2099 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.

2099 Sky Event Almanac
Argentina Time
January - June July - December
Date     ART   Event
        (h:m)

Jan 03  15:16  Pleiades 0.3°N of Moon
    04  12     Quadrantid Meteor Shower
    05  03     Earth at Perihelion: 0.98331 AU
    06  22:50  FULL MOON 
    07  09:21  Pollux 1.9°N of Moon
    08  15:21  Moon at Perigee: 361107 km
    08  17     Mercury at Superior Conjunction 
    09  17:58  Regulus 3.0°S of Moon
    11  10:18  Jupiter 0.1°S of Moon: Occn.
    11  23     Venus 2.5°N of Mars
    12  12:34  Moon at Descending Node 
    12  23:20  Saturn 3.2°N of Moon
    13  13:55  Spica 0.8°S of Moon
    13  14:26  LAST QUARTER MOON 
    15  09:26  Mars 4.7°N of Antares
    17  01:55  Antares 0.2°S of Moon
    21  06:07  NEW MOON 
    24  09:47  Moon at Apogee: 406101 km
    26  18:57  Moon at Ascending Node 
    29  11:38  FIRST QUARTER MOON 
    31  00:56  Pleiades 0.0°N of Moon

Feb 03  20:31  Pollux 1.8°N of Moon
    05  09:48  FULL MOON 
    06  01:14  Moon at Perigee: 357384 km
    06  04:24  Regulus 2.9°S of Moon
    07  17:03  Jupiter 0.1°N of Moon: Occn.
    08  16:37  Moon at Descending Node 
    09  01     Mercury at Greatest Elong: 18.2°E
    09  06:54  Saturn 3.6°N of Moon
    09  21:16  Spica 0.6°S of Moon
    11  01     Mercury at Perihelion 
    12  02:08  LAST QUARTER MOON 
    13  07:33  Antares 0.0°N of Moon
    20  01:05  NEW MOON 
    20  14:45  Moon at Apogee: 406556 km
    22  22:03  Moon at Ascending Node 
    24  12     Mercury at Inferior Conjunction 
    27  08:34  Pleiades 0.2°S of Moon
    28  03:13  FIRST QUARTER MOON 

Mar 03  07:05  Pollux 1.7°N of Moon
    03  22     Neptune at Opposition 
    05  15:53  Regulus 2.9°S of Moon
    06  13:59  Moon at Perigee: 356797 km
    06  19:59  FULL MOON 
    06  23:06  Jupiter 0.1°S of Moon: Occn.
    08  01:55  Moon at Descending Node 
    08  10     Jupiter at Opposition 
    08  14:58  Saturn 3.7°N of Moon
    09  07:07  Spica 0.4°S of Moon
    12  14:38  Antares 0.2°N of Moon
    13  16:00  LAST QUARTER MOON 
    15  19:11  Mars 4.5°N of Moon
    18  17:48  Venus 2.9°N of Moon
    19  05:03  Mercury 2.7°N of Moon
    19  16:55  Moon at Apogee: 406404 km
    20  04:17  Vernal Equinox 
    21  19:46  NEW MOON 
    21  19:51  Annular Solar Eclipse; mag=0.932
    22  03:42  Moon at Ascending Node 
    23  10     Mercury at Greatest Elong: 27.8°W
    26  14:27  Pleiades 0.2°S of Moon
    27  00     Mercury at Aphelion 
    28  14     Mercury 3.1°N of Venus
    29  14:38  FIRST QUARTER MOON 
    30  15:17  Pollux 1.7°N of Moon
    31  04     Saturn at Opposition 

