2100 Sky Event Almanac

Argentina Time

The following table gives the date and time of the important astronomical events for the year. The times listed are for Argentina Time (Coordinated Universal Time − 3 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
Argentina Time
January - June July - December
Date     ART   Event
        (h:m)

Jan 01  18:12  Moon at Descending Node 
    03  05:57  Moon at Perigee: 370356 km
    03  10:03  LAST QUARTER MOON 
    03  11     Earth at Perihelion: 0.98334 AU
    04  03:14  Jupiter 4.4°N of Moon
    04  04:44  Spica 0.9°N of Moon
    04  18     Quadrantid Meteor Shower
    07  10:44  Antares 0.4°N of Moon
    10  09:55  NEW MOON 
    13  23:33  Venus 0.3°S of Moon: Occn.
    15  00:55  Moon at Ascending Node 
    17  07:48  Moon at Apogee: 404420 km
    18  09:34  FIRST QUARTER MOON 
    19  06:13  Mars 2.9°S of Moon
    21  00:18  Pleiades 0.8°S of Moon
    23  13     Mercury at Greatest Elong: 18.6°E
    25  02:21  Pollux 2.5°N of Moon
    25  23:49  FULL MOON 
    27  14:51  Regulus 1.3°S of Moon
    28  21:34  Moon at Descending Node 
    28  22     Mercury at Perihelion 
    29  02:53  Moon at Perigee: 366241 km
    30  04:40  Jupiter 3.4°N of Spica
    31  10:20  Spica 1.1°N of Moon
    31  11:44  Jupiter 4.9°N of Moon

Feb 01  18:16  LAST QUARTER MOON 
    03  16:39  Antares 0.6°N of Moon
    08  01     Mercury at Inferior Conjunction 
    09  01:55  NEW MOON 
    09  18     Jupiter 3.3°N of Saturn
    11  06:32  Moon at Ascending Node 
    13  06:00  Venus 1.6°S of Moon
    14  03:46  Moon at Apogee: 405204 km
    16  20:13  Mars 3.5°S of Moon
    17  06:22  FIRST QUARTER MOON 
    17  08:59  Pleiades 1.0°S of Moon
    21  12:41  Pollux 2.5°N of Moon
    24  00:59  Regulus 1.2°S of Moon
    24  11:51  FULL MOON 
    24  12:02  Pen. Lunar Eclipse; mag=0.965
    25  06:10  Moon at Descending Node 
    26  02:17  Moon at Perigee: 360805 km
    27  17:48  Spica 1.2°N of Moon

Mar 01  13:09  Mars 2.5°S of Pleiades
    02  03     Venus at Greatest Elong: 46.5°E
    02  22:12  Antares 0.7°N of Moon
    03  03:11  LAST QUARTER MOON 
    05  20     Mercury at Greatest Elong: 27.2°W
    06  09     Neptune at Opposition 
    08  08:09  Mercury 1.7°N of Moon
    10  13:26  Moon at Ascending Node 
    10  19:25  Annular Solar Eclipse; mag=0.934
    10  19:28  NEW MOON 
    11  14     Jupiter at Aphelion:  5.45256 AU
    12  03     Venus at Perihelion 
    13  18:09  Moon at Apogee: 406110 km
    13  22     Mercury at Aphelion 
    15  01:07  Venus 0.8°S of Moon: Occn.
    16  16:19  Pleiades 1.0°S of Moon
    17  11:21  Mars 3.8°S of Moon
    18  23:58  FIRST QUARTER MOON 
    20  10:04  Vernal Equinox 
    20  22:24  Pollux 2.5°N of Moon
    23  11:58  Regulus 1.2°S of Moon
    24  17:16  Moon at Descending Node 
    25  22:05  FULL MOON 
    26  11:59  Moon at Perigee: 357415 km
    26  23:54  Jupiter 4.9°N of Moon
    27  03:47  Spica 1.2°N of Moon
    30  05:33  Antares 0.6°N of Moon

