2100 Sky Event Almanac
Mountain Standard Time
The following table gives the date and time of the important astronomical events for the year . The times listed are for Mountain Standard Time (Coordinated Universal Time − 7 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 | ||||||||
| Mountain Standard Time | ||||||||
| January - June | July - December | |||||||
Date MST Event
(h:m)
Jan 01 14:12 Moon at Descending Node
03 01:57 Moon at Perigee: 370356 km
03 06:03 LAST QUARTER MOON
03 07 Earth at Perihelion: 0.98334 AU
03 23:14 Jupiter 4.4°N of Moon
04 00:44 Spica 0.9°N of Moon
04 14 Quadrantid Meteor Shower
07 06:44 Antares 0.4°N of Moon
10 05:55 NEW MOON
13 19:33 Venus 0.3°S of Moon: Occn.
14 20:55 Moon at Ascending Node
17 03:48 Moon at Apogee: 404420 km
18 05:34 FIRST QUARTER MOON
19 02:13 Mars 2.9°S of Moon
20 20:18 Pleiades 0.8°S of Moon
23 09 Mercury at Greatest Elong: 18.6°E
24 22:21 Pollux 2.5°N of Moon
25 19:49 FULL MOON
27 10:51 Regulus 1.3°S of Moon
28 17:34 Moon at Descending Node
28 18 Mercury at Perihelion
28 22:53 Moon at Perigee: 366241 km
30 00:40 Jupiter 3.4°N of Spica
31 06:20 Spica 1.1°N of Moon
31 07:44 Jupiter 4.9°N of Moon
Feb 01 14:16 LAST QUARTER MOON
03 12:39 Antares 0.6°N of Moon
07 21 Mercury at Inferior Conjunction
08 21:55 NEW MOON
09 14 Jupiter 3.3°N of Saturn
11 02:32 Moon at Ascending Node
13 02:00 Venus 1.6°S of Moon
13 23:46 Moon at Apogee: 405204 km
16 16:13 Mars 3.5°S of Moon
17 02:22 FIRST QUARTER MOON
17 04:59 Pleiades 1.0°S of Moon
21 08:41 Pollux 2.5°N of Moon
23 20:59 Regulus 1.2°S of Moon
24 07:51 FULL MOON
24 08:02 Pen. Lunar Eclipse; mag=0.965
25 02:10 Moon at Descending Node
25 22:17 Moon at Perigee: 360805 km
27 13:48 Spica 1.2°N of Moon
Mar 01 09:09 Mars 2.5°S of Pleiades
01 23 Venus at Greatest Elong: 46.5°E
02 18:12 Antares 0.7°N of Moon
02 23:11 LAST QUARTER MOON
05 16 Mercury at Greatest Elong: 27.2°W
06 05 Neptune at Opposition
08 04:09 Mercury 1.7°N of Moon
10 09:26 Moon at Ascending Node
10 15:25 Annular Solar Eclipse; mag=0.934
10 15:28 NEW MOON
11 10 Jupiter at Aphelion: 5.45256 AU
11 23 Venus at Perihelion
13 14:09 Moon at Apogee: 406110 km
13 18 Mercury at Aphelion
14 21:07 Venus 0.8°S of Moon: Occn.
16 12:19 Pleiades 1.0°S of Moon
17 07:21 Mars 3.8°S of Moon
18 19:58 FIRST QUARTER MOON
20 06:04 Vernal Equinox
20 18:24 Pollux 2.5°N of Moon
23 07:58 Regulus 1.2°S of Moon
24 13:16 Moon at Descending Node
25 18:05 FULL MOON
26 07:59 Moon at Perigee: 357415 km
26 19:54 Jupiter 4.9°N of Moon
26 23:47 Spica 1.2°N of Moon
30 01:33 Antares 0.6°N of Moon
Apr 01 09:35 LAST QUARTER MOON
01 10:32 Saturn 4.5°N of Spica
06 15:09 Moon at Ascending Node
07 17 Jupiter at Opposition
09 09:16 NEW MOON
09 18:45 Moon at Apogee: 406566 km
11 03 Uranus in Conjunction with Sun
12 15:33 Venus 1.0°N of Moon: Occn.
