2100 Sky Event Almanac

Alaska Standard Time

The following table gives the date and time of the important astronomical events for the year. The times listed are for Alaska Standard Time (Coordinated Universal Time − 9 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.

2100 Sky Event Almanac
Alaska Standard Time
January - June July - December
Date     AKST   Even
        (h:m)

Jan 01  12:12  Moon at Descending Node 
    02  23:57  Moon at Perigee: 370356 km
    03  04:03  LAST QUARTER MOON 
    03  05     Earth at Perihelion: 0.98334 AU
    03  21:14  Jupiter 4.4°N of Moon
    03  22:44  Spica 0.9°N of Moon
    04  12     Quadrantid Meteor Shower
    07  04:44  Antares 0.4°N of Moon
    10  03:55  NEW MOON 
    13  17:33  Venus 0.3°S of Moon: Occn.
    14  18:55  Moon at Ascending Node 
    17  01:48  Moon at Apogee: 404420 km
    18  03:34  FIRST QUARTER MOON 
    19  00:13  Mars 2.9°S of Moon
    20  18:18  Pleiades 0.8°S of Moon
    23  07     Mercury at Greatest Elong: 18.6°E
    24  20:21  Pollux 2.5°N of Moon
    25  17:49  FULL MOON 
    27  08:51  Regulus 1.3°S of Moon
    28  15:34  Moon at Descending Node 
    28  16     Mercury at Perihelion 
    28  20:53  Moon at Perigee: 366241 km
    29  22:40  Jupiter 3.4°N of Spica
    31  04:20  Spica 1.1°N of Moon
    31  05:44  Jupiter 4.9°N of Moon

Feb 01  12:16  LAST QUARTER MOON 
    03  10:39  Antares 0.6°N of Moon
    07  19     Mercury at Inferior Conjunction 
    08  19:55  NEW MOON 
    09  12     Jupiter 3.3°N of Saturn
    11  00:32  Moon at Ascending Node 
    13  00:00  Venus 1.6°S of Moon
    13  21:46  Moon at Apogee: 405204 km
    16  14:13  Mars 3.5°S of Moon
    17  00:22  FIRST QUARTER MOON 
    17  02:59  Pleiades 1.0°S of Moon
    21  06:41  Pollux 2.5°N of Moon
    23  18:59  Regulus 1.2°S of Moon
    24  05:51  FULL MOON 
    24  06:02  Pen. Lunar Eclipse; mag=0.965
    25  00:10  Moon at Descending Node 
    25  20:17  Moon at Perigee: 360805 km
    27  11:48  Spica 1.2°N of Moon

Mar 01  07:09  Mars 2.5°S of Pleiades
    01  21     Venus at Greatest Elong: 46.5°E
    02  16:12  Antares 0.7°N of Moon
    02  21:11  LAST QUARTER MOON 
    05  14     Mercury at Greatest Elong: 27.2°W
    06  03     Neptune at Opposition 
    08  02:09  Mercury 1.7°N of Moon
    10  07:26  Moon at Ascending Node 
    10  13:25  Annular Solar Eclipse; mag=0.934
    10  13:28  NEW MOON 
    11  08     Jupiter at Aphelion:  5.45256 AU
    11  21     Venus at Perihelion 
    13  12:09  Moon at Apogee: 406110 km
    13  16     Mercury at Aphelion 
    14  19:07  Venus 0.8°S of Moon: Occn.
    16  10:19  Pleiades 1.0°S of Moon
    17  05:21  Mars 3.8°S of Moon
    18  17:58  FIRST QUARTER MOON 
    20  04:04  Vernal Equinox 
    20  16:24  Pollux 2.5°N of Moon
    23  05:58  Regulus 1.2°S of Moon
    24  11:16  Moon at Descending Node 
    25  16:05  FULL MOON 
    26  05:59  Moon at Perigee: 357415 km
    26  17:54  Jupiter 4.9°N of Moon
    26  21:47  Spica 1.2°N of Moon
    29  23:33  Antares 0.6°N of Moon

