2015 Calendar of Astronomical Events




    


2015 Phases of the Moon

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

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

Atlantic 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     AST   Event
        (h:m)

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

Feb 03  19:09  FULL MOON 
    04  04:35  Jupiter 5.2°N of Moon
    05  04:17  Regulus 4.0°N of Moon
    06  02:25  Moon at Apogee: 406155 km
    06  13     Jupiter at Opposition 
    08  13:10  Moon at Ascending Node 
    09  12:23  Spica 3.3°S of Moon
    11  23:50  LAST QUARTER MOON 
    12  20:10  Saturn 2.1°S of Moon
    17  02:20  Mercury 3.5°S of Moon
    18  19:47  NEW MOON 
    19  03:29  Moon at Perigee: 356992 km
    20  20:56  Venus 2.0°S of Moon
    20  21:28  Mars 1.5°S of Moon
    21  12:05  Moon at Descending Node 
    24  12     Mercury at Greatest Elong: 26.7°W
    25  13:14  FIRST QUARTER MOON 
    25  19:02  Aldebaran 1.0°S of Moon
    26  00     Neptune in Conjunction with Sun 

Mar 03  03:56  Jupiter 5.5°N of Moon
    04  10:29  Regulus 4.0°N of Moon
    05  03:35  Moon at Apogee: 406386 km
    05  14:05  FULL MOON 
    06  16     Mercury at Aphelion 
    07  17:04  Moon at Ascending Node 
    08  18:21  Spica 3.4°S of Moon
    12  04:25  Saturn 2.3°S of Moon
    13  13:48  LAST QUARTER MOON 
    19  00:57  Mercury 5.2°S of Moon
    19  15:38  Moon at Perigee: 357584 km
    20  05:36  NEW MOON 
    20  05:46  Total Solar Eclipse; mag=1.045
    20  18:45  Vernal Equinox 
    20  22:19  Moon at Descending Node 
    21  18:13  Mars 1.0°N of Moon: Occn.
    22  15:51  Venus 2.8°N of Moon
    25  02:55  Aldebaran 0.9°S of Moon
    27  03:43  FIRST QUARTER MOON 
    30  06:19  Jupiter 5.6°N of Moon
    31  16:45  Regulus 4.0°N of Moon

Apr 01  08:59  Moon at Apogee: 406012 km
    03  23:17  Moon at Ascending Node 
    04  08:00  Total Lunar Eclipse; mag=1.001
    04  08:06  FULL MOON 
    05  00:21  Spica 3.5°S of Moon
    06  10     Uranus in Conjunction with Sun 
    08  09:08  Saturn 2.2°S of Moon
    08  10:34  Jupiter 2.0°S of Beehive
    10  00     Mercury at Superior Conjunction 
    11  11:28  Venus 2.5°S of Pleiades
    11  23:44  LAST QUARTER MOON 
    16  23:53  Moon at Perigee: 361026 km
    17  09:07  Moon at Descending Node 
    18  09     Venus at Perihelion 
    18  14:57  NEW MOON 
    19  15:24  Venus 7.2°N of Aldebaran
    19  16     Mercury at Perihelion 
    21  12:35  Aldebaran 0.9°S of Moon
    22  15     Mercury 1.3° of Mars
    22  19     Lyrid Meteor Shower
    25  19:55  FIRST QUARTER MOON 
    26  14:06  Jupiter 5.5°N of Moon
    27  23:38  Regulus 4.0°N of Moon
    28  23:55  Moon at Apogee: 405085 km
    30  21:29  Mercury 1.6°S of Pleiades

May 01  05:50  Moon at Ascending Node 
    02  07:10  Spica 3.5°S of Moon
    03  23:42  FULL MOON 
    05  09     Eta-Aquarid Meteor Shower
    05  12:19  Saturn 2.0°S of Moon
    07  01     Mercury at Greatest Elong: 21.2°E
    11  06:36  LAST QUARTER MOON 
    14  16:37  Moon at Descending Node 
    14  20:23  Moon at Perigee: 366024 km
    18  00:13  NEW MOON 
    19  02:51  Mercury 5.7°N of Moon
    22  21     Saturn at Opposition 
    24  03:03  Jupiter 5.1°N of Moon
    25  07:14  Regulus 3.8°N of Moon
    25  13:19  FIRST QUARTER MOON 
    26  18:12  Moon at Apogee: 404246 km
    28  10:40  Moon at Ascending Node 
    29  13:27  Venus 3.9°S of Pollux
    29  14:52  Spica 3.6°S of Moon
    30  13     Mercury at Inferior Conjunction 

