2091 Sky Event Almanac
Alaska Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Alaska Standard Time (Coordinated Universal Time − 9 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.
| 2091 Sky Event Almanac | ||||||||
| Alaska Standard Time | ||||||||
| January - June | July - December | |||||||
Date AKST Even
(h:m)
Jan 02 14:45 Aldebaran 0.4°S of Moon
03 08:26 Saturn 3.6°N of Moon
04 05 Quadrantid Meteor Shower
04 11 Earth at Perihelion: 0.98327 AU
05 06:50 FULL MOON
08 11:26 Regulus 1.7°N of Moon
09 08:42 Moon at Ascending Node
09 13:29 Moon at Perigee: 368696 km
10 05:32 Mars 2.2°N of Moon
10 11 Mercury 0.7°S of Jupiter
12 03:34 LAST QUARTER MOON
15 16:06 Venus 2.5°S of Moon
16 19 Mercury at Aphelion
17 14:17 Jupiter 4.5°S of Moon
19 07:31 NEW MOON
22 17:23 Moon at Descending Node
25 05:57 Moon at Apogee: 404798 km
27 10:23 FIRST QUARTER MOON
30 00:12 Aldebaran 0.2°S of Moon
30 15:22 Saturn 3.8°N of Moon
Feb 03 19:46 FULL MOON
04 20:08 Regulus 1.6°N of Moon
05 09 Mercury at Superior Conjunction
05 14:51 Moon at Ascending Node
06 00:12 Moon at Perigee: 363106 km
06 14:07 Mars 2.8°N of Moon
10 12:11 LAST QUARTER MOON
10 15 Venus 1.2°N of Jupiter
14 07 Neptune at Opposition
14 07:33 Jupiter 4.4°S of Moon
14 12 Mars at Aphelion: 1.66607 AU
14 15:11 Venus 3.2°S of Moon
18 00:38 NEW MOON
18 00:52 Partial Solar Eclipse; mag=0.656
18 23:55 Moon at Descending Node
21 23:37 Moon at Apogee: 405740 km
26 05:47 FIRST QUARTER MOON
26 08:48 Aldebaran 0.2°S of Moon
26 23:57 Saturn 4.0°N of Moon
Mar 01 19 Mercury at Perihelion
04 06:57 Regulus 1.6°N of Moon
04 14 Mercury at Greatest Elong: 18.2°E
05 01:18 Moon at Ascending Node
05 06:55 Total Lunar Eclipse; mag=1.283
05 06:59 FULL MOON
05 11:49 Mars 3.8°N of Moon
05 20 Uranus in Conjunction with Sun
06 07:02 Moon at Perigee: 358572 km
06 10 Mars at Opposition
11 22:02 LAST QUARTER MOON
13 22:20 Jupiter 4.2°S of Moon
16 19:40 Venus 2.3°S of Moon
18 06:29 Moon at Descending Node
19 18:45 NEW MOON
19 23:40 Vernal Equinox
20 22 Mercury at Inferior Conjunction
21 08:48 Moon at Apogee: 406436 km
25 15:49 Aldebaran 0.2°S of Moon
26 09:34 Saturn 4.0°N of Moon
27 21:31 FIRST QUARTER MOON
31 17:47 Regulus 1.6°N of Moon
Apr 01 08:39 Mars 3.8°N of Moon
01 12:02 Moon at Ascending Node
03 16:31 FULL MOON
03 18:26 Moon at Perigee: 356783 km
09 17 Venus at Aphelion
10 09:45 LAST QUARTER MOON
10 10:54 Jupiter 4.0°S of Moon
13 01 Mercury 0.3°S of Venus
14 10:56 Moon at Descending Node
16 00:05 Mercury 0.5°S of Moon: Occn.
16 01:58 Venus 0.2°N of Moon: Occn.
17 10:25 Moon at Apogee: 406548 km
17 19 Mercury at Greatest Elong: 27.6°W
18 12:20 NEW MOON
21 21:43 Aldebaran 0.4°S of Moon
22 20:09 Saturn 3.9°N of Moon
23 02 Lyrid Meteor Shower
26 09:20 FIRST QUARTER MOON
28 02:39 Regulus 1.4°N of Moon
28 16:08 Mars 2.5°N of Moon
28 19:03 Moon at Ascending Node
May 02 05:03 Moon at Perigee: 358058 km
03 00:46 FULL MOON
04 23 Mercury 1.0°S of Venus
05 15 Eta-Aquarid Meteor Shower
07 21:13 Jupiter 3.7°S of Moon
09 23:36 LAST QUARTER MOON
11 13:02 Moon at Descending Node
14 18:48 Moon at Apogee: 405973 km
16 09:31 Venus 3.0°N of Moon
18 04:07 NEW MOON
20 07:59 Saturn 3.8°N of Moon
25 09:05 Regulus 1.2°N of Moon
25 17:42 FIRST QUARTER MOON
25 21:26 Moon at Ascending Node
26 10:12 Mars 0.6°N of Moon: Occn.