Apr 01  07:35  LAST QUARTER MOON 
    01  08:32  Saturn 4.5°N of Spica
    06  13:09  Moon at Ascending Node 
    07  15     Jupiter at Opposition 
    09  07:16  NEW MOON 
    09  16:45  Moon at Apogee: 406566 km
    11  01     Uranus in Conjunction with Sun 
    12  13:33  Venus 1.0°N of Moon: Occn.
    12  16:28  Pleiades 0.9°S of Moon
    12  19     Saturn at Opposition 
    14  20:02  Mars 3.6°S of Moon
    15  11:18  Venus 1.8°N of Pleiades
    17  00:11  Pollux 2.6°N of Moon
    17  07:42  FIRST QUARTER MOON 
    18  08     Mercury at Superior Conjunction 
    19  15:47  Regulus 1.1°S of Moon
    20  20:32  Moon at Descending Node 
    22  23:33  Jupiter 4.6°N of Moon
    23  08:57  Spica 1.2°N of Moon
    23  09     Lyrid Meteor Shower
    23  17:14  Moon at Perigee: 357008 km
    24  00:43  FULL MOON 
    26  09:11  Antares 0.5°N of Moon
    26  15     Mercury at Perihelion 
    26  16:31  Venus 1.6°N of Pleiades
    30  20:01  LAST QUARTER MOON 

May 02  11     Mercury 3.6°S of Venus
    03  16:18  Moon at Ascending Node 
    03  16:20  Mercury 2.1°S of Pleiades
    05  22     Eta-Aquarid Meteor Shower
    06  20:13  Moon at Apogee: 406376 km
    08  23:54  NEW MOON 
    10  21:23  Mercury 2.6°S of Moon
    12  03     Venus at Inferior Conjunction 
    13  10:07  Mars 3.0°S of Moon
    14  06:11  Pollux 2.8°N of Moon
    16  07     Mercury at Greatest Elong: 21.9°E
    16  17:42  FIRST QUARTER MOON 
    16  23:20  Regulus 0.9°S of Moon
    18  01:10  Moon at Descending Node 
    20  05:23  Jupiter 4.5°N of Moon
    20  19:14  Spica 1.3°N of Moon
    22  02:04  Moon at Perigee: 359498 km
    23  08:25  FULL MOON 
    23  19:50  Antares 0.4°N of Moon
    30  10:35  LAST QUARTER MOON 
    30  17:54  Moon at Ascending Node 

Jun 03  08:09  Moon at Apogee: 405537 km
    06  04:40  Pleiades 0.8°S of Moon
    07  14:31  NEW MOON 
    09  20     Mercury at Inferior Conjunction 
    10  11:46  Pollux 3.0°N of Moon
    11  00:09  Mars 2.0°S of Moon
    13  05:08  Regulus 0.6°S of Moon
    14  02:13  Moon at Descending Node 
    15  00:41  FIRST QUARTER MOON 
    16  12:04  Jupiter 4.5°N of Moon
    17  03:21  Spica 1.5°N of Moon
    19  03:17  Moon at Perigee: 364024 km
    20  05:43  Antares 0.5°N of Moon
    20  20:32  Summer Solstice 
    21  16:11  FULL MOON 
    26  20:36  Moon at Ascending Node 
    29  02:52  LAST QUARTER MOON 

Date     AKST   Even
        (h:m)

Jul 01  00:51  Moon at Apogee: 404573 km
    02  06     Venus at Aphelion 
    03  12:03  Pleiades 0.9°S of Moon
    03  21     Mercury at Greatest Elong: 21.7°W
    06  07     Earth at Aphelion: 1.01670 AU
    07  03:06  NEW MOON 
    09  14:44  Mars 0.7°S of Moon: Occn.
    10  10:51  Regulus 0.4°S of Moon
    11  03:41  Moon at Descending Node 
    12  10     Mars at Aphelion:  1.66621 AU
    13  20:37  Jupiter 4.8°N of Moon
    14  05:43  FIRST QUARTER MOON 
    14  09:24  Spica 1.7°N of Moon
    16  05:15  Moon at Perigee: 368737 km
    17  09:01  Venus 1.8°N of Aldebaran
    17  13:36  Antares 0.6°N of Moon
    21  01:12  FULL MOON 
    21  07     Venus at Greatest Elong: 45.7°W
    23  14     Mercury at Perihelion 
    24  02:04  Moon at Ascending Node 
    27  17:09  Mars 0.6°N of Regulus
    28  19:16  Moon at Apogee: 404176 km
    28  20:09  LAST QUARTER MOON 
    29  00     Delta-Aquarid Meteor Shower
    30  20:10  Pleiades 1.1°S of Moon
    31  21     Mercury at Superior Conjunction 

