2031 Sky Event Almanac

Pacific Standard Time

The following table gives the date and time of the important astronomical events for the year . The times listed are for Pacific Standard Time (Coordinated Universal Time − 8 hours) . This time zone may have different names in different countries. If Daylight Saving Time is in effect, add one hour to the times listed. A key to astronomical terms appears below the almanac.

2031 Sky Event Almanac
Pacific Standard Time
January - June July - December 
Date     PST   Event
        (h:m)

Jan 03  06:09  Mars 3.6°N of Spica
    03  20     Quadrantid Meteor Shower
    04  06:42  Pleiades 3.5°N of Moon
    04  12     Mercury at Greatest Elong: 22.9°W
    04  13     Earth at Perihelion: 0.98326 AU
    04  14:42  Saturn 2.4°S of Moon
    04  22:37  Moon at Descending Node 
    06  03:00  Moon at Apogee: 406169 km
    08  10:26  FULL MOON 
    16  01:36  Spica 1.5°N of Moon
    16  04:47  LAST QUARTER MOON 
    19  00:51  Moon at Ascending Node 
    19  05:49  Antares 4.9°S of Moon
    19  22:34  Jupiter 0.6°S of Moon: Occn.
    21  13:41  Moon at Perigee: 359637 km
    21  13:53  Mercury 3.7°S of Moon
    22  20:31  NEW MOON 
    27  12     Mercury at Aphelion 
    29  23:43  FIRST QUARTER MOON 
    31  13:26  Pleiades 3.7°N of Moon
    31  19:57  Saturn 2.2°S of Moon

Feb 01  01:25  Moon at Descending Node 
    02  15:45  Moon at Apogee: 405416 km
    07  04:46  FULL MOON 
    12  06:57  Spica 1.2°N of Moon
    13  17:19  Mars 3.7°N of Moon
    14  14:50  LAST QUARTER MOON 
    15  03:21  Moon at Ascending Node 
    16  14:35  Jupiter 1.3°S of Moon: Occn.
    18  16:35  Moon at Perigee: 364745 km
    20  05     Mercury at Superior Conjunction 
    21  07:49  NEW MOON 
    27  21:14  Pleiades 3.9°N of Moon
    28  03:02  Moon at Descending Node 
    28  04:56  Saturn 1.7°S of Moon
    28  20:02  FIRST QUARTER MOON 

Mar 02  10:57  Moon at Apogee: 404533 km
    08  20:30  FULL MOON 
    11  12:44  Spica 1.0°N of Moon
    12  11     Mercury at Perihelion 
    13  11:27  Mars 2.7°N of Moon
    14  03:38  Moon at Ascending Node 
    15  22:36  LAST QUARTER MOON 
    16  02:06  Jupiter 1.8°S of Moon
    17  10:58  Moon at Perigee: 369634 km
    18  04     Mercury at Greatest Elong: 18.5°E
    20  11:41  Vernal Equinox 
    22  19:49  NEW MOON 
    24  02:55  Mercury 0.1°S of Moon: Occn.
    25  20:40  Venus 0.9°S of Moon: Occn.
    27  05:44  Pleiades 4.2°N of Moon
    27  06:22  Moon at Descending Node 
    27  17:01  Saturn 1.2°S of Moon
    28  04:30  Aldebaran 4.5°S of Moon
    30  07:24  Moon at Apogee: 404227 km
    30  16:32  FIRST QUARTER MOON 

Apr 02  15     Neptune in Conjunction with Sun 
    04  12     Mercury at Inferior Conjunction 
    07  09:21  FULL MOON 
    07  20:35  Spica 0.9°N of Moon
    09  18:38  Mars 2.1°N of Moon
    10  06:56  Moon at Ascending Node 
    10  10:05  Venus 2.4°S of Pleiades
    11  11:13  Moon at Perigee: 367996 km
    12  09:56  Jupiter 2.1°S of Moon
    14  04:58  LAST QUARTER MOON 
    15  19     Venus 3.4°N of Saturn
    16  11     Venus at Perihelion 
    21  08:57  NEW MOON 
    22  18     Lyrid Meteor Shower
    23  12:22  Moon at Descending Node 
    23  13:56  Pleiades 4.3°N of Moon
    24  06:42  Saturn 0.7°S of Moon: Occn.
    24  12:36  Aldebaran 4.4°S of Moon
    25  00:28  Venus 3.9°N of Moon
    27  02:30  Moon at Apogee: 404758 km
    29  11:19  FIRST QUARTER MOON 

