2015 Calendar of Astronomical Events




    


2015 Phases of the Moon

Central 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.

2015 Phases of the Moon
Central Standard Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 4 22:53 Jan 13 03:47
Jan 20 07:14 Jan 26 22:48 Feb 3 17:09 Feb 11 21:50
Feb 18 17:47 Feb 25 11:14 Mar 5 12:06 Mar 13 11:48
Mar 20 03:36 T Mar 27 01:43 Apr 4 06:06 t Apr 11 21:44
Apr 18 12:57 Apr 25 17:55 May 3 21:42 May 11 04:36
May 17 22:13 May 25 11:19 Jun 2 10:19 Jun 9 09:42
Jun 16 08:05 Jun 24 05:03 Jul 1 20:20 Jul 8 14:24
Jul 15 19:24 Jul 23 22:04 Jul 31 04:43 Aug 6 20:03
Aug 14 08:54 Aug 22 13:31 Aug 29 12:35 Sep 5 03:54
Sep 13 00:41 P Sep 21 02:59 Sep 27 20:50 t Oct 4 15:06
Oct 12 18:06 Oct 20 14:31 Oct 27 06:05 Nov 3 06:24
Nov 11 11:47 Nov 19 00:27 Nov 25 16:44 Dec 3 01:40
Dec 11 04:29 Dec 18 09:14 Dec 25 05:11 -

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.



2015 Calendar of Astronomical Events

Central 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.

2015 Calendar of Astronomical Events
January - June July - December
Date     CST   Event
        (h:m)

Jan 02  05:35  Aldebaran 1.4°S of Moon
    03  20     Quadrantid Meteor Shower
    04  00     Earth at Perihelion: 0.98328 AU
    04  22:53  FULL MOON 
    08  02:16  Jupiter 5.1°N of Moon
    08  19:34  Regulus 4.1°N of Moon
    09  12:17  Moon at Apogee: 405411 km
    10  19     Mercury 0.6° of Venus
    12  09:33  Moon at Ascending Node 
    13  03:27  Spica 3.1°S of Moon
    13  03:47  LAST QUARTER MOON 
    14  14     Mercury at Greatest Elong: 18.9°E
    16  05:52  Saturn 1.9°S of Moon
    20  07:14  NEW MOON 
    21  11:39  Mercury 3.0°S of Moon
    21  14:06  Moon at Perigee: 359643 km
    21  15     Mercury at Perihelion 
    21  23:01  Venus 5.6°S of Moon
    22  22:40  Mars 3.9°S of Moon
    25  04:23  Moon at Descending Node 
    26  22:48  FIRST QUARTER MOON 
    29  11:07  Aldebaran 1.2°S of Moon
    30  08     Mercury at Inferior Conjunction 

Feb 03  17:09  FULL MOON 
    04  02:35  Jupiter 5.2°N of Moon
    05  02:17  Regulus 4.0°N of Moon
    06  00:25  Moon at Apogee: 406155 km
    06  11     Jupiter at Opposition 
    08  11:10  Moon at Ascending Node 
    09  10:23  Spica 3.3°S of Moon
    11  21:50  LAST QUARTER MOON 
    12  18:10  Saturn 2.1°S of Moon
    17  00:20  Mercury 3.5°S of Moon
    18  17:47  NEW MOON 
    19  01:29  Moon at Perigee: 356992 km
    20  18:56  Venus 2.0°S of Moon
    20  19:28  Mars 1.5°S of Moon
    21  10:05  Moon at Descending Node 
    24  10     Mercury at Greatest Elong: 26.7°W
    25  11:14  FIRST QUARTER MOON 
    25  17:02  Aldebaran 1.0°S of Moon
    25  22     Neptune in Conjunction with Sun 

Mar 03  01:56  Jupiter 5.5°N of Moon
    04  08:29  Regulus 4.0°N of Moon
    05  01:35  Moon at Apogee: 406386 km
    05  12:05  FULL MOON 
    06  14     Mercury at Aphelion 
    07  15:04  Moon at Ascending Node 
    08  16:21  Spica 3.4°S of Moon
    12  02:25  Saturn 2.3°S of Moon
    13  11:48  LAST QUARTER MOON 
    18  22:57  Mercury 5.2°S of Moon
    19  13:38  Moon at Perigee: 357584 km
    20  03:36  NEW MOON 
    20  03:46  Total Solar Eclipse; mag=1.045
    20  16:45  Vernal Equinox 
    20  20:19  Moon at Descending Node 
    21  16:13  Mars 1.0°N of Moon: Occn.
    22  13:51  Venus 2.8°N of Moon
    25  00:55  Aldebaran 0.9°S of Moon
    27  01:43  FIRST QUARTER MOON 
    30  04:19  Jupiter 5.6°N of Moon
    31  14:45  Regulus 4.0°N of Moon