Aug 04  02:29  Pollux 3.1°N of Moon
    05  14:02  NEW MOON 
    06  18:01  Regulus 0.3°S of Moon
    07  06:15  Mars 1.0°N of Moon: Occn.
    07  08:49  Moon at Descending Node 
    10  07:07  Moon at Perigee: 368679 km
    10  14:56  Spica 1.9°N of Moon
    12  10:10  FIRST QUARTER MOON 
    13  16     Perseid Meteor Shower
    13  19:33  Antares 0.7°N of Moon
    19  09     Mercury 0.1°S of Mars
    19  12:29  FULL MOON 
    19  12:42  Pen. Lunar Eclipse; mag=0.872
    20  09:38  Moon at Ascending Node 
    25  14:00  Moon at Apogee: 404637 km
    27  04:20  Pleiades 1.2°S of Moon
    27  13:36  LAST QUARTER MOON 
    31  11:48  Pollux 3.0°N of Moon

Sep 03  17:41  Moon at Descending Node 
    03  23:46  Total Solar Eclipse; mag=1.040
    03  23:49  NEW MOON 
    05  14     Mercury at Aphelion 
    05  16:58  Saturn 4.0°N of Spica
    05  22:18  Mercury 1.3°N of Moon
    06  10:23  Moon at Perigee: 363868 km
    06  21:52  Spica 1.9°N of Moon
    09  06     Neptune in Conjunction with Sun 
    09  18:46  Jupiter 2.9°N of Spica
    10  01:01  Antares 0.7°N of Moon
    10  15:35  FIRST QUARTER MOON 
    13  07     Mercury at Greatest Elong: 26.8°E
    15  11     Jupiter 1.2°S of Saturn
    16  16:55  Moon at Ascending Node 
    18  02:32  FULL MOON 
    21  03:08  Mercury 1.2°S of Spica
    22  07:20  Moon at Apogee: 405610 km
    22  13:00  Autumnal Equinox 
    23  11:47  Pleiades 1.1°S of Moon
    26  06:33  LAST QUARTER MOON 
    27  21:01  Pollux 3.1°N of Moon
    28  18:33  Venus 0.1°N of Regulus
    30  13:30  Regulus 0.3°S of Moon
    30  17:47  Venus 0.2°N of Moon: Occn.

Oct 01  03:42  Moon at Descending Node 
    01  04:33  Mercury 1.4°S of Spica
    03  09:02  NEW MOON 
    04  12:58  Moon at Perigee: 359240 km
    07  07:59  Antares 0.6°N of Moon
    08  22     Mercury at Inferior Conjunction 
    09  23:33  FIRST QUARTER MOON 
    10  22     Mars in Conjunction with Sun 
    13  21:34  Moon at Ascending Node 
    16  14     Uranus at Opposition 
    17  19:06  FULL MOON 
    19  14     Mercury at Perihelion 
    19  19:03  Moon at Apogee: 406359 km
    20  18:17  Pleiades 1.0°S of Moon
    22  08     Orionid Meteor Shower
    22  12     Saturn in Conjunction with Sun 
    22  14     Venus at Perihelion 
    24  11     Mercury at Greatest Elong: 18.3°W
    25  04:55  Pollux 3.3°N of Moon
    25  22:19  LAST QUARTER MOON 
    26  12     Jupiter in Conjunction with Sun 
    27  23:20  Regulus 0.1°S of Moon
    28  11:11  Moon at Descending Node 
    30  20:06  Venus 4.9°N of Moon
    31  18:16  Spica 1.8°N of Moon