May 02  12     Mercury at Greatest Elong: 26.9°W
    04  03     Mars at Opposition 
    05  06:17  Spica 1.0°N of Moon
    05  07     Eta-Aquarid Meteor Shower
    06  14:45  Mars 1.9°N of Moon
    06  19:40  FULL MOON 
    06  19:51  Pen. Lunar Eclipse; mag=0.881
    07  14:55  Moon at Ascending Node 
    08  23:28  Moon at Perigee: 362851 km
    09  15:39  Jupiter 2.1°S of Moon
    13  11:07  LAST QUARTER MOON 
    13  22:50  Saturn 3.9°N of Aldebaran
    19  06:37  Mercury 4.4°S of Moon
    20  19:26  Moon at Descending Node 
    20  23:15  Annular Solar Eclipse; mag=0.959
    20  23:17  NEW MOON 
    24  18:08  Moon at Apogee: 405723 km
    29  01:28  Venus 3.9°S of Pollux
    29  03:20  FIRST QUARTER MOON 

Jun 01  16:22  Spica 1.0°N of Moon
    01  19     Venus at Greatest Elong: 45.4°E
    02  11:58  Mars 1.4°N of Moon
    02  19     Saturn in Conjunction with Sun 
    04  01:20  Moon at Ascending Node 
    05  03:44  Pen. Lunar Eclipse; mag=0.129
    05  03:58  FULL MOON 
    05  20:42  Jupiter 1.9°S of Moon
    06  04:11  Moon at Perigee: 358744 km
    08  11     Mercury at Superior Conjunction 
    08  11     Mercury at Perihelion 
    11  18:21  LAST QUARTER MOON 
    14  00     Uranus in Conjunction with Sun 
    14  23     Jupiter at Opposition 
    17  01:18  Moon at Descending Node 
    17  03:08  Pleiades 4.3°N of Moon
    18  02:02  Aldebaran 4.4°S of Moon
    19  14:25  NEW MOON 
    21  03:25  Moon at Apogee: 406452 km
    21  05:17  Summer Solstice 
    25  21:02  Mercury 4.7°S of Pollux
    27  16:19  FIRST QUARTER MOON 
    29  01:14  Spica 0.9°N of Moon
    29  22:41  Mars 0.4°N of Moon: Occn.


Date     PST   Event
        (h:m)

Jul 01  10:35  Moon at Ascending Node 
    03  02:02  Jupiter 1.7°S of Moon
    04  11:01  FULL MOON 
    04  13:14  Moon at Perigee: 357008 km
    05  22     Earth at Aphelion: 1.01669 AU
    11  03:50  LAST QUARTER MOON 
    14  04:38  Moon at Descending Node 
    14  08:49  Pleiades 4.4°N of Moon
    14  23     Mercury at Greatest Elong: 26.6°E
    15  07:49  Aldebaran 4.3°S of Moon
    15  22:23  Saturn 0.4°N of Moon: Occn.
    16  04:17  Venus 1.3°S of Regulus
    18  06:28  Moon at Apogee: 406535 km
    19  05:40  NEW MOON 
    21  15:10  Mercury 3.3°N of Moon
    21  18:15  Venus 1.6°N of Moon
    22  10     Mercury at Aphelion 
    25  10     Mercury 1.6°N of Venus
    26  08:05  Spica 0.6°N of Moon
    27  02:35  FIRST QUARTER MOON 
    27  22:06  Mars 1.1°S of Moon: Occn.
    28  09     Delta-Aquarid Meteor Shower
    28  15:54  Moon at Ascending Node 
    30  08:09  Jupiter 1.7°S of Moon