Apr 01  06:59  Moon at Apogee: 406012 km
    03  21:17  Moon at Ascending Node 
    04  06:00  Total Lunar Eclipse; mag=1.001
    04  06:06  FULL MOON 
    04  22:21  Spica 3.5°S of Moon
    06  08     Uranus in Conjunction with Sun 
    08  07:08  Saturn 2.2°S of Moon
    08  08:34  Jupiter 2.0°S of Beehive
    09  22     Mercury at Superior Conjunction 
    11  09:28  Venus 2.5°S of Pleiades
    11  21:44  LAST QUARTER MOON 
    16  21:53  Moon at Perigee: 361026 km
    17  07:07  Moon at Descending Node 
    18  07     Venus at Perihelion 
    18  12:57  NEW MOON 
    19  13:24  Venus 7.2°N of Aldebaran
    19  14     Mercury at Perihelion 
    21  10:35  Aldebaran 0.9°S of Moon
    22  13     Mercury 1.3° of Mars
    22  17     Lyrid Meteor Shower
    25  17:55  FIRST QUARTER MOON 
    26  12:06  Jupiter 5.5°N of Moon
    27  21:38  Regulus 4.0°N of Moon
    28  21:55  Moon at Apogee: 405085 km
    30  19:29  Mercury 1.6°S of Pleiades

May 01  03:50  Moon at Ascending Node 
    02  05:10  Spica 3.5°S of Moon
    03  21:42  FULL MOON 
    05  07     Eta-Aquarid Meteor Shower
    05  10:19  Saturn 2.0°S of Moon
    06  23     Mercury at Greatest Elong: 21.2°E
    11  04:36  LAST QUARTER MOON 
    14  14:37  Moon at Descending Node 
    14  18:23  Moon at Perigee: 366024 km
    17  22:13  NEW MOON 
    19  00:51  Mercury 5.7°N of Moon
    22  19     Saturn at Opposition 
    24  01:03  Jupiter 5.1°N of Moon
    25  05:14  Regulus 3.8°N of Moon
    25  11:19  FIRST QUARTER MOON 
    26  16:12  Moon at Apogee: 404246 km
    28  08:40  Moon at Ascending Node 
    29  11:27  Venus 3.9°S of Pollux
    29  12:52  Spica 3.6°S of Moon
    30  11     Mercury at Inferior Conjunction 

Jun 01  14:02  Saturn 1.9°S of Moon
    02  10:19  FULL MOON 
    06  13     Venus at Greatest Elong: 45.4°E
    09  09:42  LAST QUARTER MOON 
    09  22:39  Moon at Perigee: 369713 km
    10  17:30  Moon at Descending Node 
    13  02:59  Venus 0.5°N of Beehive
    14  09     Mars in Conjunction with Sun 
    14  20:26  Mercury 0.0°N of Moon: Occn.
    16  08:05  NEW MOON 
    20  05:28  Venus 5.8°N of Moon
    20  17:29  Jupiter 4.7°N of Moon
    21  10:38  Summer Solstice 
    21  13:10  Regulus 3.6°N of Moon
    23  03:37  Mercury 1.8°N of Aldebaran
    23  11:01  Moon at Apogee: 404134 km
    24  05:03  FIRST QUARTER MOON 
    24  11     Mercury at Greatest Elong: 22.5°W
    24  11:23  Moon at Ascending Node 
    25  20:58  Spica 3.8°S of Moon
    28  19:27  Saturn 2.0°S of Moon

Date     CST   Event
        (h:m)

Jul 01  20:20  FULL MOON 
    05  12:54  Moon at Perigee: 367095 km
    06  13     Earth at Aphelion: 1.01668 AU
    07  18:07  Moon at Descending Node 
    08  14:24  LAST QUARTER MOON 
    12  11:55  Aldebaran 0.9°S of Moon
    14  15:15  Venus 1.5°S of Regulus
    15  19:24  NEW MOON 
    16  13     Mercury at Perihelion 
    18  11:34  Jupiter 4.1°N of Moon
    18  19:06  Venus 0.4°N of Moon: Occn.
    18  20:49  Regulus 3.4°N of Moon
    21  05:02  Moon at Apogee: 404837 km
    21  13:32  Moon at Ascending Node 
    23  04:45  Spica 4.0°S of Moon
    23  13     Mercury at Superior Conjunction 
    23  22:04  FIRST QUARTER MOON 
    26  02:43  Saturn 2.2°S of Moon
    28  08     Delta-Aquarid Meteor Shower
    31  04:43  FULL MOON 

Aug 02  04:11  Moon at Perigee: 362135 km
    03  20:53  Moon at Descending Node 
    06  20:03  LAST QUARTER MOON 
    07  01     Mercury 0.5° of Jupiter
    07  11:25  Mercury 0.8°N of Regulus
    08  16     Venus at Aphelion 
    08  17:22  Aldebaran 0.7°S of Moon
    13  00     Perseid Meteor Shower
    14  08:54  NEW MOON 
    15  13     Venus at Inferior Conjunction 
    16  08:34  Mercury 2.0°N of Moon
    17  17:05  Moon at Ascending Node 
    17  20:33  Moon at Apogee: 405852 km
    19  11:46  Spica 4.2°S of Moon
    19  21:35  Mars 0.5°S of Beehive
    22  11:21  Saturn 2.6°S of Moon
    22  13:31  FIRST QUARTER MOON 
    26  15     Jupiter in Conjunction with Sun 
    29  12:35  FULL MOON 
    29  13     Mercury at Aphelion 
    30  09:24  Moon at Perigee: 358289 km
    31  04:16  Moon at Descending Node 
    31  20     Neptune at Opposition 

