2020 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.
| 2020 Sky Event Almanac | ||||||||
| Argentina Time | ||||||||
| January - June | July - December | |||||||
Date ART Event
(h:m)
Jan 01 22:30 Moon at Apogee: 404580 km
03 01:45 FIRST QUARTER MOON
04 06 Quadrantid Meteor Shower
05 05 Earth at Perihelion: 0.98324 AU
07 18:09 Aldebaran 3.0°S of Moon
09 20:29 Moon at Ascending Node
10 12 Mercury at Superior Conjunction
10 16:10 Pen. Lunar Eclipse; mag=0.896
10 16:21 FULL MOON
13 08:37 Regulus 3.8°S of Moon
13 11 Saturn in Conjunction with Sun
13 17:20 Moon at Perigee: 365964 km
17 09:58 LAST QUARTER MOON
17 20:03 Mars 4.7°N of Antares
20 16:13 Mars 2.3°S of Moon
22 17:31 Moon at Descending Node
22 23:42 Jupiter 0.4°N of Moon: Occn.
24 18:42 NEW MOON
28 04:29 Venus 4.1°N of Moon
29 18:28 Moon at Apogee: 405390 km
Feb 01 22:42 FIRST QUARTER MOON
04 03:53 Aldebaran 3.1°S of Moon
06 05:59 Moon at Ascending Node
09 04:33 FULL MOON
09 18:15 Regulus 3.8°S of Moon
10 11 Mercury at Greatest Elong: 18.2°E
10 17:31 Moon at Perigee: 360464 km
12 02 Mercury at Perihelion
15 19:17 LAST QUARTER MOON
18 10:18 Mars 0.8°S of Moon: Occn.
18 21:12 Moon at Descending Node
19 16:36 Jupiter 0.9°N of Moon: Occn.
20 10:47 Saturn 1.7°N of Moon
23 12:32 NEW MOON
25 23 Mercury at Inferior Conjunction
26 08:35 Moon at Apogee: 406277 km
Mar 02 12:16 Aldebaran 3.3°S of Moon
02 16:57 FIRST QUARTER MOON
04 11:58 Moon at Ascending Node
08 05:23 Regulus 3.8°S of Moon
08 09 Neptune in Conjunction with Sun
09 14:48 FULL MOON
10 03:33 Moon at Perigee: 357123 km
16 06:34 LAST QUARTER MOON
16 22:00 Moon at Descending Node
18 05:19 Mars 0.7°N of Moon: Occn.
18 07:18 Jupiter 1.5°N of Moon
18 21:04 Saturn 2.1°N of Moon
20 00:50 Vernal Equinox
20 01 Venus at Perihelion
20 07 Mars 0.7°S of Jupiter
21 14:48 Mercury 3.6°N of Moon
23 23 Mercury at Greatest Elong: 27.8°W
24 06:28 NEW MOON
24 12:23 Moon at Apogee: 406690 km
24 19 Venus at Greatest Elong: 46.1°E
27 02 Mercury at Aphelion
29 18:52 Aldebaran 3.6°S of Moon
31 13:51 Moon at Ascending Node
31 17 Mars 0.9°S of Saturn
Apr 01 07:21 FIRST QUARTER MOON
03 11:36 Venus 0.3°S of Pleiades
04 15:45 Regulus 3.9°S of Moon
07 15:08 Moon at Perigee: 356909 km
07 23:35 FULL MOON
12 23:58 Moon at Descending Node
14 19:56 LAST QUARTER MOON
14 20:04 Jupiter 2.0°N of Moon
15 06:26 Saturn 2.5°N of Moon
16 01:33 Mars 2.0°N of Moon
20 16:01 Moon at Apogee: 406463 km
22 03 Lyrid Meteor Shower
22 23:26 NEW MOON
26 00:34 Aldebaran 3.8°S of Moon
26 07 Uranus in Conjunction with Sun
27 14:54 Moon at Ascending Node
29 11:19 Pollux 4.7°N of Moon
30 17:38 FIRST QUARTER MOON
May 01 23:49 Regulus 4.2°S of Moon
04 16 Eta-Aquarid Meteor Shower
04 18 Mercury at Superior Conjunction
06 00:03 Moon at Perigee: 359656 km
07 07:45 FULL MOON
10 01 Mercury at Perihelion
10 06:01 Moon at Descending Node
12 06:40 Jupiter 2.3°N of Moon
12 15:18 Saturn 2.7°N of Moon
14 11:03 LAST QUARTER MOON
14 23:00 Mars 2.8°N of Moon
17 23 Jupiter 4.8°S of Saturn
18 04:45 Moon at Apogee: 405584 km
22 07 Mercury 0.9°S of Venus
22 14:39 NEW MOON
23 23:40 Venus 3.7°N of Moon
24 07:53 Mercury 2.8°N of Moon
24 18:34 Moon at Ascending Node
26 16:43 Pollux 4.6°N of Moon
29 05:44 Regulus 4.3°S of Moon
30 00:30 FIRST QUARTER MOON
Jun 03 00:36 Moon at Perigee: 364366 km
03 15 Venus at Inferior Conjunction
04 10 Mercury at Greatest Elong: 23.6°E
05 16:12 FULL MOON
05 16:25 Pen. Lunar Eclipse; mag=0.568
06 15:10 Moon at Descending Node
08 14:19 Jupiter 2.2°N of Moon
08 23:19 Saturn 2.7°N of Moon
12 20:53 Mars 2.7°N of Moon
13 03:24 LAST QUARTER MOON
14 21:56 Moon at Apogee: 404597 km
19 05:52 Venus 0.7°S of Moon: Occn.
