2031 Sky Event Almanac

Eastern Standard Time

The following table gives the date and time of the important astronomical events for the year . The times listed are for Eastern Standard Time (Coordinated Universal Time − 5 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
Eastern Standard Time
January - June July - December 
Date     EST   Event
        (h:m)

Jan 03  09:09  Mars 3.6°N of Spica
    03  23     Quadrantid Meteor Shower
    04  09:42  Pleiades 3.5°N of Moon
    04  15     Mercury at Greatest Elong: 22.9°W
    04  16     Earth at Perihelion: 0.98326 AU
    04  17:42  Saturn 2.4°S of Moon
    05  01:37  Moon at Descending Node 
    06  06:00  Moon at Apogee: 406169 km
    08  13:26  FULL MOON 
    16  04:36  Spica 1.5°N of Moon
    16  07:47  LAST QUARTER MOON 
    19  03:51  Moon at Ascending Node 
    19  08:49  Antares 4.9°S of Moon
    20  01:34  Jupiter 0.6°S of Moon: Occn.
    21  16:41  Moon at Perigee: 359637 km
    21  16:53  Mercury 3.7°S of Moon
    22  23:31  NEW MOON 
    27  15     Mercury at Aphelion 
    30  02:43  FIRST QUARTER MOON 
    31  16:26  Pleiades 3.7°N of Moon
    31  22:57  Saturn 2.2°S of Moon

Feb 01  04:25  Moon at Descending Node 
    02  18:45  Moon at Apogee: 405416 km
    07  07:46  FULL MOON 
    12  09:57  Spica 1.2°N of Moon
    13  20:19  Mars 3.7°N of Moon
    14  17:50  LAST QUARTER MOON 
    15  06:21  Moon at Ascending Node 
    16  17:35  Jupiter 1.3°S of Moon: Occn.
    18  19:35  Moon at Perigee: 364745 km
    20  08     Mercury at Superior Conjunction 
    21  10:49  NEW MOON 
    28  00:14  Pleiades 3.9°N of Moon
    28  06:02  Moon at Descending Node 
    28  07:56  Saturn 1.7°S of Moon
    28  23:02  FIRST QUARTER MOON 

Mar 02  13:57  Moon at Apogee: 404533 km
    08  23:30  FULL MOON 
    11  15:44  Spica 1.0°N of Moon
    12  14     Mercury at Perihelion 
    13  14:27  Mars 2.7°N of Moon
    14  06:38  Moon at Ascending Node 
    16  01:36  LAST QUARTER MOON 
    16  05:06  Jupiter 1.8°S of Moon
    17  13:58  Moon at Perigee: 369634 km
    18  07     Mercury at Greatest Elong: 18.5°E
    20  14:41  Vernal Equinox 
    22  22:49  NEW MOON 
    24  05:55  Mercury 0.1°S of Moon: Occn.
    25  23:40  Venus 0.9°S of Moon: Occn.
    27  08:44  Pleiades 4.2°N of Moon
    27  09:22  Moon at Descending Node 
    27  20:01  Saturn 1.2°S of Moon
    28  07:30  Aldebaran 4.5°S of Moon
    30  10:24  Moon at Apogee: 404227 km
    30  19:32  FIRST QUARTER MOON 

Apr 02  18     Neptune in Conjunction with Sun 
    04  15     Mercury at Inferior Conjunction 
    07  12:21  FULL MOON 
    07  23:35  Spica 0.9°N of Moon
    09  21:38  Mars 2.1°N of Moon
    10  09:56  Moon at Ascending Node 
    10  13:05  Venus 2.4°S of Pleiades
    11  14:13  Moon at Perigee: 367996 km
    12  12:56  Jupiter 2.1°S of Moon
    14  07:58  LAST QUARTER MOON 
    15  22     Venus 3.4°N of Saturn
    16  14     Venus at Perihelion 
    21  11:57  NEW MOON 
    22  21     Lyrid Meteor Shower
    23  15:22  Moon at Descending Node 
    23  16:56  Pleiades 4.3°N of Moon
    24  09:42  Saturn 0.7°S of Moon: Occn.
    24  15:36  Aldebaran 4.4°S of Moon
    25  03:28  Venus 3.9°N of Moon
    27  05:30  Moon at Apogee: 404758 km
    29  14:19  FIRST QUARTER MOON 

May 02  15     Mercury at Greatest Elong: 26.9°W
    04  06     Mars at Opposition 
    05  09:17  Spica 1.0°N of Moon
    05  10     Eta-Aquarid Meteor Shower
    06  17:45  Mars 1.9°N of Moon
    06  22:40  FULL MOON 
    06  22:51  Pen. Lunar Eclipse; mag=0.881
    07  17:55  Moon at Ascending Node 
    09  02:28  Moon at Perigee: 362851 km
    09  18:39  Jupiter 2.1°S of Moon
    13  14:07  LAST QUARTER MOON 
    14  01:50  Saturn 3.9°N of Aldebaran
    19  09:37  Mercury 4.4°S of Moon
    20  22:26  Moon at Descending Node 
    21  02:15  Annular Solar Eclipse; mag=0.959
    21  02:17  NEW MOON 
    24  21:08  Moon at Apogee: 405723 km
    29  04:28  Venus 3.9°S of Pollux
    29  06:20  FIRST QUARTER MOON 

