2100 Sky Event Almanac
Eastern Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Eastern Standard Time (Coordinated Universal Time − 5 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 | ||||||||
| Eastern Standard Time | ||||||||
| January - June | July - December | |||||||
Date EST Event
(h:m)
Jan 01 16:12 Moon at Descending Node
03 03:57 Moon at Perigee: 370356 km
03 08:03 LAST QUARTER MOON
03 09 Earth at Perihelion: 0.98334 AU
04 01:14 Jupiter 4.4°N of Moon
04 02:44 Spica 0.9°N of Moon
04 16 Quadrantid Meteor Shower
07 08:44 Antares 0.4°N of Moon
10 07:55 NEW MOON
13 21:33 Venus 0.3°S of Moon: Occn.
14 22:55 Moon at Ascending Node
17 05:48 Moon at Apogee: 404420 km
18 07:34 FIRST QUARTER MOON
19 04:13 Mars 2.9°S of Moon
20 22:18 Pleiades 0.8°S of Moon
23 11 Mercury at Greatest Elong: 18.6°E
25 00:21 Pollux 2.5°N of Moon
25 21:49 FULL MOON
27 12:51 Regulus 1.3°S of Moon
28 19:34 Moon at Descending Node
28 20 Mercury at Perihelion
29 00:53 Moon at Perigee: 366241 km
30 02:40 Jupiter 3.4°N of Spica
31 08:20 Spica 1.1°N of Moon
31 09:44 Jupiter 4.9°N of Moon
Feb 01 16:16 LAST QUARTER MOON
03 14:39 Antares 0.6°N of Moon
07 23 Mercury at Inferior Conjunction
08 23:55 NEW MOON
09 16 Jupiter 3.3°N of Saturn
11 04:32 Moon at Ascending Node
13 04:00 Venus 1.6°S of Moon
14 01:46 Moon at Apogee: 405204 km
16 18:13 Mars 3.5°S of Moon
17 04:22 FIRST QUARTER MOON
17 06:59 Pleiades 1.0°S of Moon
21 10:41 Pollux 2.5°N of Moon
23 22:59 Regulus 1.2°S of Moon
24 09:51 FULL MOON
24 10:02 Pen. Lunar Eclipse; mag=0.965
25 04:10 Moon at Descending Node
26 00:17 Moon at Perigee: 360805 km
27 15:48 Spica 1.2°N of Moon
Mar 01 11:09 Mars 2.5°S of Pleiades
02 01 Venus at Greatest Elong: 46.5°E
02 20:12 Antares 0.7°N of Moon
03 01:11 LAST QUARTER MOON
05 18 Mercury at Greatest Elong: 27.2°W
06 07 Neptune at Opposition
08 06:09 Mercury 1.7°N of Moon
10 11:26 Moon at Ascending Node
10 17:25 Annular Solar Eclipse; mag=0.934
10 17:28 NEW MOON
11 12 Jupiter at Aphelion: 5.45256 AU
12 01 Venus at Perihelion
13 16:09 Moon at Apogee: 406110 km
13 20 Mercury at Aphelion
14 23:07 Venus 0.8°S of Moon: Occn.
16 14:19 Pleiades 1.0°S of Moon
17 09:21 Mars 3.8°S of Moon
18 21:58 FIRST QUARTER MOON
20 08:04 Vernal Equinox
20 20:24 Pollux 2.5°N of Moon
23 09:58 Regulus 1.2°S of Moon
24 15:16 Moon at Descending Node
25 20:05 FULL MOON
26 09:59 Moon at Perigee: 357415 km
26 21:54 Jupiter 4.9°N of Moon
27 01:47 Spica 1.2°N of Moon
30 03:33 Antares 0.6°N of Moon
Apr 01 11:35 LAST QUARTER MOON
01 12:32 Saturn 4.5°N of Spica
06 17:09 Moon at Ascending Node
07 19 Jupiter at Opposition
09 11:16 NEW MOON
09 20:45 Moon at Apogee: 406566 km
11 05 Uranus in Conjunction with Sun
12 17:33 Venus 1.0°N of Moon: Occn.