Jun 01  16:02  Saturn 1.9°S of Moon
    02  12:19  FULL MOON 
    06  15     Venus at Greatest Elong: 45.4°E
    09  11:42  LAST QUARTER MOON 
    10  00:39  Moon at Perigee: 369713 km
    10  19:30  Moon at Descending Node 
    13  04:59  Venus 0.5°N of Beehive
    14  11     Mars in Conjunction with Sun 
    14  22:26  Mercury 0.0°N of Moon: Occn.
    16  10:05  NEW MOON 
    20  07:28  Venus 5.8°N of Moon
    20  19:29  Jupiter 4.7°N of Moon
    21  12:38  Summer Solstice 
    21  15:10  Regulus 3.6°N of Moon
    23  05:37  Mercury 1.8°N of Aldebaran
    23  13:01  Moon at Apogee: 404134 km
    24  07:03  FIRST QUARTER MOON 
    24  13     Mercury at Greatest Elong: 22.5°W
    24  13:23  Moon at Ascending Node 
    25  22:58  Spica 3.8°S of Moon
    28  21:27  Saturn 2.0°S of Moon

Date     AST   Event
        (h:m)

Jul 01  22:20  FULL MOON 
    05  14:54  Moon at Perigee: 367095 km
    06  15     Earth at Aphelion: 1.01668 AU
    07  20:07  Moon at Descending Node 
    08  16:24  LAST QUARTER MOON 
    12  13:55  Aldebaran 0.9°S of Moon
    14  17:15  Venus 1.5°S of Regulus
    15  21:24  NEW MOON 
    16  15     Mercury at Perihelion 
    18  13:34  Jupiter 4.1°N of Moon
    18  21:06  Venus 0.4°N of Moon: Occn.
    18  22:49  Regulus 3.4°N of Moon
    21  07:02  Moon at Apogee: 404837 km
    21  15:32  Moon at Ascending Node 
    23  06:45  Spica 4.0°S of Moon
    23  15     Mercury at Superior Conjunction 
    24  00:04  FIRST QUARTER MOON 
    26  04:43  Saturn 2.2°S of Moon
    28  10     Delta-Aquarid Meteor Shower
    31  06:43  FULL MOON 

Aug 02  06:11  Moon at Perigee: 362135 km
    03  22:53  Moon at Descending Node 
    06  22:03  LAST QUARTER MOON 
    07  03     Mercury 0.5° of Jupiter
    07  13:25  Mercury 0.8°N of Regulus
    08  18     Venus at Aphelion 
    08  19:22  Aldebaran 0.7°S of Moon
    13  02     Perseid Meteor Shower
    14  10:54  NEW MOON 
    15  15     Venus at Inferior Conjunction 
    16  10:34  Mercury 2.0°N of Moon
    17  19:05  Moon at Ascending Node 
    17  22:33  Moon at Apogee: 405852 km
    19  13:46  Spica 4.2°S of Moon
    19  23:35  Mars 0.5°S of Beehive
    22  13:21  Saturn 2.6°S of Moon
    22  15:31  FIRST QUARTER MOON 
    26  17     Jupiter in Conjunction with Sun 
    29  14:35  FULL MOON 
    29  15     Mercury at Aphelion 
    30  11:24  Moon at Perigee: 358289 km
    31  06:16  Moon at Descending Node 
    31  22     Neptune at Opposition 

