2100 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.

2100 Sky Event Almanac
Hawaiian Standard Time
January - June July - December
Date     HST   Event
        (h:m)

Jan 01  11:12  Moon at Descending Node 
    02  22:57  Moon at Perigee: 370356 km
    03  03:03  LAST QUARTER MOON 
    03  04     Earth at Perihelion: 0.98334 AU
    03  20:14  Jupiter 4.4°N of Moon
    03  21:44  Spica 0.9°N of Moon
    04  11     Quadrantid Meteor Shower
    07  03:44  Antares 0.4°N of Moon
    10  02:55  NEW MOON 
    13  16:33  Venus 0.3°S of Moon: Occn.
    14  17:55  Moon at Ascending Node 
    17  00:48  Moon at Apogee: 404420 km
    18  02:34  FIRST QUARTER MOON 
    18  23:13  Mars 2.9°S of Moon
    20  17:18  Pleiades 0.8°S of Moon
    23  06     Mercury at Greatest Elong: 18.6°E
    24  19:21  Pollux 2.5°N of Moon
    25  16:49  FULL MOON 
    27  07:51  Regulus 1.3°S of Moon
    28  14:34  Moon at Descending Node 
    28  15     Mercury at Perihelion 
    28  19:53  Moon at Perigee: 366241 km
    29  21:40  Jupiter 3.4°N of Spica
    31  03:20  Spica 1.1°N of Moon
    31  04:44  Jupiter 4.9°N of Moon

Feb 01  11:16  LAST QUARTER MOON 
    03  09:39  Antares 0.6°N of Moon
    07  18     Mercury at Inferior Conjunction 
    08  18:55  NEW MOON 
    09  11     Jupiter 3.3°N of Saturn
    10  23:32  Moon at Ascending Node 
    12  23:00  Venus 1.6°S of Moon
    13  20:46  Moon at Apogee: 405204 km
    16  13:13  Mars 3.5°S of Moon
    16  23:22  FIRST QUARTER MOON 
    17  01:59  Pleiades 1.0°S of Moon
    21  05:41  Pollux 2.5°N of Moon
    23  17:59  Regulus 1.2°S of Moon
    24  04:51  FULL MOON 
    24  05:02  Pen. Lunar Eclipse; mag=0.965
    24  23:10  Moon at Descending Node 
    25  19:17  Moon at Perigee: 360805 km
    27  10:48  Spica 1.2°N of Moon

Mar 01  06:09  Mars 2.5°S of Pleiades
    01  20     Venus at Greatest Elong: 46.5°E
    02  15:12  Antares 0.7°N of Moon
    02  20:11  LAST QUARTER MOON 
    05  13     Mercury at Greatest Elong: 27.2°W
    06  02     Neptune at Opposition 
    08  01:09  Mercury 1.7°N of Moon
    10  06:26  Moon at Ascending Node 
    10  12:25  Annular Solar Eclipse; mag=0.934
    10  12:28  NEW MOON 
    11  07     Jupiter at Aphelion:  5.45256 AU
    11  20     Venus at Perihelion 
    13  11:09  Moon at Apogee: 406110 km
    13  15     Mercury at Aphelion 
    14  18:07  Venus 0.8°S of Moon: Occn.
    16  09:19  Pleiades 1.0°S of Moon
    17  04:21  Mars 3.8°S of Moon
    18  16:58  FIRST QUARTER MOON 
    20  03:04  Vernal Equinox 
    20  15:24  Pollux 2.5°N of Moon
    23  04:58  Regulus 1.2°S of Moon
    24  10:16  Moon at Descending Node 
    25  15:05  FULL MOON 
    26  04:59  Moon at Perigee: 357415 km
    26  16:54  Jupiter 4.9°N of Moon
    26  20:47  Spica 1.2°N of Moon
    29  22:33  Antares 0.6°N of Moon