19 13:56 Aldebaran 3.8°S of Moon
20 18:43 Summer Solstice
21 01:24 Moon at Ascending Node
21 03:40 Annular Solar Eclipse; mag=0.994
21 03:41 NEW MOON
22 22:53 Pollux 4.5°N of Moon
25 11:09 Regulus 4.3°S of Moon
28 05:16 FIRST QUARTER MOON
29 23:09 Moon at Perigee: 368958 km
|
Date ART Event
(h:m)
Jul 01 00 Mercury at Inferior Conjunction
04 00:18 Moon at Descending Node
04 10 Earth at Aphelion: 1.01669 AU
05 01:30 Pen. Lunar Eclipse; mag=0.355
05 01:44 FULL MOON
05 18:37 Jupiter 1.9°N of Moon
06 05:45 Saturn 2.5°N of Moon
10 09 Venus at Aphelion
11 09:10 Venus 1.0°N of Aldebaran
11 16:36 Mars 2.0°N of Moon
12 16:27 Moon at Apogee: 404201 km
12 20:29 LAST QUARTER MOON
14 04 Jupiter at Opposition
16 22:21 Aldebaran 3.8°S of Moon
17 04:26 Venus 3.1°S of Moon
18 09:33 Moon at Ascending Node
19 00:54 Mercury 3.9°S of Moon
20 14:33 NEW MOON
20 19 Saturn at Opposition
22 12 Mercury at Greatest Elong: 20.1°W
22 17:50 Regulus 4.3°S of Moon
25 01:54 Moon at Perigee: 368367 km
27 09:32 FIRST QUARTER MOON
27 18 Delta-Aquarid Meteor Shower
31 06:32 Moon at Descending Node
Aug 01 20:30 Jupiter 1.5°N of Moon
02 10:17 Saturn 2.3°N of Moon
03 06 Mars at Perihelion: 1.38138 AU
03 12:59 FULL MOON
06 01 Mercury at Perihelion
09 04:57 Mars 0.8°N of Moon: Occn.
09 10:51 Moon at Apogee: 404658 km
11 13:45 LAST QUARTER MOON
12 10 Perseid Meteor Shower
12 22 Venus at Greatest Elong: 45.8°W
13 07:06 Aldebaran 4.0°S of Moon
14 16:22 Moon at Ascending Node
15 10:01 Venus 4.0°S of Moon
16 16:10 Pollux 4.5°N of Moon
17 12 Mercury at Superior Conjunction
18 23:41 NEW MOON
21 07:59 Moon at Perigee: 363513 km
25 14:58 FIRST QUARTER MOON
27 08:52 Moon at Descending Node
28 22:33 Jupiter 1.4°N of Moon
29 13:40 Saturn 2.2°N of Moon
Sep 02 02:22 FULL MOON
06 01:42 Mars 0.0°S of Moon: Occn.
06 03:31 Moon at Apogee: 405606 km
09 15:12 Aldebaran 4.2°S of Moon
10 06:26 LAST QUARTER MOON
10 20:05 Moon at Ascending Node
11 16 Neptune at Opposition
13 01:50 Pollux 4.3°N of Moon
14 01:43 Venus 4.5°S of Moon
15 12:51 Regulus 4.3°S of Moon
17 08:00 NEW MOON
18 10:44 Moon at Perigee: 359081 km
19 00 Mercury at Aphelion
22 03:06 Mercury 0.3°N of Spica
22 10:31 Autumnal Equinox
23 09:33 Moon at Descending Node
23 22:55 FIRST QUARTER MOON
25 03:46 Jupiter 1.6°N of Moon
25 17:46 Saturn 2.3°N of Moon
Oct 01 13 Mercury at Greatest Elong: 25.8°E
01 18:05 FULL MOON
02 14:09 Venus 0.1°S of Regulus
03 00:21 Mars 0.7°N of Moon: Occn.
