2091 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.
| 2091 Sky Event Almanac | ||||||||
| Argentina Time | ||||||||
| January - June | July - December | |||||||
Date ART Event
(h:m)
Jan 02 20:45 Aldebaran 0.4°S of Moon
03 14:26 Saturn 3.6°N of Moon
04 11 Quadrantid Meteor Shower
04 17 Earth at Perihelion: 0.98327 AU
05 12:50 FULL MOON
08 17:26 Regulus 1.7°N of Moon
09 14:42 Moon at Ascending Node
09 19:29 Moon at Perigee: 368696 km
10 11:32 Mars 2.2°N of Moon
10 17 Mercury 0.7°S of Jupiter
12 09:34 LAST QUARTER MOON
15 22:06 Venus 2.5°S of Moon
17 01 Mercury at Aphelion
17 20:17 Jupiter 4.5°S of Moon
19 13:31 NEW MOON
22 23:23 Moon at Descending Node
25 11:57 Moon at Apogee: 404798 km
27 16:23 FIRST QUARTER MOON
30 06:12 Aldebaran 0.2°S of Moon
30 21:22 Saturn 3.8°N of Moon
Feb 04 01:46 FULL MOON
05 02:08 Regulus 1.6°N of Moon
05 15 Mercury at Superior Conjunction
05 20:51 Moon at Ascending Node
06 06:12 Moon at Perigee: 363106 km
06 20:07 Mars 2.8°N of Moon
10 18:11 LAST QUARTER MOON
10 21 Venus 1.2°N of Jupiter
14 13 Neptune at Opposition
14 13:33 Jupiter 4.4°S of Moon
14 18 Mars at Aphelion: 1.66607 AU
14 21:11 Venus 3.2°S of Moon
18 06:38 NEW MOON
18 06:52 Partial Solar Eclipse; mag=0.656
19 05:55 Moon at Descending Node
22 05:37 Moon at Apogee: 405740 km
26 11:47 FIRST QUARTER MOON
26 14:48 Aldebaran 0.2°S of Moon
27 05:57 Saturn 4.0°N of Moon
Mar 02 01 Mercury at Perihelion
04 12:57 Regulus 1.6°N of Moon
04 20 Mercury at Greatest Elong: 18.2°E
05 07:18 Moon at Ascending Node
05 12:55 Total Lunar Eclipse; mag=1.283
05 12:59 FULL MOON
05 17:49 Mars 3.8°N of Moon
06 02 Uranus in Conjunction with Sun
06 13:02 Moon at Perigee: 358572 km
06 16 Mars at Opposition
12 04:02 LAST QUARTER MOON
14 04:20 Jupiter 4.2°S of Moon
17 01:40 Venus 2.3°S of Moon
18 12:29 Moon at Descending Node
20 00:45 NEW MOON
20 05:40 Vernal Equinox
21 04 Mercury at Inferior Conjunction
21 14:48 Moon at Apogee: 406436 km
25 21:49 Aldebaran 0.2°S of Moon
26 15:34 Saturn 4.0°N of Moon
28 03:31 FIRST QUARTER MOON
31 23:47 Regulus 1.6°N of Moon
Apr 01 14:39 Mars 3.8°N of Moon
01 18:02 Moon at Ascending Node
03 22:31 FULL MOON
04 00:26 Moon at Perigee: 356783 km
09 23 Venus at Aphelion
10 15:45 LAST QUARTER MOON
10 16:54 Jupiter 4.0°S of Moon
13 07 Mercury 0.3°S of Venus
14 16:56 Moon at Descending Node
16 06:05 Mercury 0.5°S of Moon: Occn.
16 07:58 Venus 0.2°N of Moon: Occn.
17 16:25 Moon at Apogee: 406548 km
18 01 Mercury at Greatest Elong: 27.6°W
18 18:20 NEW MOON
22 03:43 Aldebaran 0.4°S of Moon
23 02:09 Saturn 3.9°N of Moon
23 08 Lyrid Meteor Shower
26 15:20 FIRST QUARTER MOON
28 08:39 Regulus 1.4°N of Moon
28 22:08 Mars 2.5°N of Moon
29 01:03 Moon at Ascending Node
May 02 11:03 Moon at Perigee: 358058 km
03 06:46 FULL MOON
05 05 Mercury 1.0°S of Venus
05 21 Eta-Aquarid Meteor Shower
08 03:13 Jupiter 3.7°S of Moon
10 05:36 LAST QUARTER MOON
11 19:02 Moon at Descending Node
15 00:48 Moon at Apogee: 405973 km
16 15:31 Venus 3.0°N of Moon
18 10:07 NEW MOON
20 13:59 Saturn 3.8°N of Moon
25 15:05 Regulus 1.2°N of Moon
25 23:42 FIRST QUARTER MOON
26 03:26 Moon at Ascending Node
26 16:12 Mars 0.6°N of Moon: Occn.