Apr 01  06:35  LAST QUARTER MOON 
    01  07:32  Saturn 4.5°N of Spica
    06  12:09  Moon at Ascending Node 
    07  14     Jupiter at Opposition 
    09  06:16  NEW MOON 
    09  15:45  Moon at Apogee: 406566 km
    11  00     Uranus in Conjunction with Sun 
    12  12:33  Venus 1.0°N of Moon: Occn.
    12  15:28  Pleiades 0.9°S of Moon
    12  18     Saturn at Opposition 
    14  19:02  Mars 3.6°S of Moon
    15  10:18  Venus 1.8°N of Pleiades
    16  23:11  Pollux 2.6°N of Moon
    17  06:42  FIRST QUARTER MOON 
    18  07     Mercury at Superior Conjunction 
    19  14:47  Regulus 1.1°S of Moon
    20  19:32  Moon at Descending Node 
    22  22:33  Jupiter 4.6°N of Moon
    23  07:57  Spica 1.2°N of Moon
    23  08     Lyrid Meteor Shower
    23  16:14  Moon at Perigee: 357008 km
    23  23:43  FULL MOON 
    26  08:11  Antares 0.5°N of Moon
    26  14     Mercury at Perihelion 
    26  15:31  Venus 1.6°N of Pleiades
    30  19:01  LAST QUARTER MOON 

May 02  10     Mercury 3.6°S of Venus
    03  15:18  Moon at Ascending Node 
    03  15:20  Mercury 2.1°S of Pleiades
    05  21     Eta-Aquarid Meteor Shower
    06  19:13  Moon at Apogee: 406376 km
    08  22:54  NEW MOON 
    10  20:23  Mercury 2.6°S of Moon
    12  02     Venus at Inferior Conjunction 
    13  09:07  Mars 3.0°S of Moon
    14  05:11  Pollux 2.8°N of Moon
    16  06     Mercury at Greatest Elong: 21.9°E
    16  16:42  FIRST QUARTER MOON 
    16  22:20  Regulus 0.9°S of Moon
    18  00:10  Moon at Descending Node 
    20  04:23  Jupiter 4.5°N of Moon
    20  18:14  Spica 1.3°N of Moon
    22  01:04  Moon at Perigee: 359498 km
    23  07:25  FULL MOON 
    23  18:50  Antares 0.4°N of Moon
    30  09:35  LAST QUARTER MOON 
    30  16:54  Moon at Ascending Node 

Jun 03  07:09  Moon at Apogee: 405537 km
    06  03:40  Pleiades 0.8°S of Moon
    07  13:31  NEW MOON 
    09  19     Mercury at Inferior Conjunction 
    10  10:46  Pollux 3.0°N of Moon
    10  23:09  Mars 2.0°S of Moon
    13  04:08  Regulus 0.6°S of Moon
    14  01:13  Moon at Descending Node 
    14  23:41  FIRST QUARTER MOON 
    16  11:04  Jupiter 4.5°N of Moon
    17  02:21  Spica 1.5°N of Moon
    19  02:17  Moon at Perigee: 364024 km
    20  04:43  Antares 0.5°N of Moon
    20  19:32  Summer Solstice 
    21  15:11  FULL MOON 
    26  19:36  Moon at Ascending Node 
    29  01:52  LAST QUARTER MOON 
    30  23:51  Moon at Apogee: 404573 km

Date     HST   Event
        (h:m)

Jul 02  05     Venus at Aphelion 
    03  11:03  Pleiades 0.9°S of Moon
    03  20     Mercury at Greatest Elong: 21.7°W
    06  06     Earth at Aphelion: 1.01670 AU
    07  02:06  NEW MOON 
    09  13:44  Mars 0.7°S of Moon: Occn.
    10  09:51  Regulus 0.4°S of Moon
    11  02:41  Moon at Descending Node 
    12  09     Mars at Aphelion:  1.66621 AU
    13  19:37  Jupiter 4.8°N of Moon
    14  04:43  FIRST QUARTER MOON 
    14  08:24  Spica 1.7°N of Moon
    16  04:15  Moon at Perigee: 368737 km
    17  08:01  Venus 1.8°N of Aldebaran
    17  12:36  Antares 0.6°N of Moon
    21  00:12  FULL MOON 
    21  06     Venus at Greatest Elong: 45.7°W
    23  13     Mercury at Perihelion 
    24  01:04  Moon at Ascending Node 
    27  16:09  Mars 0.6°N of Regulus
    28  18:16  Moon at Apogee: 404176 km
    28  19:09  LAST QUARTER MOON 
    28  23     Delta-Aquarid Meteor Shower
    30  19:10  Pleiades 1.1°S of Moon
    31  20     Mercury at Superior Conjunction 