12 20:28 Pleiades 0.9°S of Moon
12 23 Saturn at Opposition
15 00:02 Mars 3.6°S of Moon
15 15:18 Venus 1.8°N of Pleiades
17 04:11 Pollux 2.6°N of Moon
17 11:42 FIRST QUARTER MOON
18 12 Mercury at Superior Conjunction
19 19:47 Regulus 1.1°S of Moon
21 00:32 Moon at Descending Node
23 03:33 Jupiter 4.6°N of Moon
23 12:57 Spica 1.2°N of Moon
23 13 Lyrid Meteor Shower
23 21:14 Moon at Perigee: 357008 km
24 04:43 FULL MOON
26 13:11 Antares 0.5°N of Moon
26 19 Mercury at Perihelion
26 20:31 Venus 1.6°N of Pleiades
May 01 00:01 LAST QUARTER MOON
02 15 Mercury 3.6°S of Venus
03 20:18 Moon at Ascending Node
03 20:20 Mercury 2.1°S of Pleiades
06 02 Eta-Aquarid Meteor Shower
07 00:13 Moon at Apogee: 406376 km
09 03:54 NEW MOON
11 01:23 Mercury 2.6°S of Moon
12 07 Venus at Inferior Conjunction
13 14:07 Mars 3.0°S of Moon
14 10:11 Pollux 2.8°N of Moon
16 11 Mercury at Greatest Elong: 21.9°E
16 21:42 FIRST QUARTER MOON
17 03:20 Regulus 0.9°S of Moon
18 05:10 Moon at Descending Node
20 09:23 Jupiter 4.5°N of Moon
20 23:14 Spica 1.3°N of Moon
22 06:04 Moon at Perigee: 359498 km
23 12:25 FULL MOON
23 23:50 Antares 0.4°N of Moon
30 14:35 LAST QUARTER MOON
30 21:54 Moon at Ascending Node
Jun 03 12:09 Moon at Apogee: 405537 km
06 08:40 Pleiades 0.8°S of Moon
07 18:31 NEW MOON
10 00 Mercury at Inferior Conjunction
10 15:46 Pollux 3.0°N of Moon
11 04:09 Mars 2.0°S of Moon
13 09:08 Regulus 0.6°S of Moon
14 06:13 Moon at Descending Node
15 04:41 FIRST QUARTER MOON
16 16:04 Jupiter 4.5°N of Moon
17 07:21 Spica 1.5°N of Moon
19 07:17 Moon at Perigee: 364024 km
20 09:43 Antares 0.5°N of Moon
21 00:32 Summer Solstice
21 20:11 FULL MOON
27 00:36 Moon at Ascending Node
29 06:52 LAST QUARTER MOON
|
Date EST Event
(h:m)
Jul 01 04:51 Moon at Apogee: 404573 km
02 10 Venus at Aphelion
03 16:03 Pleiades 0.9°S of Moon
04 01 Mercury at Greatest Elong: 21.7°W
06 11 Earth at Aphelion: 1.01670 AU
07 07:06 NEW MOON
09 18:44 Mars 0.7°S of Moon: Occn.
10 14:51 Regulus 0.4°S of Moon
11 07:41 Moon at Descending Node
12 14 Mars at Aphelion: 1.66621 AU
14 00:37 Jupiter 4.8°N of Moon
14 09:43 FIRST QUARTER MOON
14 13:24 Spica 1.7°N of Moon
16 09:15 Moon at Perigee: 368737 km
17 13:01 Venus 1.8°N of Aldebaran
17 17:36 Antares 0.6°N of Moon
21 05:12 FULL MOON
21 11 Venus at Greatest Elong: 45.7°W
23 18 Mercury at Perihelion
24 06:04 Moon at Ascending Node
27 21:09 Mars 0.6°N of Regulus
28 23:16 Moon at Apogee: 404176 km
29 00:09 LAST QUARTER MOON
29 04 Delta-Aquarid Meteor Shower
31 00:10 Pleiades 1.1°S of Moon
Aug 01 01 Mercury at Superior Conjunction
04 06:29 Pollux 3.1°N of Moon
05 18:02 NEW MOON
06 22:01 Regulus 0.3°S of Moon
07 10:15 Mars 1.0°N of Moon: Occn.
07 12:49 Moon at Descending Node
10 11:07 Moon at Perigee: 368679 km
10 18:56 Spica 1.9°N of Moon
12 14:10 FIRST QUARTER MOON
13 20 Perseid Meteor Shower
13 23:33 Antares 0.7°N of Moon
19 13 Mercury 0.1°S of Mars
19 16:29 FULL MOON
19 16:42 Pen. Lunar Eclipse; mag=0.872
20 13:38 Moon at Ascending Node
25 18:00 Moon at Apogee: 404637 km
27 08:20 Pleiades 1.2°S of Moon
27 17:36 LAST QUARTER MOON
31 15:48 Pollux 3.0°N of Moon
Sep 03 21:41 Moon at Descending Node
04 03:46 Total Solar Eclipse; mag=1.040
04 03:49 NEW MOON
05 18 Mercury at Aphelion
05 20:58 Saturn 4.0°N of Spica
06 02:18 Mercury 1.3°N of Moon
06 14:23 Moon at Perigee: 363868 km
07 01:52 Spica 1.9°N of Moon
09 10 Neptune in Conjunction with Sun
09 22:46 Jupiter 2.9°N of Spica
10 05:01 Antares 0.7°N of Moon
10 19:35 FIRST QUARTER MOON
13 11 Mercury at Greatest Elong: 26.8°E
15 15 Jupiter 1.2°S of Saturn
16 20:55 Moon at Ascending Node
18 06:32 FULL MOON
21 07:08 Mercury 1.2°S of Spica
22 11:20 Moon at Apogee: 405610 km
22 17:00 Autumnal Equinox
23 15:47 Pleiades 1.1°S of Moon
26 10:33 LAST QUARTER MOON
28 01:01 Pollux 3.1°N of Moon
28 22:33 Venus 0.1°N of Regulus
30 17:30 Regulus 0.3°S of Moon
30 21:47 Venus 0.2°N of Moon: Occn.
