2031 Sky Event Almanac

Hawaiian Standard Time

The following table gives the date and time of the important astronomical events for the year . The times listed are for Hawaiian Standard Time (Coordinated Universal Time − 10 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
Hawaiian Standard Time
January - June July - December 
Date     HST   Event
        (h:m)

Jan 03  04:09  Mars 3.6°N of Spica
    03  18     Quadrantid Meteor Shower
    04  04:42  Pleiades 3.5°N of Moon
    04  10     Mercury at Greatest Elong: 22.9°W
    04  11     Earth at Perihelion: 0.98326 AU
    04  12:42  Saturn 2.4°S of Moon
    04  20:37  Moon at Descending Node 
    06  01:00  Moon at Apogee: 406169 km
    08  08:26  FULL MOON 
    15  23:36  Spica 1.5°N of Moon
    16  02:47  LAST QUARTER MOON 
    18  22:51  Moon at Ascending Node 
    19  03:49  Antares 4.9°S of Moon
    19  20:34  Jupiter 0.6°S of Moon: Occn.
    21  11:41  Moon at Perigee: 359637 km
    21  11:53  Mercury 3.7°S of Moon
    22  18:31  NEW MOON 
    27  10     Mercury at Aphelion 
    29  21:43  FIRST QUARTER MOON 
    31  11:26  Pleiades 3.7°N of Moon
    31  17:57  Saturn 2.2°S of Moon
    31  23:25  Moon at Descending Node 

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

Mar 02  08:57  Moon at Apogee: 404533 km
    08  18:30  FULL MOON 
    11  10:44  Spica 1.0°N of Moon
    12  09     Mercury at Perihelion 
    13  09:27  Mars 2.7°N of Moon
    14  01:38  Moon at Ascending Node 
    15  20:36  LAST QUARTER MOON 
    16  00:06  Jupiter 1.8°S of Moon
    17  08:58  Moon at Perigee: 369634 km
    18  02     Mercury at Greatest Elong: 18.5°E
    20  09:41  Vernal Equinox 
    22  17:49  NEW MOON 
    24  00:55  Mercury 0.1°S of Moon: Occn.
    25  18:40  Venus 0.9°S of Moon: Occn.
    27  03:44  Pleiades 4.2°N of Moon
    27  04:22  Moon at Descending Node 
    27  15:01  Saturn 1.2°S of Moon
    28  02:30  Aldebaran 4.5°S of Moon
    30  05:24  Moon at Apogee: 404227 km
    30  14:32  FIRST QUARTER MOON 

Apr 02  13     Neptune in Conjunction with Sun 
    04  10     Mercury at Inferior Conjunction 
    07  07:21  FULL MOON 
    07  18:35  Spica 0.9°N of Moon
    09  16:38  Mars 2.1°N of Moon
    10  04:56  Moon at Ascending Node 
    10  08:05  Venus 2.4°S of Pleiades
    11  09:13  Moon at Perigee: 367996 km
    12  07:56  Jupiter 2.1°S of Moon
    14  02:58  LAST QUARTER MOON 
    15  17     Venus 3.4°N of Saturn
    16  09     Venus at Perihelion 
    21  06:57  NEW MOON 
    22  16     Lyrid Meteor Shower
    23  10:22  Moon at Descending Node 
    23  11:56  Pleiades 4.3°N of Moon
    24  04:42  Saturn 0.7°S of Moon: Occn.
    24  10:36  Aldebaran 4.4°S of Moon
    24  22:28  Venus 3.9°N of Moon
    27  00:30  Moon at Apogee: 404758 km
    29  09:19  FIRST QUARTER MOON 

May 02  10     Mercury at Greatest Elong: 26.9°W
    04  01     Mars at Opposition 
    05  04:17  Spica 1.0°N of Moon
    05  05     Eta-Aquarid Meteor Shower
    06  12:45  Mars 1.9°N of Moon
    06  17:40  FULL MOON 
    06  17:51  Pen. Lunar Eclipse; mag=0.881
    07  12:55  Moon at Ascending Node 
    08  21:28  Moon at Perigee: 362851 km
    09  13:39  Jupiter 2.1°S of Moon
    13  09:07  LAST QUARTER MOON 
    13  20:50  Saturn 3.9°N of Aldebaran
    19  04:37  Mercury 4.4°S of Moon
    20  17:26  Moon at Descending Node 
    20  21:15  Annular Solar Eclipse; mag=0.959
    20  21:17  NEW MOON 
    24  16:08  Moon at Apogee: 405723 km
    28  23:28  Venus 3.9°S of Pollux
    29  01:20  FIRST QUARTER MOON 