27 01 Mercury at Superior Conjunction
29 00 Mercury at Perihelion
30 16:30 Moon at Perigee: 361863 km
Jun 01 14:31 FULL MOON
04 10:47 Jupiter 3.7°S of Moon
07 20:52 Moon at Descending Node
08 21:22 LAST QUARTER MOON
11 16:05 Moon at Apogee: 404966 km
15 16:19 Aldebaran 0.4°S of Moon
16 23:41 NEW MOON
19 20 Saturn in Conjunction with Sun
20 22:17 Summer Solstice
21 20:19 Regulus 0.9°N of Moon
22 04:09 Moon at Ascending Node
23 17:03 Mars 1.4°S of Moon
24 05:31 FIRST QUARTER MOON
27 08:38 Moon at Perigee: 366857 km
30 08 Mercury at Greatest Elong: 25.6°E
30 22:54 FULL MOON
|
Date ART Event
(h:m)
Jul 01 15:18 Jupiter 3.8°S of Moon
05 00:55 Moon at Descending Node
07 10 Earth at Aphelion: 1.01668 AU
08 14:21 LAST QUARTER MOON
09 04 Jupiter at Opposition
09 10:01 Moon at Apogee: 404243 km
12 00 Mercury at Aphelion
13 00:10 Aldebaran 0.3°S of Moon
14 17:54 Saturn 3.6°N of Moon
16 11:15 NEW MOON
17 16:32 Mercury 1.9°S of Moon
19 02:18 Regulus 0.8°N of Moon
19 07:19 Moon at Ascending Node
21 22:37 Mars 3.4°S of Moon
23 01:02 Moon at Perigee: 369671 km
23 10:02 FIRST QUARTER MOON
24 23 Venus at Superior Conjunction
28 01 Mercury at Inferior Conjunction
28 17:39 Jupiter 4.1°S of Moon
28 23 Delta-Aquarid Meteor Shower
30 09:01 FULL MOON
31 08 Venus at Perihelion
Aug 01 07:39 Moon at Descending Node
06 04:42 Moon at Apogee: 404324 km
07 07:44 LAST QUARTER MOON
09 08:37 Aldebaran 0.2°S of Moon
11 08:54 Saturn 3.5°N of Moon
12 01:31 Mars 1.6°N of Spica
13 11:27 Mercury 0.9°N of Moon: Occn.
13 15 Perseid Meteor Shower
14 21:22 NEW MOON
14 21:32 Total Solar Eclipse; mag=1.022
15 14:37 Moon at Ascending Node
15 22 Mercury at Greatest Elong: 18.8°W
18 03:08 Moon at Perigee: 366147 km
19 21 Neptune in Conjunction with Sun
21 14:43 FIRST QUARTER MOON
24 20:04 Jupiter 4.3°S of Moon
25 00 Mercury at Perihelion
28 15:21 Moon at Descending Node
28 21:35 Total Lunar Eclipse; mag=1.235
28 21:39 FULL MOON
Sep 02 22:49 Moon at Apogee: 405142 km
05 16:49 Aldebaran 0.2°S of Moon
06 00:47 LAST QUARTER MOON
07 22:47 Saturn 3.4°N of Moon
09 23 Mercury at Superior Conjunction
10 05 Uranus at Opposition
11 20:11 Regulus 0.8°N of Moon
12 00:31 Moon at Ascending Node
13 06:34 NEW MOON
14 22:40 Moon at Perigee: 361131 km
19 21:10 FIRST QUARTER MOON
21 01:23 Jupiter 4.3°S of Moon
22 14:49 Autumnal Equinox
24 21:29 Moon at Descending Node
27 12:56 FULL MOON
28 20:12 Venus 2.6°N of Spica
30 13:41 Moon at Apogee: 406084 km
Oct 01 03:26 Mercury 1.5°N of Spica
03 00:01 Aldebaran 0.3°S of Moon
05 09:41 Saturn 3.2°N of Moon
05 16:53 LAST QUARTER MOON
09 06:33 Regulus 0.7°N of Moon
09 09:41 Moon at Ascending Node
09 20 Mercury 1.9°S of Venus
12 15:29 NEW MOON
13 06:20 Moon at Perigee: 357592 km
14 01:26 Venus 4.9°S of Moon
