2099 Sky Event Almanac
Atlantic Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Atlantic Standard Time (Coordinated Universal Time − 4 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 | ||||||||
| Atlantic Standard Time | ||||||||
| January - June | July - December | |||||||
Date AST Event
(h:m)
Jan 03 14:16 Pleiades 0.3°N of Moon
04 11 Quadrantid Meteor Shower
05 02 Earth at Perihelion: 0.98331 AU
06 21:50 FULL MOON
07 08:21 Pollux 1.9°N of Moon
08 14:21 Moon at Perigee: 361107 km
08 16 Mercury at Superior Conjunction
09 16:58 Regulus 3.0°S of Moon
11 09:18 Jupiter 0.1°S of Moon: Occn.
11 22 Venus 2.5°N of Mars
12 11:34 Moon at Descending Node
12 22:20 Saturn 3.2°N of Moon
13 12:55 Spica 0.8°S of Moon
13 13:26 LAST QUARTER MOON
15 08:26 Mars 4.7°N of Antares
17 00:55 Antares 0.2°S of Moon
21 05:07 NEW MOON
24 08:47 Moon at Apogee: 406101 km
26 17:57 Moon at Ascending Node
29 10:38 FIRST QUARTER MOON
30 23:56 Pleiades 0.0°N of Moon
Feb 03 19:31 Pollux 1.8°N of Moon
05 08:48 FULL MOON
06 00:14 Moon at Perigee: 357384 km
06 03:24 Regulus 2.9°S of Moon
07 16:03 Jupiter 0.1°N of Moon: Occn.
08 15:37 Moon at Descending Node
09 00 Mercury at Greatest Elong: 18.2°E
09 05:54 Saturn 3.6°N of Moon
09 20:16 Spica 0.6°S of Moon
11 00 Mercury at Perihelion
12 01:08 LAST QUARTER MOON
13 06:33 Antares 0.0°N of Moon
20 00:05 NEW MOON
20 13:45 Moon at Apogee: 406556 km
22 21:03 Moon at Ascending Node
24 11 Mercury at Inferior Conjunction
27 07:34 Pleiades 0.2°S of Moon
28 02:13 FIRST QUARTER MOON
Mar 03 06:05 Pollux 1.7°N of Moon
03 21 Neptune at Opposition
05 14:53 Regulus 2.9°S of Moon
06 12:59 Moon at Perigee: 356797 km
06 18:59 FULL MOON
06 22:06 Jupiter 0.1°S of Moon: Occn.
08 00:55 Moon at Descending Node
08 09 Jupiter at Opposition
08 13:58 Saturn 3.7°N of Moon
09 06:07 Spica 0.4°S of Moon
12 13:38 Antares 0.2°N of Moon
13 15:00 LAST QUARTER MOON
15 18:11 Mars 4.5°N of Moon
18 16:48 Venus 2.9°N of Moon
19 04:03 Mercury 2.7°N of Moon
19 15:55 Moon at Apogee: 406404 km
20 03:17 Vernal Equinox
21 18:46 NEW MOON
21 18:51 Annular Solar Eclipse; mag=0.932
22 02:42 Moon at Ascending Node
23 09 Mercury at Greatest Elong: 27.8°W
26 13:27 Pleiades 0.2°S of Moon
26 23 Mercury at Aphelion
28 13 Mercury 3.1°N of Venus
29 13:38 FIRST QUARTER MOON
30 14:17 Pollux 1.7°N of Moon
31 03 Saturn at Opposition
Apr 02 01:06 Regulus 2.9°S of Moon
03 03:32 Jupiter 0.4°S of Moon: Occn.
03 23:23 Moon at Perigee: 359339 km
04 12:07 Moon at Descending Node
04 21:45 Saturn 3.5°N of Moon
05 04:28 Partial Lunar Eclipse; mag=0.168
05 04:37 FULL MOON
05 17:10 Spica 0.4°S of Moon
06 23 Uranus in Conjunction with Sun
08 22:43 Antares 0.2°N of Moon
09 01 Venus at Aphelion
12 06:47 LAST QUARTER MOON
13 16:49 Mars 3.2°N of Moon
16 04:34 Moon at Apogee: 405586 km
18 06:21 Venus 1.5°S of Moon
18 09:18 Moon at Ascending Node
19 04:46 Mercury 3.3°S of Moon
20 11:30 NEW MOON
22 19:07 Pleiades 0.2°S of Moon
23 08 Lyrid Meteor Shower
26 20:18 Pollux 1.8°N of Moon
27 21:36 FIRST QUARTER MOON
29 08:48 Regulus 2.8°S of Moon
30 08:57 Jupiter 0.6°S of Moon: Occn.
May 01 20:58 Moon at Descending Node
02 01:55 Moon at Perigee: 364037 km
02 04:19 Saturn 3.3°N of Moon
03 03:20 Spica 0.4°S of Moon
04 09 Mercury at Superior Conjunction
04 13:58 FULL MOON
05 21 Eta-Aquarid Meteor Shower
06 08:45 Antares 0.1°N of Moon
09 23 Mercury at Perihelion
12 00:00 LAST QUARTER MOON
12 18:07 Mars 1.1°N of Moon: Occn.