Apr 02  02:06  Regulus 2.9°S of Moon
    03  04:32  Jupiter 0.4°S of Moon: Occn.
    04  00:23  Moon at Perigee: 359339 km
    04  13:07  Moon at Descending Node 
    04  22:45  Saturn 3.5°N of Moon
    05  05:28  Partial Lunar Eclipse; mag=0.168
    05  05:37  FULL MOON 
    05  18:10  Spica 0.4°S of Moon
    07  00     Uranus in Conjunction with Sun 
    08  23:43  Antares 0.2°N of Moon
    09  02     Venus at Aphelion 
    12  07:47  LAST QUARTER MOON 
    13  17:49  Mars 3.2°N of Moon
    16  05:34  Moon at Apogee: 405586 km
    18  07:21  Venus 1.5°S of Moon
    18  10:18  Moon at Ascending Node 
    19  05:46  Mercury 3.3°S of Moon
    20  12:30  NEW MOON 
    22  20:07  Pleiades 0.2°S of Moon
    23  09     Lyrid Meteor Shower
    26  21:18  Pollux 1.8°N of Moon
    27  22:36  FIRST QUARTER MOON 
    29  09:48  Regulus 2.8°S of Moon
    30  09:57  Jupiter 0.6°S of Moon: Occn.

May 01  21:58  Moon at Descending Node 
    02  02:55  Moon at Perigee: 364037 km
    02  05:19  Saturn 3.3°N of Moon
    03  04:20  Spica 0.4°S of Moon
    04  10     Mercury at Superior Conjunction 
    04  14:58  FULL MOON 
    05  22     Eta-Aquarid Meteor Shower
    06  09:45  Antares 0.1°N of Moon
    10  00     Mercury at Perihelion 
    12  01:00  LAST QUARTER MOON 
    12  19:07  Mars 1.1°N of Moon: Occn.
    13  23:22  Moon at Apogee: 404556 km
    15  15:38  Moon at Ascending Node 
    20  02:16  NEW MOON 
    21  14:36  Mercury 2.7°S of Moon
    24  02:48  Pollux 1.9°N of Moon
    26  15:35  Regulus 2.6°S of Moon
    27  04:16  FIRST QUARTER MOON 
    27  16:45  Jupiter 0.5°S of Moon: Occn.
    29  02:09  Moon at Descending Node 
    29  04:58  Moon at Perigee: 368838 km
    29  10:47  Saturn 3.3°N of Moon
    30  12:20  Spica 0.3°S of Moon

Jun 02  19:03  Antares 0.0°N of Moon
    03  00:37  FULL MOON 
    03  19     Mercury at Greatest Elong: 23.4°E
    10  18:17  Moon at Apogee: 404057 km
    10  18:49  LAST QUARTER MOON 
    10  21:09  Mars 1.8°S of Moon
    11  18:47  Moon at Ascending Node 
    16  11:12  Pleiades 0.2°S of Moon
    18  13:10  NEW MOON 
    20  09:35  Pollux 2.1°N of Moon
    20  20:41  Summer Solstice 
    22  21:19  Regulus 2.3°S of Moon
    23  06:41  Moon at Perigee: 368734 km
    24  02:31  Jupiter 0.1°S of Moon: Occn.
    25  02:59  Moon at Descending Node 
    25  09:00  FIRST QUARTER MOON 
    25  16:40  Saturn 3.5°N of Moon
    26  18:22  Spica 0.1°S of Moon
    30  02:37  Antares 0.1°N of Moon
    30  05     Mercury at Inferior Conjunction 

Date     ART   Event
        (h:m)

Jul 02  11:21  FULL MOON 
    07  05     Earth at Aphelion: 1.01666 AU
    08  12:42  Moon at Apogee: 404420 km
    08  20:53  Moon at Ascending Node 
    10  12:13  LAST QUARTER MOON 
    13  20:19  Pleiades 0.3°S of Moon
    17  22:01  NEW MOON 
    20  04:44  Regulus 2.2°S of Moon
    20  09:45  Moon at Perigee: 364045 km
    21  16:06  Jupiter 0.5°N of Moon: Occn.
    21  23     Mercury at Greatest Elong: 20.3°W
    22  04:43  Moon at Descending Node 
    22  18     Venus at Superior Conjunction 
    23  00:50  Saturn 3.7°N of Moon
    23  23:58  Spica 0.2°N of Moon
    24  14:09  FIRST QUARTER MOON 
    27  08:33  Antares 0.3°N of Moon
    29  00     Delta-Aquarid Meteor Shower
    30  11     Venus at Perihelion 
    31  23:59  FULL MOON 