26 19 Mercury at Superior Conjunction
28 18 Mercury at Perihelion
30 10:30 Moon at Perigee: 361863 km
Jun 01 08:31 FULL MOON
04 04:47 Jupiter 3.7°S of Moon
07 14:52 Moon at Descending Node
08 15:22 LAST QUARTER MOON
11 10:05 Moon at Apogee: 404966 km
15 10:19 Aldebaran 0.4°S of Moon
16 17:41 NEW MOON
19 14 Saturn in Conjunction with Sun
20 16:17 Summer Solstice
21 14:19 Regulus 0.9°N of Moon
21 22:09 Moon at Ascending Node
23 11:03 Mars 1.4°S of Moon
23 23:31 FIRST QUARTER MOON
27 02:38 Moon at Perigee: 366857 km
30 02 Mercury at Greatest Elong: 25.6°E
30 16:54 FULL MOON
|
Date AKST Even
(h:m)
Jul 01 09:18 Jupiter 3.8°S of Moon
04 18:55 Moon at Descending Node
07 04 Earth at Aphelion: 1.01668 AU
08 08:21 LAST QUARTER MOON
08 22 Jupiter at Opposition
09 04:01 Moon at Apogee: 404243 km
11 18 Mercury at Aphelion
12 18:10 Aldebaran 0.3°S of Moon
14 11:54 Saturn 3.6°N of Moon
16 05:15 NEW MOON
17 10:32 Mercury 1.9°S of Moon
18 20:18 Regulus 0.8°N of Moon
19 01:19 Moon at Ascending Node
21 16:37 Mars 3.4°S of Moon
22 19:02 Moon at Perigee: 369671 km
23 04:02 FIRST QUARTER MOON
24 17 Venus at Superior Conjunction
27 19 Mercury at Inferior Conjunction
28 11:39 Jupiter 4.1°S of Moon
28 17 Delta-Aquarid Meteor Shower
30 03:01 FULL MOON
31 02 Venus at Perihelion
Aug 01 01:39 Moon at Descending Node
05 22:42 Moon at Apogee: 404324 km
07 01:44 LAST QUARTER MOON
09 02:37 Aldebaran 0.2°S of Moon
11 02:54 Saturn 3.5°N of Moon
11 19:31 Mars 1.6°N of Spica
13 05:27 Mercury 0.9°N of Moon: Occn.
13 09 Perseid Meteor Shower
14 15:22 NEW MOON
14 15:32 Total Solar Eclipse; mag=1.022
15 08:37 Moon at Ascending Node
15 16 Mercury at Greatest Elong: 18.8°W
17 21:08 Moon at Perigee: 366147 km
19 15 Neptune in Conjunction with Sun
21 08:43 FIRST QUARTER MOON
24 14:04 Jupiter 4.3°S of Moon
24 18 Mercury at Perihelion
28 09:21 Moon at Descending Node
28 15:35 Total Lunar Eclipse; mag=1.235
28 15:39 FULL MOON
Sep 02 16:49 Moon at Apogee: 405142 km
05 10:49 Aldebaran 0.2°S of Moon
05 18:47 LAST QUARTER MOON
07 16:47 Saturn 3.4°N of Moon
09 17 Mercury at Superior Conjunction
09 23 Uranus at Opposition
11 14:11 Regulus 0.8°N of Moon
11 18:31 Moon at Ascending Node
13 00:34 NEW MOON
14 16:40 Moon at Perigee: 361131 km
19 15:10 FIRST QUARTER MOON
20 19:23 Jupiter 4.3°S of Moon
22 08:49 Autumnal Equinox
24 15:29 Moon at Descending Node
27 06:56 FULL MOON
28 14:12 Venus 2.6°N of Spica
30 07:41 Moon at Apogee: 406084 km
30 21:26 Mercury 1.5°N of Spica
Oct 02 18:01 Aldebaran 0.3°S of Moon
05 03:41 Saturn 3.2°N of Moon
05 10:53 LAST QUARTER MOON
09 00:33 Regulus 0.7°N of Moon
09 03:41 Moon at Ascending Node
09 14 Mercury 1.9°S of Venus
12 09:29 NEW MOON
13 00:20 Moon at Perigee: 357592 km
13 19:26 Venus 4.9°S of Moon
18 05:38 Jupiter 4.0°S of Moon
19 00:50 FIRST QUARTER MOON
19 04:36 Mars 3.5°N of Antares
21 18:27 Moon at Descending Node