Apr 01  13:35  LAST QUARTER MOON 
    01  14:32  Saturn 4.5°N of Spica
    06  19:09  Moon at Ascending Node 
    07  21     Jupiter at Opposition 
    09  13:16  NEW MOON 
    09  22:45  Moon at Apogee: 406566 km
    11  07     Uranus in Conjunction with Sun 
    12  19:33  Venus 1.0°N of Moon: Occn.
    12  22:28  Pleiades 0.9°S of Moon
    13  01     Saturn at Opposition 
    15  02:02  Mars 3.6°S of Moon
    15  17:18  Venus 1.8°N of Pleiades
    17  06:11  Pollux 2.6°N of Moon
    17  13:42  FIRST QUARTER MOON 
    18  14     Mercury at Superior Conjunction 
    19  21:47  Regulus 1.1°S of Moon
    21  02:32  Moon at Descending Node 
    23  05:33  Jupiter 4.6°N of Moon
    23  14:57  Spica 1.2°N of Moon
    23  15     Lyrid Meteor Shower
    23  23:14  Moon at Perigee: 357008 km
    24  06:43  FULL MOON 
    26  15:11  Antares 0.5°N of Moon
    26  21     Mercury at Perihelion 
    26  22:31  Venus 1.6°N of Pleiades

May 01  02:01  LAST QUARTER MOON 
    02  17     Mercury 3.6°S of Venus
    03  22:18  Moon at Ascending Node 
    03  22:20  Mercury 2.1°S of Pleiades
    06  04     Eta-Aquarid Meteor Shower
    07  02:13  Moon at Apogee: 406376 km
    09  05:54  NEW MOON 
    11  03:23  Mercury 2.6°S of Moon
    12  09     Venus at Inferior Conjunction 
    13  16:07  Mars 3.0°S of Moon
    14  12:11  Pollux 2.8°N of Moon
    16  13     Mercury at Greatest Elong: 21.9°E
    16  23:42  FIRST QUARTER MOON 
    17  05:20  Regulus 0.9°S of Moon
    18  07:10  Moon at Descending Node 
    20  11:23  Jupiter 4.5°N of Moon
    21  01:14  Spica 1.3°N of Moon
    22  08:04  Moon at Perigee: 359498 km
    23  14:25  FULL MOON 
    24  01:50  Antares 0.4°N of Moon
    30  16:35  LAST QUARTER MOON 
    30  23:54  Moon at Ascending Node 

Jun 03  14:09  Moon at Apogee: 405537 km
    06  10:40  Pleiades 0.8°S of Moon
    07  20:31  NEW MOON 
    10  02     Mercury at Inferior Conjunction 
    10  17:46  Pollux 3.0°N of Moon
    11  06:09  Mars 2.0°S of Moon
    13  11:08  Regulus 0.6°S of Moon
    14  08:13  Moon at Descending Node 
    15  06:41  FIRST QUARTER MOON 
    16  18:04  Jupiter 4.5°N of Moon
    17  09:21  Spica 1.5°N of Moon
    19  09:17  Moon at Perigee: 364024 km
    20  11:43  Antares 0.5°N of Moon
    21  02:32  Summer Solstice 
    21  22:11  FULL MOON 
    27  02:36  Moon at Ascending Node 
    29  08:52  LAST QUARTER MOON 

Date     ART   Event
        (h:m)

