:19  Saturn 3.3°N of Moon
    17  07:58  Moon at Ascending Node 
    21  13:27  Moon at Perigee: 358402 km
    22  02:30  Venus 1.0°N of Regulus
    22  11:15  FULL MOON 
    27  19     Delta-Aquarid Meteor Shower
    28  12     Mercury 6.9° of Mars
    29  10:43  LAST QUARTER MOON 
    29  22:50  Moon at Descending Node 
    30  02     Mercury at Greatest Elong: 19.6°W

Aug 01  05:22  Aldebaran 3.2°S of Moon
    03  01:53  Moon at Apogee: 405834 km
    03  15:22  Jupiter 4.0°N of Moon
    04  15:31  Mercury 7.3°S of Pollux
    05  01:39  Mercury 4.4°N of Moon
    06  14:51  NEW MOON 
    09  19:19  Venus 5.1°N of Moon
    11  18     Mercury at Perihelion 
    12  01:46  Spica 0.6°S of Moon
    12  11     Perseid Meteor Shower
    13  01:51  Saturn 2.8°N of Moon
    13  09:20  Moon at Ascending Node 
    14  03:56  FIRST QUARTER MOON 
    17  10:03  Mars 5.8°S of Pollux
    18  18:26  Moon at Perigee: 362265 km
    20  18:45  FULL MOON 
    24  14     Mercury at Superior Conjunction 
    26  01:19  Moon at Descending Node 
    26  17     Neptune at Opposition 
    28  02:35  LAST QUARTER MOON 
    28  12:32  Aldebaran 2.9°S of Moon
    30  16:46  Moon at Apogee: 404883 km
    31  09:38  Jupiter 4.5°N of Moon

Sep 05  04:36  NEW MOON 
    05  17:37  Venus 1.5°N of Spica
    08  03:00  Mars 0.5°S of Beehive
    08  07:11  Spica 0.8°S of Moon
    08  14:04  Venus 0.4°N of Moon: Occn.
    09  10:29  Moon at Ascending Node 
    09  10:29  Saturn 2.3°N of Moon
    12  10:08  FIRST QUARTER MOON 
    15  09:34  Moon at Perigee: 367388 km
    19  04:13  FULL MOON 
    22  06:48  Moon at Descending Node 
    22  13:44  Autumnal Equinox 
    24  15:29  Mercury 0.7°N of Spica
    24  20:39  Aldebaran 2.7°S of Moon
    26  20:56  LAST QUARTER MOON 
    27  11:17  Moon at Apogee: 404309 km
    28  02:05  Jupiter 4.9°N of Moon

Oct 01  15:19  Regulus 5.6°N of Moon
    03  06     Uranus at Opposition 
    03  12     Venus at Aphelion 
    04  17:35  NEW MOON 
    06  15:08  Moon at Ascending Node 
    06  15:28  Mercury 2.8°S of Moon
    06  21:30  Saturn 1.9°N of Moon
    08  05:07  Venus 4.7°S of Moon
    08  06     Mercury 5.0° of Saturn
    09  03     Mercury at Greatest Elong: 25.3°E
    10  16:06  Moon at Perigee: 369813 km
    11  16:02  FIRST QUARTER MOON 
    14  20:51  Mars 0.9°N of Regulus
    16  11:26  Venus 1.5°N of Antares
    18  16:38  FULL MOON 
    18  16:51  Pen. Lunar Eclipse; mag=0.756
    19  14:47  Moon at Descending Node 
    21  03     Orionid Meteor Shower
    22  05:06  Aldebaran 2.7°S of Moon
    25  07:25  Moon at Apogee: 404561 km
    25  14:55  Jupiter 5.1°N of Moon
    26  16:41  LAST QUARTER MOON 
    29  00:17  Regulus 5.7°N of Moon

Nov 01  02     Venus at Greatest Elong: 47.1°E
    01  13     Mercury at Inferior Conjunction 
    02  23:52  Moon at Ascending Node 
    03  05:47  Hybrid Solar Eclipse; mag=1.014
    03  05:50  NEW MOON 
    05  04     S Taurid Meteor Shower
    06  02:28  Moon at Perigee: 365362 km
    06  04     Saturn in Conjunction with Sun 
    07  17     Mercury at Perihelion 
    08  08:08  Jupiter 6.1°S of Pollux
    09  22:57  FIRST QUARTER MOON 
    12  03     N Taurid Meteor Shower
    15  22:30  Moon at Descending Node 
    17  08:16  FULL MOON 
    17  09     Leonid Meteor Shower
    17  19     Mercury at Greatest Elong: 19.5°W
    18  13:00  Aldebaran 2.7°S of Moon
    21  22:21  Jupiter 5.1°N of Moon
    22  02:50  Moon at Apogee: 405446 km
    25  08:45  Regulus 5.6°N of Moon
    25  12:28  LAST QUARTER MOON 
    25  22     Mercury 0.3° of Saturn
    27  09:10  Mars 5.7°N of Moon
    29  09:43  Spica 0.9°S of Moon
    30  09:59  Moon at Ascending Node 

Dec 01  03:13  Saturn 1.2°N of Moon: Occn.
    02  17:22  NEW MOON 
    04  03:15  Moon at Perigee: 360065 km
    09  08:12  FIRST QUARTER MOON 
    13  03:10  Moon at Descending Node 
    13  22     Geminid Meteor Shower
    15  19:45  Aldebaran 2.7°S of Moon
    17  02:28  FULL MOON 
    19  00:11  Jupiter 5.0°N of Moon
    19  16:49  Moon at Apogee: 406269 km
    21  10:11  Winter Solstice 
    21  17     Mercury at Aphelion 
    22  07     Ursid Meteor Shower
    22  15:47  Regulus 5.4°N of Moon
    25  06:48  LAST QUARTER MOON 
    25  19:45  Mars 4.6°N of Moon
    26  19:10  Spica 1.0°S of Moon
    27  17:21  Moon at Ascending Node 
    28  18:42  Saturn 0.9°N of Moon: Occn.
    28  23     Mercury at Superior Conjunction 

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.

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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