Sep 04  04     Mercury at Greatest Elong: 27.1°E
    04  23:09  Aldebaran 0.6°S of Moon
    05  03:54  LAST QUARTER MOON 
    09  23:53  Venus 2.7°S of Moon
    13  00:41  NEW MOON 
    13  00:54  Partial Solar Eclipse; mag=0.788
    13  22:38  Moon at Ascending Node 
    14  05:28  Moon at Apogee: 406466 km
    15  00:15  Mercury 5.3°S of Moon
    15  18:00  Spica 4.3°S of Moon
    18  20:54  Saturn 2.8°S of Moon
    21  02:59  FIRST QUARTER MOON 
    23  02:20  Autumnal Equinox 
    24  13:38  Mars 0.7°N of Regulus
    27  15:04  Moon at Descending Node 
    27  19:46  Moon at Perigee: 356877 km
    27  20:47  Total Lunar Eclipse; mag=1.276
    27  20:50  FULL MOON 
    30  09     Mercury at Inferior Conjunction 

Oct 02  06:51  Aldebaran 0.5°S of Moon
    04  15:06  LAST QUARTER MOON 
    08  14:32  Venus 0.7°N of Moon: Occn.
    08  15:52  Regulus 3.3°N of Moon
    08  18:26  Venus 2.5°S of Regulus
    09  10:51  Mars 3.4°N of Moon
    09  17:30  Jupiter 2.7°N of Moon
    11  04:54  Moon at Ascending Node 
    11  06:00  Mercury 1.0°N of Moon: Occn.
    11  07:17  Moon at Apogee: 406389 km
    11  21     Uranus at Opposition 
    12  12     Mercury at Perihelion 
    12  18:06  NEW MOON 
    15  21     Mercury at Greatest Elong: 18.1°W
    16  07:20  Saturn 3.0°S of Moon
    20  14:31  FIRST QUARTER MOON 
    21  17     Orionid Meteor Shower
    25  01:36  Moon at Descending Node 
    26  01     Venus at Greatest Elong: 46.4°W
    26  06:59  Moon at Perigee: 358464 km
    27  06:05  FULL MOON 
    29  16:45  Aldebaran 0.6°S of Moon

Nov 03  06:24  LAST QUARTER MOON 
    04  22:19  Regulus 3.2°N of Moon
    05  17     S Taurid Meteor Shower
    06  09:49  Jupiter 2.3°N of Moon
    07  03:56  Mars 1.8°N of Moon
    07  07:54  Venus 1.2°N of Moon
    07  09:53  Moon at Ascending Node 
    07  15:48  Moon at Apogee: 405724 km
    09  06:27  Spica 4.3°S of Moon
    11  11:47  NEW MOON 
    12  16     N Taurid Meteor Shower
    17  09     Mercury at Superior Conjunction 
    17  23     Leonid Meteor Shower
    19  00:27  FIRST QUARTER MOON 
    20  18     Mars at Aphelion 
    21  07:56  Moon at Descending Node 
    23  14:06  Moon at Perigee: 362818 km
    25  16:44  FULL MOON 
    26  03:33  Aldebaran 0.7°S of Moon
    29  00     Venus at Perihelion 
    29  13:20  Venus 3.9°N of Spica
    29  18     Saturn in Conjunction with Sun 

Dec 02  05:53  Regulus 3.0°N of Moon
    03  01:40  LAST QUARTER MOON 
    04  00:21  Jupiter 1.8°N of Moon
    04  12:33  Moon at Ascending Node 
    05  08:56  Moon at Apogee: 404800 km
    05  20:40  Mars 0.1°N of Moon: Occn.
    06  13:42  Spica 4.4°S of Moon
    07  10:55  Venus 0.7°S of Moon: Occn.
    11  04:29  NEW MOON 
    14  12     Geminid Meteor Shower
    18  00:01  Saturn 6.1°N of Antares
    18  09:13  Moon at Descending Node 
    18  09:14  FIRST QUARTER MOON 
    21  02:53  Moon at Perigee: 368418 km
    21  22:48  Winter Solstice 
    22  20     Ursid Meteor Shower
    23  08:18  Mars 3.3°N of Spica
    23  13:09  Aldebaran 0.7°S of Moon
    25  05:11  FULL MOON 
    28  21     Mercury at Greatest Elong: 19.7°E
    29  14:30  Regulus 2.7°N of Moon
    31  11:55  Jupiter 1.5°N of Moon
    31  14:19  Moon at Ascending Node 

    

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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