18 11:38 Jupiter 4.0°S of Moon
19 06:50 FIRST QUARTER MOON
19 10:36 Mars 3.5°N of Antares
22 00:27 Moon at Descending Node
22 07 Orionid Meteor Shower
23 08 Saturn at Perihelion: 9.01429 AU
26 06 Mercury at Greatest Elong: 24.2°E
27 06:18 FULL MOON
27 19:34 Moon at Apogee: 406488 km
30 06:14 Aldebaran 0.5°S of Moon
Nov 01 16:26 Saturn 3.0°N of Moon
04 07:27 LAST QUARTER MOON
05 00:17 Venus 3.7°N of Antares
05 14:49 Moon at Ascending Node
05 15:32 Regulus 0.5°N of Moon
06 08 S Taurid Meteor Shower
10 18:06 Moon at Perigee: 356866 km
11 00:42 NEW MOON
13 07 N Taurid Meteor Shower
15 03:12 Jupiter 3.5°S of Moon
17 05 Mercury at Inferior Conjunction
17 20:38 FIRST QUARTER MOON
18 01:23 Moon at Descending Node
18 13 Leonid Meteor Shower
20 16 Venus at Aphelion
20 23 Mercury at Perihelion
23 20:32 Moon at Apogee: 406275 km
26 00:43 FULL MOON
26 12:14 Aldebaran 0.6°S of Moon
28 19:42 Saturn 2.8°N of Moon
30 03 Venus 0.6°S of Mars
Dec 02 15:51 Moon at Ascending Node
02 22:08 Regulus 0.2°N of Moon
03 19:55 LAST QUARTER MOON
04 08 Mercury at Greatest Elong: 20.4°W
09 00:11 Mercury 3.2°S of Moon
09 05:19 Moon at Perigee: 359394 km
10 10:54 NEW MOON
11 03 Venus 1.6°S of Jupiter
12 15:52 Mars 4.1°S of Moon
12 22:50 Jupiter 3.0°S of Moon
13 02:51 Venus 4.4°S of Moon
15 03 Geminid Meteor Shower
15 04:02 Moon at Descending Node
17 14:29 FIRST QUARTER MOON
20 01 Mars 0.8°S of Jupiter
21 07:59 Moon at Apogee: 405544 km
21 12:37 Winter Solstice
23 11 Ursid Meteor Shower
23 18:55 Aldebaran 0.5°S of Moon
25 18:59 FULL MOON
25 21:53 Saturn 2.9°N of Moon
27 13 Saturn at Opposition
29 16:59 Moon at Ascending Node
30 03:26 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
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.
| 2091 Phases of the Moon | |||
| Argentina Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | Jan 05 12:50 | Jan 12 09:34 |
| Jan 19 13:31 | Jan 27 16:23 | Feb 04 01:46 | Feb 10 18:11 |
| Feb 18 06:38 P | Feb 26 11:47 | Mar 05 12:59 t | Mar 12 04:02 |
| Mar 20 00:45 | Mar 28 03:31 | Apr 03 22:31 | Apr 10 15:45 |
| Apr 18 18:20 | Apr 26 15:20 | May 03 06:46 | May 10 05:36 |
| May 18 10:07 | May 25 23:42 | Jun 01 14:31 | Jun 08 21:22 |
| Jun 16 23:41 | Jun 24 05:31 | Jun 30 22:54 | Jul 08 14:21 |
| Jul 16 11:15 | Jul 23 10:02 | Jul 30 09:01 | Aug 07 07:44 |
| Aug 14 21:22 T | Aug 21 14:43 | Aug 28 21:39 t | Sep 06 00:47 |
| Sep 13 06:34 | Sep 19 21:10 | Sep 27 12:56 | Oct 05 16:53 |
| Oct 12 15:29 | Oct 19 06:50 | Oct 27 06:18 | Nov 04 07:27 |
| Nov 11 00:42 | Nov 17 20:38 | Nov 26 00:43 | Dec 03 19:55 |
| Dec 10 10:54 | Dec 17 14:29 | Dec 25 18:59 | - |
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
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)