12 18:28 Pleiades 0.9°S of Moon
12 21 Saturn at Opposition
14 22:02 Mars 3.6°S of Moon
15 13:18 Venus 1.8°N of Pleiades
17 02:11 Pollux 2.6°N of Moon
17 09:42 FIRST QUARTER MOON
18 10 Mercury at Superior Conjunction
19 17:47 Regulus 1.1°S of Moon
20 22:32 Moon at Descending Node
23 01:33 Jupiter 4.6°N of Moon
23 10:57 Spica 1.2°N of Moon
23 11 Lyrid Meteor Shower
23 19:14 Moon at Perigee: 357008 km
24 02:43 FULL MOON
26 11:11 Antares 0.5°N of Moon
26 17 Mercury at Perihelion
26 18:31 Venus 1.6°N of Pleiades
30 22:01 LAST QUARTER MOON
May 02 13 Mercury 3.6°S of Venus
03 18:18 Moon at Ascending Node
03 18:20 Mercury 2.1°S of Pleiades
06 00 Eta-Aquarid Meteor Shower
06 22:13 Moon at Apogee: 406376 km
09 01:54 NEW MOON
10 23:23 Mercury 2.6°S of Moon
12 05 Venus at Inferior Conjunction
13 12:07 Mars 3.0°S of Moon
14 08:11 Pollux 2.8°N of Moon
16 09 Mercury at Greatest Elong: 21.9°E
16 19:42 FIRST QUARTER MOON
17 01:20 Regulus 0.9°S of Moon
18 03:10 Moon at Descending Node
20 07:23 Jupiter 4.5°N of Moon
20 21:14 Spica 1.3°N of Moon
22 04:04 Moon at Perigee: 359498 km
23 10:25 FULL MOON
23 21:50 Antares 0.4°N of Moon
30 12:35 LAST QUARTER MOON
30 19:54 Moon at Ascending Node
Jun 03 10:09 Moon at Apogee: 405537 km
06 06:40 Pleiades 0.8°S of Moon
07 16:31 NEW MOON
09 22 Mercury at Inferior Conjunction
10 13:46 Pollux 3.0°N of Moon
11 02:09 Mars 2.0°S of Moon
13 07:08 Regulus 0.6°S of Moon
14 04:13 Moon at Descending Node
15 02:41 FIRST QUARTER MOON
16 14:04 Jupiter 4.5°N of Moon
17 05:21 Spica 1.5°N of Moon
19 05:17 Moon at Perigee: 364024 km
20 07:43 Antares 0.5°N of Moon
20 22:32 Summer Solstice
21 18:11 FULL MOON
26 22:36 Moon at Ascending Node
29 04:52 LAST QUARTER MOON
|
Date MST Event
(h:m)
Jul 01 02:51 Moon at Apogee: 404573 km
02 08 Venus at Aphelion
03 14:03 Pleiades 0.9°S of Moon
03 23 Mercury at Greatest Elong: 21.7°W
06 09 Earth at Aphelion: 1.01670 AU
07 05:06 NEW MOON
09 16:44 Mars 0.7°S of Moon: Occn.
10 12:51 Regulus 0.4°S of Moon
11 05:41 Moon at Descending Node
12 12 Mars at Aphelion: 1.66621 AU
13 22:37 Jupiter 4.8°N of Moon
14 07:43 FIRST QUARTER MOON
14 11:24 Spica 1.7°N of Moon
16 07:15 Moon at Perigee: 368737 km
17 11:01 Venus 1.8°N of Aldebaran
17 15:36 Antares 0.6°N of Moon
21 03:12 FULL MOON
21 09 Venus at Greatest Elong: 45.7°W
23 16 Mercury at Perihelion
24 04:04 Moon at Ascending Node
27 19:09 Mars 0.6°N of Regulus
28 21:16 Moon at Apogee: 404176 km
28 22:09 LAST QUARTER MOON
29 02 Delta-Aquarid Meteor Shower
30 22:10 Pleiades 1.1°S of Moon
31 23 Mercury at Superior Conjunction
Aug 04 04:29 Pollux 3.1°N of Moon
05 16:02 NEW MOON
06 20:01 Regulus 0.3°S of Moon
07 08:15 Mars 1.0°N of Moon: Occn.
07 10:49 Moon at Descending Node
10 09:07 Moon at Perigee: 368679 km
10 16:56 Spica 1.9°N of Moon
12 12:10 FIRST QUARTER MOON
13 18 Perseid Meteor Shower
13 21:33 Antares 0.7°N of Moon
19 11 Mercury 0.1°S of Mars
19 14:29 FULL MOON
19 14:42 Pen. Lunar Eclipse; mag=0.872
20 11:38 Moon at Ascending Node
25 16:00 Moon at Apogee: 404637 km
27 06:20 Pleiades 1.2°S of Moon
27 15:36 LAST QUARTER MOON
31 13:48 Pollux 3.0°N of Moon
Sep 03 19:41 Moon at Descending Node
04 01:46 Total Solar Eclipse; mag=1.040
04 01:49 NEW MOON
05 16 Mercury at Aphelion
05 18:58 Saturn 4.0°N of Spica
06 00:18 Mercury 1.3°N of Moon
06 12:23 Moon at Perigee: 363868 km
06 23:52 Spica 1.9°N of Moon
09 08 Neptune in Conjunction with Sun
09 20:46 Jupiter 2.9°N of Spica
10 03:01 Antares 0.7°N of Moon
10 17:35 FIRST QUARTER MOON
13 09 Mercury at Greatest Elong: 26.8°E
15 13 Jupiter 1.2°S of Saturn
16 18:55 Moon at Ascending Node
18 04:32 FULL MOON
21 05:08 Mercury 1.2°S of Spica
22 09:20 Moon at Apogee: 405610 km
22 15:00 Autumnal Equinox
23 13:47 Pleiades 1.1°S of Moon
26 08:33 LAST QUARTER MOON
27 23:01 Pollux 3.1°N of Moon
28 20:33 Venus 0.1°N of Regulus
30 15:30 Regulus 0.3°S of Moon
30 19:47 Venus 0.2°N of Moon: Occn.