Jun 01  19:22  Spica 1.0°N of Moon
    01  22     Venus at Greatest Elong: 45.4°E
    02  14:58  Mars 1.4°N of Moon
    02  22     Saturn in Conjunction with Sun 
    04  04:20  Moon at Ascending Node 
    05  06:44  Pen. Lunar Eclipse; mag=0.129
    05  06:58  FULL MOON 
    05  23:42  Jupiter 1.9°S of Moon
    06  07:11  Moon at Perigee: 358744 km
    08  14     Mercury at Superior Conjunction 
    08  14     Mercury at Perihelion 
    11  21:21  LAST QUARTER MOON 
    14  03     Uranus in Conjunction with Sun 
    15  02     Jupiter at Opposition 
    17  04:18  Moon at Descending Node 
    17  06:08  Pleiades 4.3°N of Moon
    18  05:02  Aldebaran 4.4°S of Moon
    19  17:25  NEW MOON 
    21  06:25  Moon at Apogee: 406452 km
    21  08:17  Summer Solstice 
    26  00:02  Mercury 4.7°S of Pollux
    27  19:19  FIRST QUARTER MOON 
    29  04:14  Spica 0.9°N of Moon
    30  01:41  Mars 0.4°N of Moon: Occn.


Date     EST   Event
        (h:m)

Jul 01  13:35  Moon at Ascending Node 
    03  05:02  Jupiter 1.7°S of Moon
    04  14:01  FULL MOON 
    04  16:14  Moon at Perigee: 357008 km
    06  01     Earth at Aphelion: 1.01669 AU
    11  06:50  LAST QUARTER MOON 
    14  07:38  Moon at Descending Node 
    14  11:49  Pleiades 4.4°N of Moon
    15  02     Mercury at Greatest Elong: 26.6°E
    15  10:49  Aldebaran 4.3°S of Moon
    16  01:23  Saturn 0.4°N of Moon: Occn.
    16  07:17  Venus 1.3°S of Regulus
    18  09:28  Moon at Apogee: 406535 km
    19  08:40  NEW MOON 
    21  18:10  Mercury 3.3°N of Moon
    21  21:15  Venus 1.6°N of Moon
    22  13     Mercury at Aphelion 
    25  13     Mercury 1.6°N of Venus
    26  11:05  Spica 0.6°N of Moon
    27  05:35  FIRST QUARTER MOON 
    28  01:06  Mars 1.1°S of Moon: Occn.
    28  12     Delta-Aquarid Meteor Shower
    28  18:54  Moon at Ascending Node 
    30  11:09  Jupiter 1.7°S of Moon

Aug 02  01:47  Moon at Perigee: 358060 km
    02  20:45  FULL MOON 
    06  22     Venus at Aphelion 
    09  19:24  LAST QUARTER MOON 
    10  09:10  Moon at Descending Node 
    10  22     Venus at Inferior Conjunction 
    11  17:01  Aldebaran 4.1°S of Moon
    11  23     Mercury at Inferior Conjunction 
    12  13:11  Saturn 0.7°N of Moon: Occn.
    13  04     Perseid Meteor Shower
    14  16:37  Moon at Apogee: 405946 km
    17  23:32  NEW MOON 
    22  16:30  Spica 0.4°N of Moon
    24  20:21  Moon at Ascending Node 
    25  08:38  Mars 2.8°S of Moon
    25  13:40  FIRST QUARTER MOON 
    26  18:28  Jupiter 2.0°S of Moon
    29  12     Mercury at Greatest Elong: 18.2°W
    30  07:53  Moon at Perigee: 361684 km

Sep 01  04:20  FULL MOON 
    04  13     Mercury at Perihelion 
    06  11:34  Moon at Descending Node 
    08  00:21  Aldebaran 3.8°S of Moon
    08  11:14  LAST QUARTER MOON 
    09  00:03  Saturn 1.1°N of Moon: Occn.
    10  06:09  Mars 2.5°N of Antares
    11  06:54  Moon at Apogee: 405006 km
    13  05:17  Venus 0.4°S of Moon: Occn.
    16  13:47  NEW MOON 
    18  22:05  Spica 0.2°N of Moon
    20  21:24  Moon at Ascending Node 
    22  21:35  Mars 4.4°S of Moon
    23  00:15  Autumnal Equinox 
    23  03:42  Jupiter 2.5°S of Moon
    23  20:20  FIRST QUARTER MOON 
    23  20     Mercury at Superior Conjunction 
    27  02:09  Moon at Perigee: 366841 km
    28  20     Mars 2.2°S of Jupiter
    30  13:58  FULL MOON 