Aug 01  22:47  Moon at Perigee: 358060 km
    02  17:45  FULL MOON 
    06  19     Venus at Aphelion 
    09  16:24  LAST QUARTER MOON 
    10  06:10  Moon at Descending Node 
    10  19     Venus at Inferior Conjunction 
    11  14:01  Aldebaran 4.1°S of Moon
    11  20     Mercury at Inferior Conjunction 
    12  10:11  Saturn 0.7°N of Moon: Occn.
    13  01     Perseid Meteor Shower
    14  13:37  Moon at Apogee: 405946 km
    17  20:32  NEW MOON 
    22  13:30  Spica 0.4°N of Moon
    24  17:21  Moon at Ascending Node 
    25  05:38  Mars 2.8°S of Moon
    25  10:40  FIRST QUARTER MOON 
    26  15:28  Jupiter 2.0°S of Moon
    29  09     Mercury at Greatest Elong: 18.2°W
    30  04:53  Moon at Perigee: 361684 km

Sep 01  01:20  FULL MOON 
    04  10     Mercury at Perihelion 
    06  08:34  Moon at Descending Node 
    07  21:21  Aldebaran 3.8°S of Moon
    08  08:14  LAST QUARTER MOON 
    08  21:03  Saturn 1.1°N of Moon: Occn.
    10  03:09  Mars 2.5°N of Antares
    11  03:54  Moon at Apogee: 405006 km
    13  02:17  Venus 0.4°S of Moon: Occn.
    16  10:47  NEW MOON 
    18  19:05  Spica 0.2°N of Moon
    20  18:24  Moon at Ascending Node 
    22  18:35  Mars 4.4°S of Moon
    22  21:15  Autumnal Equinox 
    23  00:42  Jupiter 2.5°S of Moon
    23  17:20  FIRST QUARTER MOON 
    23  17     Mercury at Superior Conjunction 
    26  23:09  Moon at Perigee: 366841 km
    28  17     Mars 2.2°S of Jupiter
    30  10:58  FULL MOON 

Oct 03  14:03  Moon at Descending Node 
    05  05:48  Aldebaran 3.6°S of Moon
    06  06:25  Saturn 1.3°N of Moon
    07  07     Neptune at Opposition 
    08  02:50  LAST QUARTER MOON 
    08  22:23  Moon at Apogee: 404365 km
    09  02:13  Venus 2.1°S of Regulus
    12  05:45  Venus 4.0°N of Moon
    16  00:21  NEW MOON 
    17  06:11  Mercury 0.2°S of Moon: Occn.
    17  22:54  Moon at Ascending Node 
    20  12:53  Jupiter 3.0°S of Moon
    21  05     Venus at Greatest Elong: 46.4°W
    21  17     Orionid Meteor Shower
    22  12:06  Moon at Perigee: 370022 km
    22  23:36  FIRST QUARTER MOON 
    29  23:33  FULL MOON 
    29  23:45  Pen. Lunar Eclipse; mag=0.716
    30  22:09  Moon at Descending Node 

Nov 01  14:35  Aldebaran 3.6°S of Moon
    02  13:32  Saturn 1.3°N of Moon
    05  17     S Taurid Meteor Shower
    05  18:45  Moon at Apogee: 404522 km
    06  23:02  LAST QUARTER MOON 
    09  02:11  Mercury 1.8°N of Antares
    09  07     Mercury at Greatest Elong: 23.1°E
    12  11:40  Spica 0.2°N of Moon
    12  17     N Taurid Meteor Shower
    14  07:32  Moon at Ascending Node 
    14  13:06  Hybrid Solar Eclipse; mag=1.011
    14  13:10  NEW MOON 
    16  00     Mars at Perihelion:  1.38145 AU
    16  02:48  Mercury 4.7°S of Moon
    17  04:51  Jupiter 3.4°S of Moon
    17  14:07  Moon at Perigee: 365930 km
    17  23     Leonid Meteor Shower
    21  06:45  FIRST QUARTER MOON 
    27  03     Venus at Perihelion 
    27  06:01  Moon at Descending Node 
    28  15:18  FULL MOON 
    28  17:24  Venus 3.9°N of Spica
    28  22:36  Aldebaran 3.6°S of Moon
    29  18:00  Saturn 1.1°N of Moon: Occn.
    29  19     Mercury at Inferior Conjunction 

