2015 Calendar of Astronomical Events




    


2015 Phases of the Moon

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

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

Alaska 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     AKST   Even
        (h:m)

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

Feb 03  14:09  FULL MOON 
    03  23:35  Jupiter 5.2°N of Moon
    04  23:17  Regulus 4.0°N of Moon
    05  21:25  Moon at Apogee: 406155 km
    06  08     Jupiter at Opposition 
    08  08:10  Moon at Ascending Node 
    09  07:23  Spica 3.3°S of Moon
    11  18:50  LAST QUARTER MOON 
    12  15:10  Saturn 2.1°S of Moon
    16  21:20  Mercury 3.5°S of Moon
    18  14:47  NEW MOON 
    18  22:29  Moon at Perigee: 356992 km
    20  15:56  Venus 2.0°S of Moon
    20  16:28  Mars 1.5°S of Moon
    21  07:05  Moon at Descending Node 
    24  07     Mercury at Greatest Elong: 26.7°W
    25  08:14  FIRST QUARTER MOON 
    25  14:02  Aldebaran 1.0°S of Moon
    25  19     Neptune in Conjunction with Sun 

Mar 02  22:56  Jupiter 5.5°N of Moon
    04  05:29  Regulus 4.0°N of Moon
    04  22:35  Moon at Apogee: 406386 km
    05  09:05  FULL MOON 
    06  11     Mercury at Aphelion 
    07  12:04  Moon at Ascending Node 
    08  13:21  Spica 3.4°S of Moon
    11  23:25  Saturn 2.3°S of Moon
    13  08:48  LAST QUARTER MOON 
    18  19:57  Mercury 5.2°S of Moon
    19  10:38  Moon at Perigee: 357584 km
    20  00:36  NEW MOON 
    20  00:46  Total Solar Eclipse; mag=1.045
    20  13:45  Vernal Equinox 
    20  17:19  Moon at Descending Node 
    21  13:13  Mars 1.0°N of Moon: Occn.
    22  10:51  Venus 2.8°N of Moon
    24  21:55  Aldebaran 0.9°S of Moon
    26  22:43  FIRST QUARTER MOON 
    30  01:19  Jupiter 5.6°N of Moon
    31  11:45  Regulus 4.0°N of Moon

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

May 01  00:50  Moon at Ascending Node 
    02  02:10  Spica 3.5°S of Moon
    03  18:42  FULL MOON 
    05  04     Eta-Aquarid Meteor Shower
    05  07:19  Saturn 2.0°S of Moon
    06  20     Mercury at Greatest Elong: 21.2°E
    11  01:36  LAST QUARTER MOON 
    14  11:37  Moon at Descending Node 
    14  15:23  Moon at Perigee: 366024 km
    17  19:13  NEW MOON 
    18  21:51  Mercury 5.7°N of Moon
    22  16     Saturn at Opposition 
    23  22:03  Jupiter 5.1°N of Moon
    25  02:14  Regulus 3.8°N of Moon
    25  08:19  FIRST QUARTER MOON 
    26  13:12  Moon at Apogee: 404246 km
    28  05:40  Moon at Ascending Node 
    29  08:27  Venus 3.9°S of Pollux
    29  09:52  Spica 3.6°S of Moon
    30  08     Mercury at Inferior Conjunction 

Jun 01  11:02  Saturn 1.9°S of Moon
    02  07:19  FULL MOON 
    06  10     Venus at Greatest Elong: 45.4°E
    09  06:42  LAST QUARTER MOON 
    09  19:39  Moon at Perigee: 369713 km
    10  14:30  Moon at Descending Node 
    12  23:59  Venus 0.5°N of Beehive
    14  06     Mars in Conjunction with Sun 
    14  17:26  Mercury 0.0°N of Moon: Occn.
    16  05:05  NEW MOON 
    20  02:28  Venus 5.8°N of Moon
    20  14:29  Jupiter 4.7°N of Moon
    21  07:38  Summer Solstice 
    21  10:10  Regulus 3.6°N of Moon
    23  00:37  Mercury 1.8°N of Aldebaran
    23  08:01  Moon at Apogee: 404134 km
    24  02:03  FIRST QUARTER MOON 
    24  08     Mercury at Greatest Elong: 22.5°W
    24  08:23  Moon at Ascending Node 
    25  17:58  Spica 3.8°S of Moon
    28  16:27  Saturn 2.0°S of Moon

Date     AKST   Even
        (h:m)

Jul 01  17:20  FULL MOON 
    05  09:54  Moon at Perigee: 367095 km
    06  10     Earth at Aphelion: 1.01668 AU
    07  15:07  Moon at Descending Node 
    08  11:24  LAST QUARTER MOON 
    12  08:55  Aldebaran 0.9°S of Moon
    14  12:15  Venus 1.5°S of Regulus
    15  16:24  NEW MOON 
    16  10     Mercury at Perihelion 
    18  08:34  Jupiter 4.1°N of Moon
    18  16:06  Venus 0.4°N of Moon: Occn.
    18  17:49  Regulus 3.4°N of Moon
    21  02:02  Moon at Apogee: 404837 km
    21  10:32  Moon at Ascending Node 
    23  01:45  Spica 4.0°S of Moon
    23  10     Mercury at Superior Conjunction 
    23  19:04  FIRST QUARTER MOON 
    25  23:43  Saturn 2.2°S of Moon
    28  05     Delta-Aquarid Meteor Shower
    31  01:43  FULL MOON 