Nov 01  13:38  Mercury 3.7°N of Spica
    01  18:14  NEW MOON 
    01  23:19  Moon at Perigee: 356834 km
    03  17:28  Antares 0.5°N of Moon
    06  09     S Taurid Meteor Shower
    08  11:15  FIRST QUARTER MOON 
    09  23:09  Moon at Ascending Node 
    12  01:56  Venus 3.5°N of Spica
    13  08     N Taurid Meteor Shower
    15  20:23  Moon at Apogee: 406471 km
    16  13:19  FULL MOON 
    17  00:19  Pleiades 0.9°S of Moon
    18  15     Leonid Meteor Shower
    19  03     Venus 0.6°S of Saturn
    21  11:10  Pollux 3.5°N of Moon
    24  07:11  Regulus 0.2°N of Moon
    24  12:13  LAST QUARTER MOON 
    24  13:59  Moon at Descending Node 
    25  03     Venus 0.5°N of Jupiter
    27  22     Mercury at Superior Conjunction 
    28  05:04  Spica 2.0°N of Moon
    30  11:37  Moon at Perigee: 357592 km

Dec 01  04:00  NEW MOON 
    07  00:24  Moon at Ascending Node 
    08  03:09  FIRST QUARTER MOON 
    10  06     Venus 1.0°N of Mars
    13  01:26  Moon at Apogee: 406012 km
    14  06:41  Pleiades 0.9°S of Moon
    15  04     Geminid Meteor Shower
    16  08:00  FULL MOON 
    18  16:52  Pollux 3.7°N of Moon
    21  10:51  Winter Solstice 
    21  13:07  Regulus 0.4°N of Moon
    21  14:25  Moon at Descending Node 
    23  12     Ursid Meteor Shower
    23  23:46  LAST QUARTER MOON 
    25  13:38  Spica 2.2°N of Moon
    25  17:43  Mars 4.4°N of Antares
    28  15:24  Antares 0.4°N of Moon
    28  19:56  Mars 4.9°N of Moon
    28  20:45  Moon at Perigee: 361469 km
    30  14:56  NEW MOON 

    

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

2100 Phases of the Moon

Alaska Standard Time

The following table gives the date and time of the Moon's phases for the year. The times listed are for Alaska Standard Time (Coordinated Universal Time − 9 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.

2100 Phases of the Moon
Alaska Standard Time
New Moon First Quarter Full Moon Last Quarter
--- Jan 03 04:03
Jan 10 03:55 Jan 18 03:34 Jan 25 17:49 Feb 01 12:16
Feb 08 19:55 Feb 17 00:22 Feb 24 05:51 n Mar 02 21:11
Mar 10 13:28 A Mar 18 17:58 Mar 25 16:05 Apr 01 07:35
Apr 09 07:16 Apr 17 07:42 Apr 24 00:43 Apr 30 20:01
May 08 23:54 May 16 17:42 May 23 08:25 May 30 10:35
Jun 07 14:31 Jun 15 00:41 Jun 21 16:11 Jun 29 02:52
Jul 07 03:06 Jul 14 05:43 Jul 21 01:12 Jul 28 20:09
Aug 05 14:02 Aug 12 10:10 Aug 19 12:29 n Aug 27 13:36
Sep 03 23:49 T Sep 10 15:35 Sep 18 02:32 Sep 26 06:33
Oct 03 09:03 Oct 09 23:33 Oct 17 19:06 Oct 25 22:19
Nov 01 18:14 Nov 08 11:15 Nov 16 13:19 Nov 24 12:13
Dec 01 04:00 Dec 08 03:09 Dec 16 08:00 Dec 23 23:46
Dec 30 14:56 ---

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: 2091 to 2100

The Americas

Below are links to sky event almanacs from 2091 to 2100 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 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
AST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
EST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
CST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
MST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
PST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
AKST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
HST 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100

        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

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


Useful External Links

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