Oct 03  17:03  Moon at Descending Node 
    05  08:48  Aldebaran 3.6°S of Moon
    06  09:25  Saturn 1.3°N of Moon
    07  10     Neptune at Opposition 
    08  05:50  LAST QUARTER MOON 
    09  01:23  Moon at Apogee: 404365 km
    09  05:13  Venus 2.1°S of Regulus
    12  08:45  Venus 4.0°N of Moon
    16  03:21  NEW MOON 
    17  09:11  Mercury 0.2°S of Moon: Occn.
    18  01:54  Moon at Ascending Node 
    20  15:53  Jupiter 3.0°S of Moon
    21  08     Venus at Greatest Elong: 46.4°W
    21  20     Orionid Meteor Shower
    22  15:06  Moon at Perigee: 370022 km
    23  02:36  FIRST QUARTER MOON 
    30  02:33  FULL MOON 
    30  02:45  Pen. Lunar Eclipse; mag=0.716
    31  01:09  Moon at Descending Node 

Nov 01  17:35  Aldebaran 3.6°S of Moon
    02  16:32  Saturn 1.3°N of Moon
    05  20     S Taurid Meteor Shower
    05  21:45  Moon at Apogee: 404522 km
    07  02:02  LAST QUARTER MOON 
    09  05:11  Mercury 1.8°N of Antares
    09  10     Mercury at Greatest Elong: 23.1°E
    12  14:40  Spica 0.2°N of Moon
    12  20     N Taurid Meteor Shower
    14  10:32  Moon at Ascending Node 
    14  16:06  Hybrid Solar Eclipse; mag=1.011
    14  16:10  NEW MOON 
    16  03     Mars at Perihelion:  1.38145 AU
    16  05:48  Mercury 4.7°S of Moon
    17  07:51  Jupiter 3.4°S of Moon
    17  17:07  Moon at Perigee: 365930 km
    18  02     Leonid Meteor Shower
    21  09:45  FIRST QUARTER MOON 
    27  06     Venus at Perihelion 
    27  09:01  Moon at Descending Node 
    28  18:18  FULL MOON 
    28  20:24  Venus 3.9°N of Spica
    29  01:36  Aldebaran 3.6°S of Moon
    29  21:00  Saturn 1.1°N of Moon: Occn.
    29  22     Mercury at Inferior Conjunction 

Dec 01  12     Mercury at Perihelion 
    03  17:35  Moon at Apogee: 405355 km
    06  22:20  LAST QUARTER MOON 
    10  00:42  Spica 0.2°N of Moon
    11  04:18  Venus 3.3°N of Moon
    11  14     Saturn at Opposition 
    11  20:37  Moon at Ascending Node 
    12  17:17  Mercury 1.6°N of Moon
    14  04:06  NEW MOON 
    14  15     Geminid Meteor Shower
    15  16:31  Moon at Perigee: 360489 km
    17  06     Uranus at Opposition 
    18  05     Mercury at Greatest Elong: 21.5°W
    20  19:00  FIRST QUARTER MOON 
    21  20:56  Winter Solstice 
    23  00     Ursid Meteor Shower
    24  13:44  Moon at Descending Node 
    26  08:13  Aldebaran 3.6°S of Moon
    26  23:28  Saturn 1.0°N of Moon: Occn.
    28  12:33  FULL MOON 
    31  08:16  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

Eastern Standard Time

The following table gives the date and time of the Moon's phases for the year . The times listed are for Eastern Standard Time (Coordinated Universal Time − 5 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
Eastern Standard Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 08 13:26 Jan 16 07:47
Jan 22 23:31 Jan 30 02:43 Feb 07 07:46 Feb 14 17:50
Feb 21 10:49 Feb 28 23:02 Mar 08 23:30 Mar 16 01:36
Mar 22 22:49 Mar 30 19:32 Apr 07 12:21 Apr 14 07:58
Apr 21 11:57 Apr 29 14:19 May 06 22:40 n May 13 14:07
May 21 02:17 A May 29 06:20 Jun 05 06:58 n Jun 11 21:20
Jun 19 17:25 Jun 27 19:19 Jul 04 14:01 Jul 11 06:50
Jul 19 08:40 Jul 27 05:35 Aug 02 20:45 Aug 09 19:24
Aug 17 23:32 Aug 25 13:40 Sep 01 04:20 Sep 08 11:14
Sep 16 13:47 Sep 23 20:20 Sep 30 13:58 Oct 08 05:50
Oct 16 03:21 Oct 23 02:36 Oct 30 02:33 n Nov 07 02:02
Nov 14 16:10 H Nov 21 09:45 Nov 28 18:18 Dec 06 22:20
Dec 14 04:06 Dec 20 19:00 Dec 28 12:33 -

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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