Jul 01  06:51  Moon at Apogee: 404573 km
    02  12     Venus at Aphelion 
    03  18:03  Pleiades 0.9°S of Moon
    04  03     Mercury at Greatest Elong: 21.7°W
    06  13     Earth at Aphelion: 1.01670 AU
    07  09:06  NEW MOON 
    09  20:44  Mars 0.7°S of Moon: Occn.
    10  16:51  Regulus 0.4°S of Moon
    11  09:41  Moon at Descending Node 
    12  16     Mars at Aphelion:  1.66621 AU
    14  02:37  Jupiter 4.8°N of Moon
    14  11:43  FIRST QUARTER MOON 
    14  15:24  Spica 1.7°N of Moon
    16  11:15  Moon at Perigee: 368737 km
    17  15:01  Venus 1.8°N of Aldebaran
    17  19:36  Antares 0.6°N of Moon
    21  07:12  FULL MOON 
    21  13     Venus at Greatest Elong: 45.7°W
    23  20     Mercury at Perihelion 
    24  08:04  Moon at Ascending Node 
    27  23:09  Mars 0.6°N of Regulus
    29  01:16  Moon at Apogee: 404176 km
    29  02:09  LAST QUARTER MOON 
    29  06     Delta-Aquarid Meteor Shower
    31  02:10  Pleiades 1.1°S of Moon

Aug 01  03     Mercury at Superior Conjunction 
    04  08:29  Pollux 3.1°N of Moon
    05  20:02  NEW MOON 
    07  00:01  Regulus 0.3°S of Moon
    07  12:15  Mars 1.0°N of Moon: Occn.
    07  14:49  Moon at Descending Node 
    10  13:07  Moon at Perigee: 368679 km
    10  20:56  Spica 1.9°N of Moon
    12  16:10  FIRST QUARTER MOON 
    13  22     Perseid Meteor Shower
    14  01:33  Antares 0.7°N of Moon
    19  15     Mercury 0.1°S of Mars
    19  18:29  FULL MOON 
    19  18:42  Pen. Lunar Eclipse; mag=0.872
    20  15:38  Moon at Ascending Node 
    25  20:00  Moon at Apogee: 404637 km
    27  10:20  Pleiades 1.2°S of Moon
    27  19:36  LAST QUARTER MOON 
    31  17:48  Pollux 3.0°N of Moon

Sep 03  23:41  Moon at Descending Node 
    04  05:46  Total Solar Eclipse; mag=1.040
    04  05:49  NEW MOON 
    05  20     Mercury at Aphelion 
    05  22:58  Saturn 4.0°N of Spica
    06  04:18  Mercury 1.3°N of Moon
    06  16:23  Moon at Perigee: 363868 km
    07  03:52  Spica 1.9°N of Moon
    09  12     Neptune in Conjunction with Sun 
    10  00:46  Jupiter 2.9°N of Spica
    10  07:01  Antares 0.7°N of Moon
    10  21:35  FIRST QUARTER MOON 
    13  13     Mercury at Greatest Elong: 26.8°E
    15  17     Jupiter 1.2°S of Saturn
    16  22:55  Moon at Ascending Node 
    18  08:32  FULL MOON 
    21  09:08  Mercury 1.2°S of Spica
    22  13:20  Moon at Apogee: 405610 km
    22  19:00  Autumnal Equinox 
    23  17:47  Pleiades 1.1°S of Moon
    26  12:33  LAST QUARTER MOON 
    28  03:01  Pollux 3.1°N of Moon
    29  00:33  Venus 0.1°N of Regulus
    30  19:30  Regulus 0.3°S of Moon
    30  23:47  Venus 0.2°N of Moon: Occn.

Oct 01  09:42  Moon at Descending Node 
    01  10:33  Mercury 1.4°S of Spica
    03  15:02  NEW MOON 
    04  18:58  Moon at Perigee: 359240 km
    07  13:59  Antares 0.6°N of Moon
    09  04     Mercury at Inferior Conjunction 
    10  05:33  FIRST QUARTER MOON 
    11  04     Mars in Conjunction with Sun 
    14  03:34  Moon at Ascending Node 
    16  20     Uranus at Opposition 
    18  01:06  FULL MOON 
    19  20     Mercury at Perihelion 
    20  01:03  Moon at Apogee: 406359 km
    21  00:17  Pleiades 1.0°S of Moon
    22  14     Orionid Meteor Shower
    22  18     Saturn in Conjunction with Sun 
    22  20     Venus at Perihelion 
    24  17     Mercury at Greatest Elong: 18.3°W
    25  10:55  Pollux 3.3°N of Moon
    26  04:19  LAST QUARTER MOON 
    26  18     Jupiter in Conjunction with Sun 
    28  05:20  Regulus 0.1°S of Moon
    28  17:11  Moon at Descending Node 
    31  02:06  Venus 4.9°N of Moon

