2021 Sky Event Almanac
Cape Verde Time
The following table gives the date and time of the important astronomical events for the year . The times listed are for Cape Verde Time (Coordinated Universal Time − 1 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.
| 2021 Sky Event Almanac | ||||||||
| Cape Verde Time | ||||||||
| January - June | July - December | |||||||
Date CVT Event
(h:m)
Jan 02 13 Earth at Perihelion: 0.98325 AU
02 20:58 Regulus 4.7°S of Moon
03 14 Quadrantid Meteor Shower
06 08:37 LAST QUARTER MOON
09 14:39 Moon at Perigee: 367390 km
10 19:14 Moon at Descending Node
11 19:12 Venus 1.5°N of Moon
13 04:00 NEW MOON
14 07:15 Mercury 2.3°N of Moon
20 20:02 FIRST QUARTER MOON
21 12:11 Moon at Apogee: 404361 km
24 01 Mercury at Greatest Elong: 18.6°E
24 01 Saturn in Conjunction with Sun
24 20:47 Moon at Ascending Node
27 14:46 Pollux 3.8°N of Moon
28 18:16 FULL MOON
29 00 Jupiter in Conjunction with Sun
29 01 Mercury at Perihelion
30 03:56 Regulus 4.6°S of Moon
Feb 03 18:33 Moon at Perigee: 370127 km
04 16:37 LAST QUARTER MOON
06 23:29 Moon at Descending Node
08 13 Mercury at Inferior Conjunction
10 10:16 Saturn 3.4°N of Moon
11 18:06 NEW MOON
18 09:22 Moon at Apogee: 404467 km
18 21:47 Mars 3.7°N of Moon
19 17:47 FIRST QUARTER MOON
20 04 Venus at Aphelion
21 00:44 Moon at Ascending Node
23 07 Mercury 4.0°N of Saturn
24 00:10 Pollux 3.7°N of Moon
26 13:04 Regulus 4.6°S of Moon
27 07:17 FULL MOON
Mar 02 04:19 Moon at Perigee: 365422 km
03 22:36 Mars 2.6°S of Pleiades
05 04 Mercury 0.3°N of Jupiter
05 23:56 Moon at Descending Node
06 00:30 LAST QUARTER MOON
06 10 Mercury at Greatest Elong: 27.3°W
09 22:02 Saturn 3.7°N of Moon
10 14:35 Jupiter 4.0°N of Moon
10 23 Neptune in Conjunction with Sun
11 00:02 Mercury 3.7°N of Moon
13 09:21 NEW MOON
14 01 Mercury at Aphelion
18 04:04 Moon at Apogee: 405253 km
19 16:48 Mars 1.9°N of Moon
20 02:31 Moon at Ascending Node
20 08:37 Vernal Equinox
21 13:40 FIRST QUARTER MOON
23 09:26 Pollux 3.5°N of Moon
25 23:17 Regulus 4.7°S of Moon
26 05 Venus at Superior Conjunction
28 17:48 FULL MOON
30 05:12 Moon at Perigee: 360311 km
Apr 01 19:49 Antares 4.9°S of Moon
02 01:41 Moon at Descending Node
04 09:02 LAST QUARTER MOON
06 07:34 Saturn 4.0°N of Moon
07 06:15 Jupiter 4.4°N of Moon
12 01:31 NEW MOON
14 16:47 Moon at Apogee: 406120 km
16 04:53 Moon at Ascending Node
17 11:09 Mars 0.1°N of Moon: Occn.
