2015 Calendar of Astronomical Events



2015 Phases of the Moon

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

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

Pacific 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     PST   Event
        (h:m)

Jan 02  03:35  Aldebaran 1.4°S of Moon
    03  18     Quadrantid Meteor Shower
    04  00:59  Earth at Perihelion: 0.98328 
    04  20:53  FULL MOON 
    08  00:16  Jupiter 5.1°N of Moon
    08  17:34  Regulus 4.1°N of Moon
    09  10:17  Moon at Apogee: 405411 km
    10  17     Mercury 0.6° of Venus
    12  07:33  Moon at Ascending Node 
    13  01:27  Spica 3.1°S of Moon
    13  01:47  LAST QUARTER MOON 
    14  12     Mercury at Greatest Elong: 18.9°E
    16  03:52  Saturn 1.9°S of Moon
    20  05:14  NEW MOON 
    21  09:39  Mercury 3.0°S of Moon
    21  12:06  Moon at Perigee: 359643 km
    21  13     Mercury at Perihelion 
    21  21:01  Venus 5.6°S of Moon
    22  20:40  Mars 3.9°S of Moon
    25  02:23  Moon at Descending Node 
    26  20:48  FIRST QUARTER MOON 
    29  09:07  Aldebaran 1.2°S of Moon
    30  06     Mercury at Inferior Conjunction 

Feb 03  15:09  FULL MOON 
    04  00:35  Jupiter 5.2°N of Moon
    05  00:17  Regulus 4.0°N of Moon
    05  22:25  Moon at Apogee: 406155 km
    06  09     Jupiter at Opposition 
    08  09:10  Moon at Ascending Node 
    09  08:23  Spica 3.3°S of Moon
    11  19:50  LAST QUARTER MOON 
    12  16:10  Saturn 2.1°S of Moon
    16  22:20  Mercury 3.5°S of Moon
    18  15:47  NEW MOON 
    18  23:29  Moon at Perigee: 356992 km
    20  16:56  Venus 2.0°S of Moon
    20  17:28  Mars 1.5°S of Moon
    21  08:05  Moon at Descending Node 
    24  08     Mercury at Greatest Elong: 26.7°W
    25  09:14  FIRST QUARTER MOON 
    25  15:02  Aldebaran 1.0°S of Moon
    25  20     Neptune in Conjunction with Sun 

Mar 02  23:56  Jupiter 5.5°N of Moon
    04  06:29  Regulus 4.0°N of Moon
    04  23:35  Moon at Apogee: 406386 km
    05  10:05  FULL MOON 
    06  12     Mercury at Aphelion 
    07  13:04  Moon at Ascending Node 
    08  14:21  Spica 3.4°S of Moon
    12  00:25  Saturn 2.3°S of Moon
    13  09:48  LAST QUARTER MOON 
    18  20:57  Mercury 5.2°S of Moon
    19  11:38  Moon at Perigee: 357584 km
    20  01:36  NEW MOON 
    20  01:46  Total Solar Eclipse; mag=1.044
    20  14:45  Vernal Equinox 
    20  18:19  Moon at Descending Node 
    21  14:13  Mars 1.0°N of Moon: Occn.
    22  11:51  Venus 2.8°N of Moon
    24  22:55  Aldebaran 0.9°S of Moon
    26  23:43  FIRST QUARTER MOON 
    30  02:19  Jupiter 5.6°N of Moon
    31  12:45  Regulus 4.0°N of Moon

Apr 01  04:59  Moon at Apogee: 406012 km
    03  19:17  Moon at Ascending Node 
    04  04:01  Partial Lunar Eclipse; mag=0.996
    04  04:06  FULL MOON 
    04  20:21  Spica 3.5°S of Moon
    06  06     Uranus in Conjunction with Sun 
    08  05:08  Saturn 2.2°S of Moon
    08  06:34  Jupiter 2.0°S of Beehive
    09  20     Mercury at Superior Conjunction 
    11  07:28  Venus 2.5°S of Pleiades
    11  19:44  LAST QUARTER MOON 
    16  19:53  Moon at Perigee: 361026 km
    17  05:07  Moon at Descending Node 
    18  05     Venus at Perihelion 
    18  10:57  NEW MOON 
    19  11:24  Venus 7.2°N of Aldebaran
    19  12     Mercury at Perihelion 
    21  08:35  Aldebaran 0.9°S of Moon
    22  15     Lyrid Meteor Shower
    25  15:55  FIRST QUARTER MOON 
    26  10:06  Jupiter 5.5°N of Moon
    27  19:38  Regulus 4.0°N of Moon
    28  19:55  Moon at Apogee: 405085 km
    30  17:29  Mercury 1.6°S of Pleiades

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

Jun 01  12:02  Saturn 1.9°S of Moon
    02  08:19  FULL MOON 
    06  11     Venus at Greatest Elong: 45.4°E
    09  07:42  LAST QUARTER MOON 
    09  20:39  Moon at Perigee: 369713 km
    10  15:30  Moon at Descending Node 
    13  00:59  Venus 0.5°N of Beehive
    14  07     Mars in Conjunction with Sun 
    14  18:26  Mercury 0.0°N of Moon: Occn.
    16  06:05  NEW MOON 
    20  03:28  Venus 5.8°N of Moon
    20  15:29  Jupiter 4.7°N of Moon
    21  08:38  Summer Solstice 
    21  11:10  Regulus 3.6°N of Moon
    23  01:37  Mercury 1.8°N of Aldebaran
    23  09:01  Moon at Apogee: 404134 km
    24  03:03  FIRST QUARTER MOON 
    24  09     Mercury at Greatest Elong: 22.5°W
    24  09:23  Moon at Ascending Node 
    25  18:58  Spica 3.8°S of Moon
    28  17:27  Saturn 2.0°S of Moon