13 22:22 Moon at Apogee: 404556 km
15 14:38 Moon at Ascending Node
20 01:16 NEW MOON
21 13:36 Mercury 2.7°S of Moon
24 01:48 Pollux 1.9°N of Moon
26 14:35 Regulus 2.6°S of Moon
27 03:16 FIRST QUARTER MOON
27 15:45 Jupiter 0.5°S of Moon: Occn.
29 01:09 Moon at Descending Node
29 03:58 Moon at Perigee: 368838 km
29 09:47 Saturn 3.3°N of Moon
30 11:20 Spica 0.3°S of Moon
Jun 02 18:03 Antares 0.0°N of Moon
02 23:37 FULL MOON
03 18 Mercury at Greatest Elong: 23.4°E
10 17:17 Moon at Apogee: 404057 km
10 17:49 LAST QUARTER MOON
10 20:09 Mars 1.8°S of Moon
11 17:47 Moon at Ascending Node
16 10:12 Pleiades 0.2°S of Moon
18 12:10 NEW MOON
20 08:35 Pollux 2.1°N of Moon
20 19:41 Summer Solstice
22 20:19 Regulus 2.3°S of Moon
23 05:41 Moon at Perigee: 368734 km
24 01:31 Jupiter 0.1°S of Moon: Occn.
25 01:59 Moon at Descending Node
25 08:00 FIRST QUARTER MOON
25 15:40 Saturn 3.5°N of Moon
26 17:22 Spica 0.1°S of Moon
30 01:37 Antares 0.1°N of Moon
30 04 Mercury at Inferior Conjunction
|
Date AST Event
(h:m)
Jul 02 10:21 FULL MOON
07 04 Earth at Aphelion: 1.01666 AU
08 11:42 Moon at Apogee: 404420 km
08 19:53 Moon at Ascending Node
10 11:13 LAST QUARTER MOON
13 19:19 Pleiades 0.3°S of Moon
17 21:01 NEW MOON
20 03:44 Regulus 2.2°S of Moon
20 08:45 Moon at Perigee: 364045 km
21 15:06 Jupiter 0.5°N of Moon: Occn.
21 22 Mercury at Greatest Elong: 20.3°W
22 03:43 Moon at Descending Node
22 17 Venus at Superior Conjunction
22 23:50 Saturn 3.7°N of Moon
23 22:58 Spica 0.2°N of Moon
24 13:09 FIRST QUARTER MOON
27 07:33 Antares 0.3°N of Moon
28 23 Delta-Aquarid Meteor Shower
30 10 Venus at Perihelion
31 22:59 FULL MOON
Aug 03 06 Mars at Perihelion: 1.38105 AU
04 22:59 Moon at Ascending Node
05 04:15 Moon at Apogee: 405336 km
05 22 Mercury at Perihelion
09 03:14 LAST QUARTER MOON
10 04:07 Pleiades 0.5°S of Moon
13 15 Perseid Meteor Shower
14 03:27 Pollux 2.1°N of Moon
16 04:54 NEW MOON
17 02 Mercury at Superior Conjunction
17 10:24 Moon at Perigee: 359644 km
18 08:24 Jupiter 1.1°N of Moon: Occn.
18 09:41 Moon at Descending Node
19 11:25 Saturn 4.0°N of Moon
20 05:59 Spica 0.4°N of Moon
22 20:01 FIRST QUARTER MOON
23 13:06 Antares 0.4°N of Moon
30 13:56 FULL MOON
Sep 01 04:07 Moon at Ascending Node
01 15:45 Moon at Apogee: 406116 km
04 23 Mercury 0.7°S of Jupiter
06 11:36 Pleiades 0.7°S of Moon
06 23 Neptune in Conjunction with Sun
07 17:18 LAST QUARTER MOON
10 13:24 Pollux 2.0°N of Moon
13 00:05 Regulus 2.1°S of Moon
14 10 Mercury 3.0°S of Saturn
14 12:50 NEW MOON
14 12:55 Total Solar Eclipse; mag=1.068
14 19:26 Moon at Perigee: 357286 km
14 19:43 Moon at Descending Node
15 15:50 Venus 2.5°N of Moon
16 02:12 Saturn 4.3°N of Moon
16 03:07 Mercury 0.9°N of Moon: Occn.