Dec 01  09     Mercury at Perihelion 
    03  14:35  Moon at Apogee: 405355 km
    06  19:20  LAST QUARTER MOON 
    09  21:42  Spica 0.2°N of Moon
    11  01:18  Venus 3.3°N of Moon
    11  11     Saturn at Opposition 
    11  17:37  Moon at Ascending Node 
    12  14:17  Mercury 1.6°N of Moon
    14  01:06  NEW MOON 
    14  12     Geminid Meteor Shower
    15  13:31  Moon at Perigee: 360489 km
    17  03     Uranus at Opposition 
    18  02     Mercury at Greatest Elong: 21.5°W
    20  16:00  FIRST QUARTER MOON 
    21  17:56  Winter Solstice 
    22  21     Ursid Meteor Shower
    24  10:44  Moon at Descending Node 
    26  05:13  Aldebaran 3.6°S of Moon
    26  20:28  Saturn 1.0°N of Moon: Occn.
    28  09:33  FULL MOON 
    31  05:16  Moon at Apogee: 406203 km

Terms Used in Sky Event Almanac

  • Perihelion - instant when a planet is closest to the Sun
  • Aphelion - instant when a planet is furthest from the Sun
  • Perigee - instant when the Moon is closest to Earth
  • Apogee - instant when the Moon is furthest from Earth
  • Inferior Conjunction - instant when a planet (Mercury or Venus) passes between Earth and the Sun
  • Superior Conjunction - instant when a planet (Mercury or Venus) passes on the opposite side of the Sun from Earth
  • Greatest Elongation - the maximum angular separation between the Sun and the planet (Mercury or Venus) 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 - instant when a planet appears opposite the Sun as seen from Earth
  • Conjunction - instant when a planet appears closest the Sun as seen from Earth
  • Occultation - the Moon occults or eclipses a star or planet
  • Ascending Node - point where the Moon crosses from the southern to northern portion of its orbit
  • Descending Node - point where the Moon crosses from the northern to the southern portion of its orbit

  • Aldebaran - bright star in the constellation Taurus
  • Pollux - bright star in the constellation Gemini
  • Regulus - bright star in the constellation Leo
  • Spica - bright star in the constellation Virgo
  • Antares - bright star in the constellation Scorpius
  • Pleiades - bright star cluster in the constellation Taurus

2031 Phases of the Moon

Pacific Standard Time

The following table gives the date and time of the Moon's phases for the year . The times listed are for Pacific Standard Time (Coordinated Universal Time − 8 hours) . This time zone may have different names in different countries. If Daylight Saving Time is in effect, add one hour to the times listed.

2031 Phases of the Moon
Pacific Standard Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 08 10:26 Jan 16 04:47
Jan 22 20:31 Jan 29 23:43 Feb 07 04:46 Feb 14 14:50
Feb 21 07:49 Feb 28 20:02 Mar 08 20:30 Mar 15 22:36
Mar 22 19:49 Mar 30 16:32 Apr 07 09:21 Apr 14 04:58
Apr 21 08:57 Apr 29 11:19 May 06 19:40 n May 13 11:07
May 20 23:17 A May 29 03:20 Jun 05 03:58 n Jun 11 18:20
Jun 19 14:25 Jun 27 16:19 Jul 04 11:01 Jul 11 03:50
Jul 19 05:40 Jul 27 02:35 Aug 02 17:45 Aug 09 16:24
Aug 17 20:32 Aug 25 10:40 Sep 01 01:20 Sep 08 08:14
Sep 16 10:47 Sep 23 17:20 Sep 30 10:58 Oct 08 02:50
Oct 16 00:21 Oct 22 23:36 Oct 29 23:33 n Nov 06 23:02
Nov 14 13:10 H Nov 21 06:45 Nov 28 15:18 Dec 06 19:20
Dec 14 01:06 Dec 20 16:00 Dec 28 09:33 -

For a collection of images showing the Moon's phases see: Phases of the Moon Photo Gallery.