Date     PST   Event
        (h:m)

Jul 01  18:20  FULL MOON 
    05  10:54  Moon at Perigee: 367095 km
    06  04:59  Earth at Aphelion: 1.01668 
    07  16:07  Moon at Descending Node 
    08  12:24  LAST QUARTER MOON 
    12  09:55  Aldebaran 0.9°S of Moon
    14  13:15  Venus 1.5°S of Regulus
    15  17:24  NEW MOON 
    16  11     Mercury at Perihelion 
    18  09:34  Jupiter 4.1°N of Moon
    18  17:06  Venus 0.4°N of Moon: Occn.
    18  18:49  Regulus 3.4°N of Moon
    21  03:02  Moon at Apogee: 404837 km
    21  11:32  Moon at Ascending Node 
    23  02:45  Spica 4.0°S of Moon
    23  11     Mercury at Superior Conjunction 
    23  20:04  FIRST QUARTER MOON 
    26  00:43  Saturn 2.2°S of Moon
    28  06     Delta-Aquarid Meteor Shower
    31  02:43  FULL MOON 

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

Sep 04  02     Mercury at Greatest Elong: 27.1°E
    04  21:09  Aldebaran 0.6°S of Moon
    05  01:54  LAST QUARTER MOON 
    09  21:53  Venus 2.7°S of Moon
    12  22:41  NEW MOON 
    12  22:55  Partial Solar Eclipse; mag=0.791
    13  20:38  Moon at Ascending Node 
    14  03:28  Moon at Apogee: 406466 km
    14  22:15  Mercury 5.3°S of Moon
    15  16:00  Spica 4.3°S of Moon
    18  18:54  Saturn 2.8°S of Moon
    21  00:59  FIRST QUARTER MOON 
    23  00:20  Autumnal Equinox 
    24  11:38  Mars 0.7°N of Regulus
    27  13:04  Moon at Descending Node 
    27  17:46  Moon at Perigee: 356877 km
    27  18:48  Total Lunar Eclipse; mag=1.273
    27  18:50  FULL MOON 
    30  07     Mercury at Inferior Conjunction 

Oct 02  04:51  Aldebaran 0.5°S of Moon
    04  13:06  LAST QUARTER MOON 
    08  12:32  Venus 0.7°N of Moon: Occn.
    08  13:52  Regulus 3.3°N of Moon
    08  16:26  Venus 2.5°S of Regulus
    09  08:51  Mars 3.4°N of Moon
    09  15:30  Jupiter 2.7°N of Moon
    11  02:54  Moon at Ascending Node 
    11  04:00  Mercury 1.0°N of Moon: Occn.
    11  05:17  Moon at Apogee: 406389 km
    11  19     Uranus at Opposition 
    12  10     Mercury at Perihelion 
    12  16:06  NEW MOON 
    15  19     Mercury at Greatest Elong: 18.1°W
    16  05:20  Saturn 3.0°S of Moon
    20  12:31  FIRST QUARTER MOON 
    21  15     Orionid Meteor Shower
    24  23:36  Moon at Descending Node 
    25  23     Venus at Greatest Elong: 46.4°W
    26  04:59  Moon at Perigee: 358464 km
    27  04:05  FULL MOON 
    29  14:45  Aldebaran 0.6°S of Moon

Nov 03  04:24  LAST QUARTER MOON 
    04  20:19  Regulus 3.2°N of Moon
    05  15     S Taurid Meteor Shower
    06  07:49  Jupiter 2.3°N of Moon
    07  01:56  Mars 1.8°N of Moon
    07  05:54  Venus 1.2°N of Moon
    07  07:53  Moon at Ascending Node 
    07  13:48  Moon at Apogee: 405724 km
    09  04:27  Spica 4.3°S of Moon
    11  09:47  NEW MOON 
    12  14     N Taurid Meteor Shower
    17  07     Mercury at Superior Conjunction 
    17  21     Leonid Meteor Shower
    18  22:27  FIRST QUARTER MOON 
    20  16     Mars at Aphelion 
    21  05:56  Moon at Descending Node 
    23  12:06  Moon at Perigee: 362818 km
    25  14:44  FULL MOON 
    26  01:33  Aldebaran 0.7°S of Moon
    28  22     Venus at Perihelion 
    29  11:20  Venus 3.9°N of Spica
    29  16     Saturn in Conjunction with Sun 

Dec 02  03:53  Regulus 3.0°N of Moon
    02  23:40  LAST QUARTER MOON 
    03  22:21  Jupiter 1.8°N of Moon
    04  10:33  Moon at Ascending Node 
    05  06:56  Moon at Apogee: 404800 km
    05  18:40  Mars 0.1°N of Moon: Occn.
    06  11:42  Spica 4.4°S of Moon
    07  08:55  Venus 0.7°S of Moon: Occn.
    11  02:29  NEW MOON 
    14  10     Geminid Meteor Shower
    17  22:01  Saturn 6.1°N of Antares
    18  07:13  Moon at Descending Node 
    18  07:14  FIRST QUARTER MOON 
    21  00:53  Moon at Perigee: 368418 km
    21  20:48  Winter Solstice 
    22  18     Ursid Meteor Shower
    23  06:18  Mars 3.3°N of Spica
    23  11:09  Aldebaran 0.7°S of Moon
    25  03:11  FULL MOON 
    28  19     Mercury at Greatest Elong: 19.7°E
    29  12:30  Regulus 2.7°N of Moon
    31  09:55  Jupiter 1.5°N of Moon
    31  12:19  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.

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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