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
|
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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 | |||||
- 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)
- Time Zones Abbreviations
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
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
Interactive Sky Chart (Sky and Telescope)
Sky Maps (sky-map.org)
Astronomical Almanac (Sky and Telescope)
Weather Forecast for Astronomy (Clear Outside)
GOES-East Images (NOAA-GOES)
Astronomy Tools (Astronomy Tools)