Nov 01  00:16  Spica 1.8°N of Moon
    01  19:38  Mercury 3.7°N of Spica
    02  00:14  NEW MOON 
    02  05:19  Moon at Perigee: 356834 km
    03  23:28  Antares 0.5°N of Moon
    06  15     S Taurid Meteor Shower
    08  17:15  FIRST QUARTER MOON 
    10  05:09  Moon at Ascending Node 
    12  07:56  Venus 3.5°N of Spica
    13  14     N Taurid Meteor Shower
    16  02:23  Moon at Apogee: 406471 km
    16  19:19  FULL MOON 
    17  06:19  Pleiades 0.9°S of Moon
    18  21     Leonid Meteor Shower
    19  09     Venus 0.6°S of Saturn
    21  17:10  Pollux 3.5°N of Moon
    24  13:11  Regulus 0.2°N of Moon
    24  18:13  LAST QUARTER MOON 
    24  19:59  Moon at Descending Node 
    25  09     Venus 0.5°N of Jupiter
    28  04     Mercury at Superior Conjunction 
    28  11:04  Spica 2.0°N of Moon
    30  17:37  Moon at Perigee: 357592 km

Dec 01  10:00  NEW MOON 
    07  06:24  Moon at Ascending Node 
    08  09:09  FIRST QUARTER MOON 
    10  12     Venus 1.0°N of Mars
    13  07:26  Moon at Apogee: 406012 km
    14  12:41  Pleiades 0.9°S of Moon
    15  10     Geminid Meteor Shower
    16  14:00  FULL MOON 
    18  22:52  Pollux 3.7°N of Moon
    21  16:51  Winter Solstice 
    21  19:07  Regulus 0.4°N of Moon
    21  20:25  Moon at Descending Node 
    23  18     Ursid Meteor Shower
    24  05:46  LAST QUARTER MOON 
    25  19:38  Spica 2.2°N of Moon
    25  23:43  Mars 4.4°N of Antares
    28  21:24  Antares 0.4°N of Moon
    29  01:56  Mars 4.9°N of Moon
    29  02:45  Moon at Perigee: 361469 km
    30  20:56  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

Argentina Time

The following table gives the date and time of the Moon's phases for the year. The times listed are for Argentina Time (Coordinated Universal Time − 3 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
Argentina Time
New Moon First Quarter Full Moon Last Quarter
--- Jan 03 10:03
Jan 10 09:55 Jan 18 09:34 Jan 25 23:49 Feb 01 18:16
Feb 09 01:55 Feb 17 06:22 Feb 24 11:51 n Mar 03 03:11
Mar 10 19:28 A Mar 18 23:58 Mar 25 22:05 Apr 01 13:35
Apr 09 13:16 Apr 17 13:42 Apr 24 06:43 May 01 02:01
May 09 05:54 May 16 23:42 May 23 14:25 May 30 16:35
Jun 07 20:31 Jun 15 06:41 Jun 21 22:11 Jun 29 08:52
Jul 07 09:06 Jul 14 11:43 Jul 21 07:12 Jul 29 02:09
Aug 05 20:02 Aug 12 16:10 Aug 19 18:29 n Aug 27 19:36
Sep 04 05:49 T Sep 10 21:35 Sep 18 08:32 Sep 26 12:33
Oct 03 15:03 Oct 10 05:33 Oct 18 01:06 Oct 26 04:19
Nov 02 00:14 Nov 08 17:15 Nov 16 19:19 Nov 24 18:13
Dec 01 10:00 Dec 08 09:09 Dec 16 14:00 Dec 24 05:46
Dec 30 20:56 ---

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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