Oct 01 05:42 Moon at Descending Node
01 06:33 Mercury 1.4°S of Spica
03 11:02 NEW MOON
04 14:58 Moon at Perigee: 359240 km
07 09:59 Antares 0.6°N of Moon
09 00 Mercury at Inferior Conjunction
10 01:33 FIRST QUARTER MOON
11 00 Mars in Conjunction with Sun
13 23:34 Moon at Ascending Node
16 16 Uranus at Opposition
17 21:06 FULL MOON
19 16 Mercury at Perihelion
19 21:03 Moon at Apogee: 406359 km
20 20:17 Pleiades 1.0°S of Moon
22 10 Orionid Meteor Shower
22 14 Saturn in Conjunction with Sun
22 16 Venus at Perihelion
24 13 Mercury at Greatest Elong: 18.3°W
25 06:55 Pollux 3.3°N of Moon
26 00:19 LAST QUARTER MOON
26 14 Jupiter in Conjunction with Sun
28 01:20 Regulus 0.1°S of Moon
28 13:11 Moon at Descending Node
30 22:06 Venus 4.9°N of Moon
31 20:16 Spica 1.8°N of Moon
Nov 01 15:38 Mercury 3.7°N of Spica
01 20:14 NEW MOON
02 01:19 Moon at Perigee: 356834 km
03 19:28 Antares 0.5°N of Moon
06 11 S Taurid Meteor Shower
08 13:15 FIRST QUARTER MOON
10 01:09 Moon at Ascending Node
12 03:56 Venus 3.5°N of Spica
13 10 N Taurid Meteor Shower
15 22:23 Moon at Apogee: 406471 km
16 15:19 FULL MOON
17 02:19 Pleiades 0.9°S of Moon
18 17 Leonid Meteor Shower
19 05 Venus 0.6°S of Saturn
21 13:10 Pollux 3.5°N of Moon
24 09:11 Regulus 0.2°N of Moon
24 14:13 LAST QUARTER MOON
24 15:59 Moon at Descending Node
25 05 Venus 0.5°N of Jupiter
28 00 Mercury at Superior Conjunction
28 07:04 Spica 2.0°N of Moon
30 13:37 Moon at Perigee: 357592 km
Dec 01 06:00 NEW MOON
07 02:24 Moon at Ascending Node
08 05:09 FIRST QUARTER MOON
10 08 Venus 1.0°N of Mars
13 03:26 Moon at Apogee: 406012 km
14 08:41 Pleiades 0.9°S of Moon
15 06 Geminid Meteor Shower
16 10:00 FULL MOON
18 18:52 Pollux 3.7°N of Moon
21 12:51 Winter Solstice
21 15:07 Regulus 0.4°N of Moon
21 16:25 Moon at Descending Node
23 14 Ursid Meteor Shower
24 01:46 LAST QUARTER MOON
25 15:38 Spica 2.2°N of Moon
25 19:43 Mars 4.4°N of Antares
28 17:24 Antares 0.4°N of Moon
28 21:56 Mars 4.9°N of Moon
28 22:45 Moon at Perigee: 361469 km
30 16:56 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
Mountain Standard Time
The following table gives the date and time of the Moon's phases for the year . The times listed are for Mountain Standard Time (Coordinated Universal Time − 7 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 | |||
| Mountain Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | - | Jan 03 06:03 |
| Jan 10 05:55 | Jan 18 05:34 | Jan 25 19:49 | Feb 01 14:16 |
| Feb 08 21:55 | Feb 17 02:22 | Feb 24 07:51 n | Mar 02 23:11 |
| Mar 10 15:28 A | Mar 18 19:58 | Mar 25 18:05 | Apr 01 09:35 |
| Apr 09 09:16 | Apr 17 09:42 | Apr 24 02:43 | Apr 30 22:01 |
| May 09 01:54 | May 16 19:42 | May 23 10:25 | May 30 12:35 |
| Jun 07 16:31 | Jun 15 02:41 | Jun 21 18:11 | Jun 29 04:52 |
| Jul 07 05:06 | Jul 14 07:43 | Jul 21 03:12 | Jul 28 22:09 |
| Aug 05 16:02 | Aug 12 12:10 | Aug 19 14:29 n | Aug 27 15:36 |
| Sep 04 01:49 T | Sep 10 17:35 | Sep 18 04:32 | Sep 26 08:33 |
| Oct 03 11:03 | Oct 10 01:33 | Oct 17 21:06 | Oct 26 00:19 |
| Nov 01 20:14 | Nov 08 13:15 | Nov 16 15:19 | Nov 24 14:13 |
| Dec 01 06:00 | Dec 08 05:09 | Dec 16 10:00 | Dec 24 01:46 |
| Dec 30 16:56 | - | - | - |
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)
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GOES-East Images (NOAA-GOES)
Astronomy Tools (Astronomy Tools)