Jun 01  14:22  Spica 1.0°N of Moon
    01  17     Venus at Greatest Elong: 45.4°E
    02  09:58  Mars 1.4°N of Moon
    02  17     Saturn in Conjunction with Sun 
    03  23:20  Moon at Ascending Node 
    05  01:44  Pen. Lunar Eclipse; mag=0.129
    05  01:58  FULL MOON 
    05  18:42  Jupiter 1.9°S of Moon
    06  02:11  Moon at Perigee: 358744 km
    08  09     Mercury at Superior Conjunction 
    08  09     Mercury at Perihelion 
    11  16:21  LAST QUARTER MOON 
    13  22     Uranus in Conjunction with Sun 
    14  21     Jupiter at Opposition 
    16  23:18  Moon at Descending Node 
    17  01:08  Pleiades 4.3°N of Moon
    18  00:02  Aldebaran 4.4°S of Moon
    19  12:25  NEW MOON 
    21  01:25  Moon at Apogee: 406452 km
    21  03:17  Summer Solstice 
    25  19:02  Mercury 4.7°S of Pollux
    27  14:19  FIRST QUARTER MOON 
    28  23:14  Spica 0.9°N of Moon
    29  20:41  Mars 0.4°N of Moon: Occn.


Date     HST   Event
        (h:m)

Jul 01  08:35  Moon at Ascending Node 
    03  00:02  Jupiter 1.7°S of Moon
    04  09:01  FULL MOON 
    04  11:14  Moon at Perigee: 357008 km
    05  20     Earth at Aphelion: 1.01669 AU
    11  01:50  LAST QUARTER MOON 
    14  02:38  Moon at Descending Node 
    14  06:49  Pleiades 4.4°N of Moon
    14  21     Mercury at Greatest Elong: 26.6°E
    15  05:49  Aldebaran 4.3°S of Moon
    15  20:23  Saturn 0.4°N of Moon: Occn.
    16  02:17  Venus 1.3°S of Regulus
    18  04:28  Moon at Apogee: 406535 km
    19  03:40  NEW MOON 
    21  13:10  Mercury 3.3°N of Moon
    21  16:15  Venus 1.6°N of Moon
    22  08     Mercury at Aphelion 
    25  08     Mercury 1.6°N of Venus
    26  06:05  Spica 0.6°N of Moon
    27  00:35  FIRST QUARTER MOON 
    27  20:06  Mars 1.1°S of Moon: Occn.
    28  07     Delta-Aquarid Meteor Shower
    28  13:54  Moon at Ascending Node 
    30  06:09  Jupiter 1.7°S of Moon

Aug 01  20:47  Moon at Perigee: 358060 km
    02  15:45  FULL MOON 
    06  17     Venus at Aphelion 
    09  14:24  LAST QUARTER MOON 
    10  04:10  Moon at Descending Node 
    10  17     Venus at Inferior Conjunction 
    11  12:01  Aldebaran 4.1°S of Moon
    11  18     Mercury at Inferior Conjunction 
    12  08:11  Saturn 0.7°N of Moon: Occn.
    12  23     Perseid Meteor Shower
    14  11:37  Moon at Apogee: 405946 km
    17  18:32  NEW MOON 
    22  11:30  Spica 0.4°N of Moon
    24  15:21  Moon at Ascending Node 
    25  03:38  Mars 2.8°S of Moon
    25  08:40  FIRST QUARTER MOON 
    26  13:28  Jupiter 2.0°S of Moon
    29  07     Mercury at Greatest Elong: 18.2°W
    30  02:53  Moon at Perigee: 361684 km
    31  23:20  FULL MOON 