03 14:22 Moon at Apogee: 406321 km
06 22:02 Aldebaran 4.5°S of Moon
07 21:29 Moon at Ascending Node
09 21:39 LAST QUARTER MOON
10 10:18 Pollux 4.1°N of Moon
12 22:59 Regulus 4.5°S of Moon
13 20 Mars at Opposition
13 20:57 Venus 4.3°S of Moon
16 16:31 NEW MOON
16 20:46 Moon at Perigee: 356913 km
20 12:53 Moon at Descending Node
21 02 Orionid Meteor Shower
22 14:10 Jupiter 2.0°N of Moon
23 00:49 Saturn 2.6°N of Moon
23 10:23 FIRST QUARTER MOON
25 15 Mercury at Inferior Conjunction
29 13:13 Mars 3.0°N of Moon
30 15:46 Moon at Apogee: 406393 km
30 18 Venus at Perihelion
31 11:49 FULL MOON
31 13 Uranus at Opposition
Nov 02 00 Mercury at Perihelion
03 23:39 Moon at Ascending Node
05 03 S Taurid Meteor Shower
06 16:52 Pollux 3.9°N of Moon
08 10:46 LAST QUARTER MOON
09 07:20 Regulus 4.7°S of Moon
10 14 Mercury at Greatest Elong: 19.1°W
12 02 N Taurid Meteor Shower
12 18:30 Venus 3.1°S of Moon
13 17:45 Mercury 1.7°S of Moon
14 08:48 Moon at Perigee: 357839 km
15 02:07 NEW MOON
16 10:27 Venus 3.6°N of Spica
16 21:07 Moon at Descending Node
17 08 Leonid Meteor Shower
19 05:54 Jupiter 2.5°N of Moon
19 11:57 Saturn 2.9°N of Moon
22 01:45 FIRST QUARTER MOON
26 21:29 Moon at Apogee: 405891 km
30 06:30 FULL MOON
30 06:43 Pen. Lunar Eclipse; mag=0.829
Dec 01 04:46 Moon at Ascending Node
03 22:24 Pollux 3.8°N of Moon
06 13:28 Regulus 4.8°S of Moon
07 21:37 LAST QUARTER MOON
12 17:40 Venus 0.8°S of Moon: Occn.
12 17:42 Moon at Perigee: 361777 km
13 22 Geminid Meteor Shower
14 08:03 Moon at Descending Node
14 13:13 Total Solar Eclipse; mag=1.025
14 13:17 NEW MOON
17 01:28 Jupiter 2.9°N of Moon
17 02:25 Saturn 3.1°N of Moon
20 00 Mercury at Superior Conjunction
21 07:03 Winter Solstice
21 20:41 FIRST QUARTER MOON
22 06 Ursid Meteor Shower
22 06 Jupiter 0.1°S of Saturn
24 13:32 Moon at Apogee: 405010 km
28 12:03 Moon at Ascending Node
30 00:28 FULL MOON
31 04:41 Pollux 3.8°N 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
2020 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.
| 2020 Phases of the Moon | |||
| Argentina Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | Jan 03 01:45 | Jan 10 16:21 n | Jan 17 09:58 |
| Jan 24 18:42 | Feb 01 22:42 | Feb 09 04:33 | Feb 15 19:17 |
| Feb 23 12:32 | Mar 02 16:57 | Mar 09 14:48 | Mar 16 06:34 |
| Mar 24 06:28 | Apr 01 07:21 | Apr 07 23:35 | Apr 14 19:56 |
| Apr 22 23:26 | Apr 30 17:38 | May 07 07:45 | May 14 11:03 |
| May 22 14:39 | May 30 00:30 | Jun 05 16:12 n | Jun 13 03:24 |
| Jun 21 03:41 A | Jun 28 05:16 | Jul 05 01:44 n | Jul 12 20:29 |
| Jul 20 14:33 | Jul 27 09:32 | Aug 03 12:59 | Aug 11 13:45 |
| Aug 18 23:41 | Aug 25 14:58 | Sep 02 02:22 | Sep 10 06:26 |
| Sep 17 08:00 | Sep 23 22:55 | Oct 01 18:05 | Oct 09 21:39 |
| Oct 16 16:31 | Oct 23 10:23 | Oct 31 11:49 | Nov 08 10:46 |
| Nov 15 02:07 | Nov 22 01:45 | Nov 30 06:30 n | Dec 07 21:37 |
| Dec 14 13:17 T | Dec 21 20:41 | Dec 30 00:28 | - |
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: 2011 to 2020
The Americas
Below are links to sky event almanacs from 2011 to 2020 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 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| EST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| CST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| MST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| PST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| AKST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
| HST | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |||||
- 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)