Sep 04  06     Mercury at Greatest Elong: 27.1°E
    05  01:09  Aldebaran 0.6°S of Moon
    05  05:54  LAST QUARTER MOON 
    10  01:53  Venus 2.7°S of Moon
    13  02:41  NEW MOON 
    13  02:54  Partial Solar Eclipse; mag=0.788
    14  00:38  Moon at Ascending Node 
    14  07:28  Moon at Apogee: 406466 km
    15  02:15  Mercury 5.3°S of Moon
    15  20:00  Spica 4.3°S of Moon
    18  22:54  Saturn 2.8°S of Moon
    21  04:59  FIRST QUARTER MOON 
    23  04:20  Autumnal Equinox 
    24  15:38  Mars 0.7°N of Regulus
    27  17:04  Moon at Descending Node 
    27  21:46  Moon at Perigee: 356877 km
    27  22:47  Total Lunar Eclipse; mag=1.276
    27  22:50  FULL MOON 
    30  11     Mercury at Inferior Conjunction 

Oct 02  08:51  Aldebaran 0.5°S of Moon
    04  17:06  LAST QUARTER MOON 
    08  16:32  Venus 0.7°N of Moon: Occn.
    08  17:52  Regulus 3.3°N of Moon
    08  20:26  Venus 2.5°S of Regulus
    09  12:51  Mars 3.4°N of Moon
    09  19:30  Jupiter 2.7°N of Moon
    11  06:54  Moon at Ascending Node 
    11  08:00  Mercury 1.0°N of Moon: Occn.
    11  09:17  Moon at Apogee: 406389 km
    11  23     Uranus at Opposition 
    12  14     Mercury at Perihelion 
    12  20:06  NEW MOON 
    15  23     Mercury at Greatest Elong: 18.1°W
    16  09:20  Saturn 3.0°S of Moon
    20  16:31  FIRST QUARTER MOON 
    21  19     Orionid Meteor Shower
    25  03:36  Moon at Descending Node 
    26  03     Venus at Greatest Elong: 46.4°W
    26  08:59  Moon at Perigee: 358464 km
    27  08:05  FULL MOON 
    29  18:45  Aldebaran 0.6°S of Moon

Nov 03  08:24  LAST QUARTER MOON 
    05  00:19  Regulus 3.2°N of Moon
    05  19     S Taurid Meteor Shower
    06  11:49  Jupiter 2.3°N of Moon
    07  05:56  Mars 1.8°N of Moon
    07  09:54  Venus 1.2°N of Moon
    07  11:53  Moon at Ascending Node 
    07  17:48  Moon at Apogee: 405724 km
    09  08:27  Spica 4.3°S of Moon
    11  13:47  NEW MOON 
    12  18     N Taurid Meteor Shower
    17  11     Mercury at Superior Conjunction 
    18  01     Leonid Meteor Shower
    19  02:27  FIRST QUARTER MOON 
    20  20     Mars at Aphelion 
    21  09:56  Moon at Descending Node 
    23  16:06  Moon at Perigee: 362818 km
    25  18:44  FULL MOON 
    26  05:33  Aldebaran 0.7°S of Moon
    29  02     Venus at Perihelion 
    29  15:20  Venus 3.9°N of Spica
    29  20     Saturn in Conjunction with Sun 

Dec 02  07:53  Regulus 3.0°N of Moon
    03  03:40  LAST QUARTER MOON 
    04  02:21  Jupiter 1.8°N of Moon
    04  14:33  Moon at Ascending Node 
    05  10:56  Moon at Apogee: 404800 km
    05  22:40  Mars 0.1°N of Moon: Occn.
    06  15:42  Spica 4.4°S of Moon
    07  12:55  Venus 0.7°S of Moon: Occn.
    11  06:29  NEW MOON 
    14  14     Geminid Meteor Shower
    18  02:01  Saturn 6.1°N of Antares
    18  11:13  Moon at Descending Node 
    18  11:14  FIRST QUARTER MOON 
    21  04:53  Moon at Perigee: 368418 km
    22  00:48  Winter Solstice 
    22  22     Ursid Meteor Shower
    23  10:18  Mars 3.3°N of Spica
    23  15:09  Aldebaran 0.7°S of Moon
    25  07:11  FULL MOON 
    28  23     Mercury at Greatest Elong: 19.7°E
    29  16:30  Regulus 2.7°N of Moon
    31  13:55  Jupiter 1.5°N of Moon
    31  16:19  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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