Aug 03  07     Mars at Perihelion:  1.38105 AU
    04  23:59  Moon at Ascending Node 
    05  05:15  Moon at Apogee: 405336 km
    05  23     Mercury at Perihelion 
    09  04:14  LAST QUARTER MOON 
    10  05:07  Pleiades 0.5°S of Moon
    13  16     Perseid Meteor Shower
    14  04:27  Pollux 2.1°N of Moon
    16  05:54  NEW MOON 
    17  03     Mercury at Superior Conjunction 
    17  11:24  Moon at Perigee: 359644 km
    18  09:24  Jupiter 1.1°N of Moon: Occn.
    18  10:41  Moon at Descending Node 
    19  12:25  Saturn 4.0°N of Moon
    20  06:59  Spica 0.4°N of Moon
    22  21:01  FIRST QUARTER MOON 
    23  14:06  Antares 0.4°N of Moon
    30  14:56  FULL MOON 

Sep 01  05:07  Moon at Ascending Node 
    01  16:45  Moon at Apogee: 406116 km
    05  00     Mercury 0.7°S of Jupiter
    06  12:36  Pleiades 0.7°S of Moon
    07  00     Neptune in Conjunction with Sun 
    07  18:18  LAST QUARTER MOON 
    10  14:24  Pollux 2.0°N of Moon
    13  01:05  Regulus 2.1°S of Moon
    14  11     Mercury 3.0°S of Saturn
    14  13:50  NEW MOON 
    14  13:55  Total Solar Eclipse; mag=1.068
    14  20:26  Moon at Perigee: 357286 km
    14  20:43  Moon at Descending Node 
    15  16:50  Venus 2.5°N of Moon
    16  03:12  Saturn 4.3°N of Moon
    16  04:07  Mercury 0.9°N of Moon: Occn.
    16  16:17  Spica 0.4°N of Moon
    18  23     Mercury at Aphelion 
    19  20:54  Antares 0.5°N of Moon
    20  20     Venus 1.3°S of Saturn
    21  06:48  FIRST QUARTER MOON 
    22  00:06  Mercury 0.2°N of Spica
    22  13:10  Autumnal Equinox 
    26  06     Jupiter in Conjunction with Sun 
    28  07:18  Venus 2.6°N of Spica
    28  11:27  Moon at Ascending Node 
    28  19:34  Moon at Apogee: 406272 km
    29  07:33  Pen. Lunar Eclipse; mag=1.034
    29  07:45  FULL MOON 

Oct 01  00     Mercury at Greatest Elong: 25.9°E
    03  18:42  Pleiades 0.6°S of Moon
    07  06:21  LAST QUARTER MOON 
    07  22:42  Pollux 2.0°N of Moon
    10  03     Saturn in Conjunction with Sun 
    10  11:19  Regulus 2.1°S of Moon
    12  07:41  Moon at Descending Node 
    12  09     Mercury 3.6°S of Venus
    12  13     Uranus at Opposition 
    13  07:26  Moon at Perigee: 357782 km
    13  22:32  NEW MOON 
    15  06:33  Mercury 0.5°N of Moon: Occn.
    15  15:24  Venus 4.2°N of Moon
    17  05:52  Antares 0.4°N of Moon
    18  05     Mars at Opposition 
    20  20:27  FIRST QUARTER MOON 
    22  08     Orionid Meteor Shower
    25  07     Mercury at Inferior Conjunction 
    25  17:00  Moon at Ascending Node 
    26  00:06  Moon at Apogee: 405825 km
    29  01:20  FULL MOON 
    31  00:23  Pleiades 0.6°S of Moon