Aug 04  01:29  Pollux 3.1°N of Moon
    05  13:02  NEW MOON 
    06  17:01  Regulus 0.3°S of Moon
    07  05:15  Mars 1.0°N of Moon: Occn.
    07  07:49  Moon at Descending Node 
    10  06:07  Moon at Perigee: 368679 km
    10  13:56  Spica 1.9°N of Moon
    12  09:10  FIRST QUARTER MOON 
    13  15     Perseid Meteor Shower
    13  18:33  Antares 0.7°N of Moon
    19  08     Mercury 0.1°S of Mars
    19  11:29  FULL MOON 
    19  11:42  Pen. Lunar Eclipse; mag=0.872
    20  08:38  Moon at Ascending Node 
    25  13:00  Moon at Apogee: 404637 km
    27  03:20  Pleiades 1.2°S of Moon
    27  12:36  LAST QUARTER MOON 
    31  10:48  Pollux 3.0°N of Moon

Sep 03  16:41  Moon at Descending Node 
    03  22:46  Total Solar Eclipse; mag=1.040
    03  22:49  NEW MOON 
    05  13     Mercury at Aphelion 
    05  15:58  Saturn 4.0°N of Spica
    05  21:18  Mercury 1.3°N of Moon
    06  09:23  Moon at Perigee: 363868 km
    06  20:52  Spica 1.9°N of Moon
    09  05     Neptune in Conjunction with Sun 
    09  17:46  Jupiter 2.9°N of Spica
    10  00:01  Antares 0.7°N of Moon
    10  14:35  FIRST QUARTER MOON 
    13  06     Mercury at Greatest Elong: 26.8°E
    15  10     Jupiter 1.2°S of Saturn
    16  15:55  Moon at Ascending Node 
    18  01:32  FULL MOON 
    21  02:08  Mercury 1.2°S of Spica
    22  06:20  Moon at Apogee: 405610 km
    22  12:00  Autumnal Equinox 
    23  10:47  Pleiades 1.1°S of Moon
    26  05:33  LAST QUARTER MOON 
    27  20:01  Pollux 3.1°N of Moon
    28  17:33  Venus 0.1°N of Regulus
    30  12:30  Regulus 0.3°S of Moon
    30  16:47  Venus 0.2°N of Moon: Occn.

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

Nov 01  12:38  Mercury 3.7°N of Spica
    01  17:14  NEW MOON 
    01  22:19  Moon at Perigee: 356834 km
    03  16:28  Antares 0.5°N of Moon
    06  08     S Taurid Meteor Shower
    08  10:15  FIRST QUARTER MOON 
    09  22:09  Moon at Ascending Node 
    12  00:56  Venus 3.5°N of Spica
    13  07     N Taurid Meteor Shower
    15  19:23  Moon at Apogee: 406471 km
    16  12:19  FULL MOON 
    16  23:19  Pleiades 0.9°S of Moon
    18  14     Leonid Meteor Shower
    19  02     Venus 0.6°S of Saturn
    21  10:10  Pollux 3.5°N of Moon
    24  06:11  Regulus 0.2°N of Moon
    24  11:13  LAST QUARTER MOON 
    24  12:59  Moon at Descending Node 
    25  02     Venus 0.5°N of Jupiter
    27  21     Mercury at Superior Conjunction 
    28  04:04  Spica 2.0°N of Moon
    30  10:37  Moon at Perigee: 357592 km

Dec 01  03:00  NEW MOON 
    06  23:24  Moon at Ascending Node 
    08  02:09  FIRST QUARTER MOON 
    10  05     Venus 1.0°N of Mars
    13  00:26  Moon at Apogee: 406012 km
    14  05:41  Pleiades 0.9°S of Moon
    15  03     Geminid Meteor Shower
    16  07:00  FULL MOON 
    18  15:52  Pollux 3.7°N of Moon
    21  09:51  Winter Solstice 
    21  12:07  Regulus 0.4°N of Moon
    21  13:25  Moon at Descending Node 
    23  11     Ursid Meteor Shower
    23  22:46  LAST QUARTER MOON 
    25  12:38  Spica 2.2°N of Moon
    25  16:43  Mars 4.4°N of Antares
    28  14:24  Antares 0.4°N of Moon
    28  18:56  Mars 4.9°N of Moon
    28  19:45  Moon at Perigee: 361469 km
    30  13:56  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

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.

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

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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