22 01 Orionid Meteor Shower
23 02 Saturn at Perihelion: 9.01429 AU
26 00 Mercury at Greatest Elong: 24.2°E
27 00:18 FULL MOON
27 13:34 Moon at Apogee: 406488 km
30 00:14 Aldebaran 0.5°S of Moon
Nov 01 10:26 Saturn 3.0°N of Moon
04 01:27 LAST QUARTER MOON
04 18:17 Venus 3.7°N of Antares
05 08:49 Moon at Ascending Node
05 09:32 Regulus 0.5°N of Moon
06 02 S Taurid Meteor Shower
10 12:06 Moon at Perigee: 356866 km
10 18:42 NEW MOON
13 01 N Taurid Meteor Shower
14 21:12 Jupiter 3.5°S of Moon
16 23 Mercury at Inferior Conjunction
17 14:38 FIRST QUARTER MOON
17 19:23 Moon at Descending Node
18 07 Leonid Meteor Shower
20 10 Venus at Aphelion
20 17 Mercury at Perihelion
23 14:32 Moon at Apogee: 406275 km
25 18:43 FULL MOON
26 06:14 Aldebaran 0.6°S of Moon
28 13:42 Saturn 2.8°N of Moon
29 21 Venus 0.6°S of Mars
Dec 02 09:51 Moon at Ascending Node
02 16:08 Regulus 0.2°N of Moon
03 13:55 LAST QUARTER MOON
04 02 Mercury at Greatest Elong: 20.4°W
08 18:11 Mercury 3.2°S of Moon
08 23:19 Moon at Perigee: 359394 km
10 04:54 NEW MOON
10 21 Venus 1.6°S of Jupiter
12 09:52 Mars 4.1°S of Moon
12 16:50 Jupiter 3.0°S of Moon
12 20:51 Venus 4.4°S of Moon
14 21 Geminid Meteor Shower
14 22:02 Moon at Descending Node
17 08:29 FIRST QUARTER MOON
19 19 Mars 0.8°S of Jupiter
21 01:59 Moon at Apogee: 405544 km
21 06:37 Winter Solstice
23 05 Ursid Meteor Shower
23 12:55 Aldebaran 0.5°S of Moon
25 12:59 FULL MOON
25 15:53 Saturn 2.9°N of Moon
27 07 Saturn at Opposition
29 10:59 Moon at Ascending Node
29 21:26 Regulus 0.0°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
2091 Phases of the Moon
Alaska Standard Time
The following table gives the date and time of the Moon's phases for the year. The times listed are for Alaska Standard Time (Coordinated Universal Time − 9 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.
| 2091 Phases of the Moon | |||
| Alaska Standard Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 05 06:50 | Jan 12 03:34 |
| Jan 19 07:31 | Jan 27 10:23 | Feb 03 19:46 | Feb 10 12:11 |
| Feb 18 00:38 P | Feb 26 05:47 | Mar 05 06:59 t | Mar 11 22:02 |
| Mar 19 18:45 | Mar 27 21:31 | Apr 03 16:31 | Apr 10 09:45 |
| Apr 18 12:20 | Apr 26 09:20 | May 03 00:46 | May 09 23:36 |
| May 18 04:07 | May 25 17:42 | Jun 01 08:31 | Jun 08 15:22 |
| Jun 16 17:41 | Jun 23 23:31 | Jun 30 16:54 | Jul 08 08:21 |
| Jul 16 05:15 | Jul 23 04:02 | Jul 30 03:01 | Aug 07 01:44 |
| Aug 14 15:22 T | Aug 21 08:43 | Aug 28 15:39 t | Sep 05 18:47 |
| Sep 13 00:34 | Sep 19 15:10 | Sep 27 06:56 | Oct 05 10:53 |
| Oct 12 09:29 | Oct 19 00:50 | Oct 27 00:18 | Nov 04 01:27 |
| Nov 10 18:42 | Nov 17 14:38 | Nov 25 18:43 | Dec 03 13:55 |
| Dec 10 04:54 | Dec 17 08:29 | Dec 25 12:59 | - |
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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Astronomy Tools (Astronomy Tools)