Nov 01  23     Mercury at Perihelion 
    04  04:57  Pollux 2.2°N of Moon
    04  11:59  Venus 3.6°N of Antares
    05  16:42  LAST QUARTER MOON 
    06  09     S Taurid Meteor Shower
    06  19:26  Regulus 1.9°S of Moon
    08  15:30  Moon at Descending Node 
    09  22:17  Jupiter 3.0°N of Moon
    10  04     Mercury at Greatest Elong: 19.0°W
    10  11:45  Saturn 5.0°N of Moon
    10  13:55  Spica 0.4°N of Moon
    10  16:35  Moon at Perigee: 361208 km
    12  08:29  NEW MOON 
    13  08     N Taurid Meteor Shower
    13  16:23  Antares 0.3°N of Moon
    14  13:49  Venus 3.8°N of Moon
    18  14     Leonid Meteor Shower
    19  14:17  FIRST QUARTER MOON 
    19  19     Venus at Aphelion 
    21  20:17  Moon at Ascending Node 
    22  14:25  Moon at Apogee: 404988 km
    24  01:20  Mars 2.7°S of Moon
    27  07:02  Pleiades 0.5°S of Moon
    27  18:22  FULL MOON 

Dec 01  10:26  Pollux 2.4°N of Moon
    04  01:24  Regulus 1.7°S of Moon
    05  01:45  LAST QUARTER MOON 
    05  18:02  Moon at Descending Node 
    07  14:55  Jupiter 3.7°N of Moon
    07  22:33  Spica 0.6°N of Moon
    08  12:15  Saturn 4.2°N of Spica
    08  14:50  Moon at Perigee: 366610 km
    11  20:09  NEW MOON 
    14  16:02  Venus 2.1°N of Moon
    15  04     Geminid Meteor Shower
    18  22:01  Moon at Ascending Node 
    19  03     Mercury at Superior Conjunction 
    19  11:22  FIRST QUARTER MOON 
    20  10:16  Moon at Apogee: 404339 km
    21  11:04  Winter Solstice 
    21  21:26  Mars 2.3°S of Moon
    23  12     Ursid Meteor Shower
    24  15:13  Pleiades 0.6°S of Moon
    27  09:58  FULL MOON 
    28  17:16  Pollux 2.5°N of Moon
    31  07:07  Regulus 1.4°S of 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

2099 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.

2099 Phases of the Moon
Argentina Time
New Moon First Quarter Full Moon Last Quarter
-- Jan 06 22:50 Jan 13 14:26
Jan 21 06:07 Jan 29 11:38 Feb 05 09:48 Feb 12 02:08
Feb 20 01:05 Feb 28 03:13 Mar 06 19:59 Mar 13 16:00
Mar 21 19:46 A Mar 29 14:38 Apr 05 05:37 p Apr 12 07:47
Apr 20 12:30 Apr 27 22:36 May 04 14:58 May 12 01:00
May 20 02:16 May 27 04:16 Jun 03 00:37 Jun 10 18:49
Jun 18 13:10 Jun 25 09:00 Jul 02 11:21 Jul 10 12:13
Jul 17 22:01 Jul 24 14:09 Jul 31 23:59 Aug 09 04:14
Aug 16 05:54 Aug 22 21:01 Aug 30 14:56 Sep 07 18:18
Sep 14 13:50 T Sep 21 06:48 Sep 29 07:45 n Oct 07 06:21
Oct 13 22:32 Oct 20 20:27 Oct 29 01:20 Nov 05 16:42
Nov 12 08:29 Nov 19 14:17 Nov 27 18:22 Dec 05 01:46
Dec 11 20:09 Dec 19 11:22 Dec 27 09:58 -

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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