Aug 02  01:11  Moon at Perigee: 362135 km
    03  17:53  Moon at Descending Node 
    06  17:03  LAST QUARTER MOON 
    06  22     Mercury 0.5° of Jupiter
    07  08:25  Mercury 0.8°N of Regulus
    08  13     Venus at Aphelion 
    08  14:22  Aldebaran 0.7°S of Moon
    12  21     Perseid Meteor Shower
    14  05:54  NEW MOON 
    15  10     Venus at Inferior Conjunction 
    16  05:34  Mercury 2.0°N of Moon
    17  14:05  Moon at Ascending Node 
    17  17:33  Moon at Apogee: 405852 km
    19  08:46  Spica 4.2°S of Moon
    19  18:35  Mars 0.5°S of Beehive
    22  08:21  Saturn 2.6°S of Moon
    22  10:31  FIRST QUARTER MOON 
    26  12     Jupiter in Conjunction with Sun 
    29  09:35  FULL MOON 
    29  10     Mercury at Aphelion 
    30  06:24  Moon at Perigee: 358289 km
    31  01:16  Moon at Descending Node 
    31  17     Neptune at Opposition 

Sep 04  01     Mercury at Greatest Elong: 27.1°E
    04  20:09  Aldebaran 0.6°S of Moon
    05  00:54  LAST QUARTER MOON 
    09  20:53  Venus 2.7°S of Moon
    12  21:41  NEW MOON 
    12  21:54  Partial Solar Eclipse; mag=0.788
    13  19:38  Moon at Ascending Node 
    14  02:28  Moon at Apogee: 406466 km
    14  21:15  Mercury 5.3°S of Moon
    15  15:00  Spica 4.3°S of Moon
    18  17:54  Saturn 2.8°S of Moon
    20  23:59  FIRST QUARTER MOON 
    22  23:20  Autumnal Equinox 
    24  10:38  Mars 0.7°N of Regulus
    27  12:04  Moon at Descending Node 
    27  16:46  Moon at Perigee: 356877 km
    27  17:47  Total Lunar Eclipse; mag=1.276
    27  17:50  FULL MOON 
    30  06     Mercury at Inferior Conjunction 

Oct 02  03:51  Aldebaran 0.5°S of Moon
    04  12:06  LAST QUARTER MOON 
    08  11:32  Venus 0.7°N of Moon: Occn.
    08  12:52  Regulus 3.3°N of Moon
    08  15:26  Venus 2.5°S of Regulus
    09  07:51  Mars 3.4°N of Moon
    09  14:30  Jupiter 2.7°N of Moon
    11  01:54  Moon at Ascending Node 
    11  03:00  Mercury 1.0°N of Moon: Occn.
    11  04:17  Moon at Apogee: 406389 km
    11  18     Uranus at Opposition 
    12  09     Mercury at Perihelion 
    12  15:06  NEW MOON 
    15  18     Mercury at Greatest Elong: 18.1°W
    16  04:20  Saturn 3.0°S of Moon
    20  11:31  FIRST QUARTER MOON 
    21  14     Orionid Meteor Shower
    24  22:36  Moon at Descending Node 
    25  22     Venus at Greatest Elong: 46.4°W
    26  03:59  Moon at Perigee: 358464 km
    27  03:05  FULL MOON 
    29  13:45  Aldebaran 0.6°S of Moon

Nov 03  03:24  LAST QUARTER MOON 
    04  19:19  Regulus 3.2°N of Moon
    05  14     S Taurid Meteor Shower
    06  06:49  Jupiter 2.3°N of Moon
    07  00:56  Mars 1.8°N of Moon
    07  04:54  Venus 1.2°N of Moon
    07  06:53  Moon at Ascending Node 
    07  12:48  Moon at Apogee: 405724 km
    09  03:27  Spica 4.3°S of Moon
    11  08:47  NEW MOON 
    12  13     N Taurid Meteor Shower
    17  06     Mercury at Superior Conjunction 
    17  20     Leonid Meteor Shower
    18  21:27  FIRST QUARTER MOON 
    20  15     Mars at Aphelion 
    21  04:56  Moon at Descending Node 
    23  11:06  Moon at Perigee: 362818 km
    25  13:44  FULL MOON 
    26  00:33  Aldebaran 0.7°S of Moon
    28  21     Venus at Perihelion 
    29  10:20  Venus 3.9°N of Spica
    29  15     Saturn in Conjunction with Sun 

Dec 02  02:53  Regulus 3.0°N of Moon
    02  22:40  LAST QUARTER MOON 
    03  21:21  Jupiter 1.8°N of Moon
    04  09:33  Moon at Ascending Node 
    05  05:56  Moon at Apogee: 404800 km
    05  17:40  Mars 0.1°N of Moon: Occn.
    06  10:42  Spica 4.4°S of Moon
    07  07:55  Venus 0.7°S of Moon: Occn.
    11  01:29  NEW MOON 
    14  09     Geminid Meteor Shower
    17  21:01  Saturn 6.1°N of Antares
    18  06:13  Moon at Descending Node 
    18  06:14  FIRST QUARTER MOON 
    20  23:53  Moon at Perigee: 368418 km
    21  19:48  Winter Solstice 
    22  17     Ursid Meteor Shower
    23  05:18  Mars 3.3°N of Spica
    23  10:09  Aldebaran 0.7°S of Moon
    25  02:11  FULL MOON 
    28  18     Mercury at Greatest Elong: 19.7°E
    29  11:30  Regulus 2.7°N of Moon
    31  08:55  Jupiter 1.5°N of Moon
    31  11:19  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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