Oct 01 07:42 Moon at Descending Node
01 08:33 Mercury 1.4°S of Spica
03 13:02 NEW MOON
04 16:58 Moon at Perigee: 359240 km
07 11:59 Antares 0.6°N of Moon
09 02 Mercury at Inferior Conjunction
10 03:33 FIRST QUARTER MOON
11 02 Mars in Conjunction with Sun
14 01:34 Moon at Ascending Node
16 18 Uranus at Opposition
17 23:06 FULL MOON
19 18 Mercury at Perihelion
19 23:03 Moon at Apogee: 406359 km
20 22:17 Pleiades 1.0°S of Moon
22 12 Orionid Meteor Shower
22 16 Saturn in Conjunction with Sun
22 18 Venus at Perihelion
24 15 Mercury at Greatest Elong: 18.3°W
25 08:55 Pollux 3.3°N of Moon
26 02:19 LAST QUARTER MOON
26 16 Jupiter in Conjunction with Sun
28 03:20 Regulus 0.1°S of Moon
28 15:11 Moon at Descending Node
31 00:06 Venus 4.9°N of Moon
31 22:16 Spica 1.8°N of Moon
Nov 01 17:38 Mercury 3.7°N of Spica
01 22:14 NEW MOON
02 03:19 Moon at Perigee: 356834 km
03 21:28 Antares 0.5°N of Moon
06 13 S Taurid Meteor Shower
08 15:15 FIRST QUARTER MOON
10 03:09 Moon at Ascending Node
12 05:56 Venus 3.5°N of Spica
13 12 N Taurid Meteor Shower
16 00:23 Moon at Apogee: 406471 km
16 17:19 FULL MOON
17 04:19 Pleiades 0.9°S of Moon
18 19 Leonid Meteor Shower
19 07 Venus 0.6°S of Saturn
21 15:10 Pollux 3.5°N of Moon
24 11:11 Regulus 0.2°N of Moon
24 16:13 LAST QUARTER MOON
24 17:59 Moon at Descending Node
25 07 Venus 0.5°N of Jupiter
28 02 Mercury at Superior Conjunction
28 09:04 Spica 2.0°N of Moon
30 15:37 Moon at Perigee: 357592 km
Dec 01 08:00 NEW MOON
07 04:24 Moon at Ascending Node
08 07:09 FIRST QUARTER MOON
10 10 Venus 1.0°N of Mars
13 05:26 Moon at Apogee: 406012 km
14 10:41 Pleiades 0.9°S of Moon
15 08 Geminid Meteor Shower
16 12:00 FULL MOON
18 20:52 Pollux 3.7°N of Moon
21 14:51 Winter Solstice
21 17:07 Regulus 0.4°N of Moon
21 18:25 Moon at Descending Node
23 16 Ursid Meteor Shower
24 03:46 LAST QUARTER MOON
25 17:38 Spica 2.2°N of Moon
25 21:43 Mars 4.4°N of Antares
28 19:24 Antares 0.4°N of Moon
28 23:56 Mars 4.9°N of Moon
29 00:45 Moon at Perigee: 361469 km
30 18:56 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
Eastern Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Eastern Standard Time (Coordinated Universal Time − 5 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 | |||
| Eastern Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | - | Jan 03 08:03 |
| Jan 10 07:55 | Jan 18 07:34 | Jan 25 21:49 | Feb 01 16:16 |
| Feb 08 23:55 | Feb 17 04:22 | Feb 24 09:51 n | Mar 03 01:11 |
| Mar 10 17:28 A | Mar 18 21:58 | Mar 25 20:05 | Apr 01 11:35 |
| Apr 09 11:16 | Apr 17 11:42 | Apr 24 04:43 | May 01 00:01 |
| May 09 03:54 | May 16 21:42 | May 23 12:25 | May 30 14:35 |
| Jun 07 18:31 | Jun 15 04:41 | Jun 21 20:11 | Jun 29 06:52 |
| Jul 07 07:06 | Jul 14 09:43 | Jul 21 05:12 | Jul 29 00:09 |
| Aug 05 18:02 | Aug 12 14:10 | Aug 19 16:29 n | Aug 27 17:36 |
| Sep 04 03:49 T | Sep 10 19:35 | Sep 18 06:32 | Sep 26 10:33 |
| Oct 03 13:03 | Oct 10 03:33 | Oct 17 23:06 | Oct 26 02:19 |
| Nov 01 22:14 | Nov 08 15:15 | Nov 16 17:19 | Nov 24 16:13 |
| Dec 01 08:00 | Dec 08 07:09 | Dec 16 12:00 | Dec 24 03:46 |
| Dec 30 18:56 | - | - | - |
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)