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

Oct 03  12:03  Moon at Descending Node 
    05  03:48  Aldebaran 3.6°S of Moon
    06  04:25  Saturn 1.3°N of Moon
    07  05     Neptune at Opposition 
    08  00:50  LAST QUARTER MOON 
    08  20:23  Moon at Apogee: 404365 km
    09  00:13  Venus 2.1°S of Regulus
    12  03:45  Venus 4.0°N of Moon
    15  22:21  NEW MOON 
    17  04:11  Mercury 0.2°S of Moon: Occn.
    17  20:54  Moon at Ascending Node 
    20  10:53  Jupiter 3.0°S of Moon
    21  03     Venus at Greatest Elong: 46.4°W
    21  15     Orionid Meteor Shower
    22  10:06  Moon at Perigee: 370022 km
    22  21:36  FIRST QUARTER MOON 
    29  21:33  FULL MOON 
    29  21:45  Pen. Lunar Eclipse; mag=0.716
    30  20:09  Moon at Descending Node 

Nov 01  12:35  Aldebaran 3.6°S of Moon
    02  11:32  Saturn 1.3°N of Moon
    05  15     S Taurid Meteor Shower
    05  16:45  Moon at Apogee: 404522 km
    06  21:02  LAST QUARTER MOON 
    09  00:11  Mercury 1.8°N of Antares
    09  05     Mercury at Greatest Elong: 23.1°E
    12  09:40  Spica 0.2°N of Moon
    12  15     N Taurid Meteor Shower
    14  05:32  Moon at Ascending Node 
    14  11:06  Hybrid Solar Eclipse; mag=1.011
    14  11:10  NEW MOON 
    15  22     Mars at Perihelion:  1.38145 AU
    16  00:48  Mercury 4.7°S of Moon
    17  02:51  Jupiter 3.4°S of Moon
    17  12:07  Moon at Perigee: 365930 km
    17  21     Leonid Meteor Shower
    21  04:45  FIRST QUARTER MOON 
    27  01     Venus at Perihelion 
    27  04:01  Moon at Descending Node 
    28  13:18  FULL MOON 
    28  15:24  Venus 3.9°N of Spica
    28  20:36  Aldebaran 3.6°S of Moon
    29  16:00  Saturn 1.1°N of Moon: Occn.
    29  17     Mercury at Inferior Conjunction 

Dec 01  07     Mercury at Perihelion 
    03  12:35  Moon at Apogee: 405355 km
    06  17:20  LAST QUARTER MOON 
    09  19:42  Spica 0.2°N of Moon
    10  23:18  Venus 3.3°N of Moon
    11  09     Saturn at Opposition 
    11  15:37  Moon at Ascending Node 
    12  12:17  Mercury 1.6°N of Moon
    13  23:06  NEW MOON 
    14  10     Geminid Meteor Shower
    15  11:31  Moon at Perigee: 360489 km
    17  01     Uranus at Opposition 
    18  00     Mercury at Greatest Elong: 21.5°W
    20  14:00  FIRST QUARTER MOON 
    21  15:56  Winter Solstice 
    22  19     Ursid Meteor Shower
    24  08:44  Moon at Descending Node 
    26  03:13  Aldebaran 3.6°S of Moon
    26  18:28  Saturn 1.0°N of Moon: Occn.
    28  07:33  FULL MOON 
    31  03:16  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

Hawaiian Standard Time

The following table gives the date and time of the Moon's phases for the year . The times listed are for Hawaiian Standard Time (Coordinated Universal Time − 10 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
Hawaiian Standard Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 08 08:26 Jan 16 02:47
Jan 22 18:31 Jan 29 21:43 Feb 07 02:46 Feb 14 12:50
Feb 21 05:49 Feb 28 18:02 Mar 08 18:30 Mar 15 20:36
Mar 22 17:49 Mar 30 14:32 Apr 07 07:21 Apr 14 02:58
Apr 21 06:57 Apr 29 09:19 May 06 17:40 n May 13 09:07
May 20 21:17 A May 29 01:20 Jun 05 01:58 n Jun 11 16:20
Jun 19 12:25 Jun 27 14:19 Jul 04 09:01 Jul 11 01:50
Jul 19 03:40 Jul 27 00:35 Aug 02 15:45 Aug 09 14:24
Aug 17 18:32 Aug 25 08:40 Aug 31 23:20 Sep 08 06:14
Sep 16 08:47 Sep 23 15:20 Sep 30 08:58 Oct 08 00:50
Oct 15 22:21 Oct 22 21:36 Oct 29 21:33 n Nov 06 21:02
Nov 14 11:10 H Nov 21 04:45 Nov 28 13:18 Dec 06 17:20
Dec 13 23:06 Dec 20 14:00 Dec 28 07:33 -

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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