The Phases of the Moon table also shows when an eclipse takes place. 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 Phases of the Moon table. 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.

Solar Eclipses

The following table contains links to a series of web pages covering the 21st Century. Each one summarizes ten years of solar eclipses. Every eclipse has links to a global visibility map, an interactive Google map, tables, and additional information.

Decade Pages of Solar Eclipses
Decades
2001-2010 2011-2020 2021-2030 2031-2040 2041-2050
2051-2060 2061-2070 2071-2080 2081-2090 2091-2100

Lunar Eclipses

The following table contains links to a series of web pages covering the 21st Century. Each one summarizes ten years of lunar eclipses. Every eclipse has links to an eclipse diagram, a global visibility map, tables, and additional information.

Decade Pages of Lunar Eclipses
Decades
2001-2010 2011-2020 2021-2030 2031-2040 2041-2050
2051-2060 2061-2070 2071-2080 2081-2090 2091-2100

Sky Event Almanacs: 2031 to 2040

The Americas

Below are links to sky event almanacs from 2031 to 2040 for eight time zones in the Americas.
Choose a time zone and click on a year to get a sky event almanac for that year.

Sky Event Almanacs - The Americas
ART 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
AST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
EST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
CST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
MST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
PST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
AKST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040
HST 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040

        Time Zones Abbreviations
        • ART = Argentina Time (= UTC - 3 hours)
        • AST = Atlantic Standard Time (= UTC - 4 hours)
        • EST = Eastern Standard Time (= UTC - 5 hours)
        • CST = Central Standard Time (= UTC - 6 hours)
        • MST = Mountain Standard Time (= UTC - 7 hours)
        • PST = Pacific Standard Time (= UTC - 8 hours)
        • AKST = Alaskan Standard Time (= UTC - 9 hours)
        • HST = Hawaiian Standard Time (= UTC - 10 hours)
          (where UTC = Coordinated Universal Time)

A time zone may have a different name in different countries. Note the difference in hours between a given time zone and Coordinated Universal Time to help in identification.

For other years and other time zones, visit: Sky Event Almanacs.

Accuracy of the Sky Event Almanacs

The goal of the Sky Event Almanacs is to present a wide range of solar system phenomena with reasonable accuracy. In general, events listed to the nearest hour are accurate to ± 30 minutes. Events listed with a precision in hours and minutes (i.e., hh:mm) are typically accurate to ± 5 minutes or less.

The following table gives a more detailed breakdown of the accuracy of times for various astronomical events.

Accuracy of the Sky Event Almanacs
Solstice/Equinox (Earth) ± 0.5 minute
Aphelion/Perihelion (Earth) ± 30 minutes; ± 0.00001 AU
Solar and Lunar Eclipses ± 0.5 minute
Phases of the Moon ± 0.5 minute
Moon at Nodes ± 2 minutes
Apogee/Perigee of Moon ± 5 minutes; ± 5 kilometers
Conjunctions of Moon with Star or Planet ± 10 minutes
Conjunctions of Planet with Planet ± 3 hours
Inferior/Superior Conjunctions (Mercury & Venus) ± 30 minutes
Greatest Elongation (Mercury & Venus) ± 30 minutes
Opposition/Conjunction (Outer Planets) ± 3 hours
Aphelion/Perihelion of Planets ± 30 minutes

Fifty Year Almanac of Astronomical Events - 2021 to 2070

book


For more information and sample pages, see Fifty Year Almanac of Astronomical Events - 2021 To 2070.

Acknowledgements

All calculations are by Fred Espenak and he assumes full responsibility for their accuracy. Algorithms used in predicting many of the astronomical events 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:

    "Sky Event Almanacs Courtesy of Fred Espenak, www.AstroPixels.com".


Return to: Sky Event Almanacs

Return to: Planetary Ephemeris Data


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