16 15:17 Spica 0.4°N of Moon
18 22 Mercury at Aphelion
19 19:54 Antares 0.5°N of Moon
20 19 Venus 1.3°S of Saturn
21 05:48 FIRST QUARTER MOON
21 23:06 Mercury 0.2°N of Spica
22 12:10 Autumnal Equinox
26 05 Jupiter in Conjunction with Sun
28 06:18 Venus 2.6°N of Spica
28 10:27 Moon at Ascending Node
28 18:34 Moon at Apogee: 406272 km
29 06:33 Pen. Lunar Eclipse; mag=1.034
29 06:45 FULL MOON
30 23 Mercury at Greatest Elong: 25.9°E
Oct 03 17:42 Pleiades 0.6°S of Moon
07 05:21 LAST QUARTER MOON
07 21:42 Pollux 2.0°N of Moon
10 02 Saturn in Conjunction with Sun
10 10:19 Regulus 2.1°S of Moon
12 06:41 Moon at Descending Node
12 08 Mercury 3.6°S of Venus
12 12 Uranus at Opposition
13 06:26 Moon at Perigee: 357782 km
13 21:32 NEW MOON
15 05:33 Mercury 0.5°N of Moon: Occn.
15 14:24 Venus 4.2°N of Moon
17 04:52 Antares 0.4°N of Moon
18 04 Mars at Opposition
20 19:27 FIRST QUARTER MOON
22 07 Orionid Meteor Shower
25 06 Mercury at Inferior Conjunction
25 16:00 Moon at Ascending Node
25 23:06 Moon at Apogee: 405825 km
29 00:20 FULL MOON
30 23:23 Pleiades 0.6°S of Moon
Nov 01 22 Mercury at Perihelion
04 03:57 Pollux 2.2°N of Moon
04 10:59 Venus 3.6°N of Antares
05 15:42 LAST QUARTER MOON
06 08 S Taurid Meteor Shower
06 18:26 Regulus 1.9°S of Moon
08 14:30 Moon at Descending Node
09 21:17 Jupiter 3.0°N of Moon
10 03 Mercury at Greatest Elong: 19.0°W
10 10:45 Saturn 5.0°N of Moon
10 12:55 Spica 0.4°N of Moon
10 15:35 Moon at Perigee: 361208 km
12 07:29 NEW MOON
13 07 N Taurid Meteor Shower
13 15:23 Antares 0.3°N of Moon
14 12:49 Venus 3.8°N of Moon
18 13 Leonid Meteor Shower
19 13:17 FIRST QUARTER MOON
19 18 Venus at Aphelion
21 19:17 Moon at Ascending Node
22 13:25 Moon at Apogee: 404988 km
24 00:20 Mars 2.7°S of Moon
27 06:02 Pleiades 0.5°S of Moon
27 17:22 FULL MOON
Dec 01 09:26 Pollux 2.4°N of Moon
04 00:24 Regulus 1.7°S of Moon
05 00:45 LAST QUARTER MOON
05 17:02 Moon at Descending Node
07 13:55 Jupiter 3.7°N of Moon
07 21:33 Spica 0.6°N of Moon
08 11:15 Saturn 4.2°N of Spica
08 13:50 Moon at Perigee: 366610 km
11 19:09 NEW MOON
14 15:02 Venus 2.1°N of Moon
15 03 Geminid Meteor Shower
18 21:01 Moon at Ascending Node
19 02 Mercury at Superior Conjunction
19 10:22 FIRST QUARTER MOON
20 09:16 Moon at Apogee: 404339 km
21 10:04 Winter Solstice
21 20:26 Mars 2.3°S of Moon
23 11 Ursid Meteor Shower
24 14:13 Pleiades 0.6°S of Moon
27 08:58 FULL MOON
28 16:16 Pollux 2.5°N of Moon
31 06:07 Regulus 1.4°S of 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
2099 Phases of the Moon
Atlantic Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Atlantic Standard Time (Coordinated Universal Time − 4 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 | |||
| Atlantic Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 06 21:50 | Jan 13 13:26 |
| Jan 21 05:07 | Jan 29 10:38 | Feb 05 08:48 | Feb 12 01:08 |
| Feb 20 00:05 | Feb 28 02:13 | Mar 06 18:59 | Mar 13 15:00 |
| Mar 21 18:46 A | Mar 29 13:38 | Apr 05 04:37 p | Apr 12 06:47 |
| Apr 20 11:30 | Apr 27 21:36 | May 04 13:58 | May 12 00:00 |
| May 20 01:16 | May 27 03:16 | Jun 02 23:37 | Jun 10 17:49 |
| Jun 18 12:10 | Jun 25 08:00 | Jul 02 10:21 | Jul 10 11:13 |
| Jul 17 21:01 | Jul 24 13:09 | Jul 31 22:59 | Aug 09 03:14 |
| Aug 16 04:54 | Aug 22 20:01 | Aug 30 13:56 | Sep 07 17:18 |
| Sep 14 12:50 T | Sep 21 05:48 | Sep 29 06:45 n | Oct 07 05:21 |
| Oct 13 21:32 | Oct 20 19:27 | Oct 29 00:20 | Nov 05 15:42 |
| Nov 12 07:29 | Nov 19 13:17 | Nov 27 17:22 | Dec 05 00:46 |
| Dec 11 19:09 | Dec 19 10:22 | Dec 27 08:58 | - |
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 | |||||
- 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
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