19 01 Mercury at Superior Conjunction
19 17:18 Pollux 3.2°N of Moon
20 05:59 FIRST QUARTER MOON
22 11 Lyrid Meteor Shower
27 00 Mercury at Perihelion
27 02:31 FULL MOON
27 14:24 Moon at Perigee: 357379 km
29 05:07 Antares 4.8°S of Moon
29 08:17 Moon at Descending Node
30 20 Uranus in Conjunction with Sun
May 03 16:02 Saturn 4.2°N of Moon
03 18:50 LAST QUARTER MOON
04 02:03 Mercury 2.1°S of Pleiades
04 20:00 Jupiter 4.6°N of Moon
05 00 Eta-Aquarid Meteor Shower
11 18:00 NEW MOON
11 20:54 Moon at Apogee: 406512 km
13 09:29 Moon at Ascending Node
13 16:59 Mercury 2.1°N of Moon
16 03:47 Mars 1.5°S of Moon
16 23:39 Pollux 3.1°N of Moon
17 05 Mercury at Greatest Elong: 22.0°E
19 18:13 FIRST QUARTER MOON
26 00:52 Moon at Perigee: 357310 km
26 10:14 FULL MOON
26 10:19 Total Lunar Eclipse; mag=1.009
26 15:55 Antares 4.8°S of Moon
26 18:38 Moon at Descending Node
29 02 Mercury 0.4°S of Venus
31 00:22 Saturn 4.2°N of Moon
Jun 01 07:57 Jupiter 4.6°N of Moon
02 06:24 LAST QUARTER MOON
08 01:27 Moon at Apogee: 406230 km
09 15:42 Moon at Ascending Node
10 09:42 Annular Solar Eclipse; mag=0.943
10 09:53 NEW MOON
11 00 Mercury at Inferior Conjunction
12 05:44 Venus 1.5°S of Moon
12 12 Venus at Perihelion
13 05:19 Pollux 3.1°N of Moon
13 18:52 Mars 2.8°S of Moon
18 02:54 FIRST QUARTER MOON
21 02:32 Summer Solstice
23 02:26 Antares 4.8°S of Moon
23 05:07 Moon at Descending Node
23 08:58 Moon at Perigee: 359960 km
24 17:40 FULL MOON
27 08:30 Saturn 4.0°N of Moon
28 17:38 Jupiter 4.5°N of Moon
|
Date CVT Event
(h:m)
Jul 01 20:11 LAST QUARTER MOON
04 19 Mercury at Greatest Elong: 21.6°W
05 13:48 Moon at Apogee: 405342 km
05 22 Earth at Aphelion: 1.01673 AU
06 21:41 Moon at Ascending Node
08 03:38 Mercury 3.7°S of Moon
10 00:17 NEW MOON
12 08:10 Venus 3.3°S of Moon
12 09:10 Mars 3.8°S of Moon
12 23 Mars at Aphelion: 1.66596 AU
13 12 Venus 0.5°N of Mars
17 09:11 FIRST QUARTER MOON
20 11:06 Antares 4.7°S of Moon
20 12:22 Moon at Descending Node
21 09:30 Moon at Perigee: 364520 km
21 20:21 Venus 1.0°N of Regulus
24 00 Mercury at Perihelion
24 01:37 FULL MOON
24 15:42 Saturn 3.8°N of Moon
26 00:17 Jupiter 4.2°N of Moon
28 02 Delta-Aquarid Meteor Shower
29 13:09 Mars 0.6°N of Regulus
31 12:16 LAST QUARTER MOON
Aug 01 13 Mercury at Superior Conjunction
02 04 Saturn at Opposition
02 06:35 Moon at Apogee: 404412 km
03 01:51 Moon at Ascending Node
06 18:42 Pollux 3.1°N of Moon
08 12:50 NEW MOON
09 23:42 Mars 4.3°S of Moon
11 06:00 Venus 4.3°S of Moon
12 18 Perseid Meteor Shower
15 14:20 FIRST QUARTER MOON
16 15:04 Moon at Descending Node
16 17:34 Antares 4.5°S of Moon
17 08:23 Moon at Perigee: 369127 km
19 02 Mercury 0.1°S of Mars
19 22 Jupiter at Opposition
20 21:19 Saturn 3.7°N of Moon
22 03:52 Jupiter 4.0°N of Moon
22 11:02 FULL MOON
30 01:22 Moon at Apogee: 404100 km
30 04:13 Moon at Ascending Node
30 06:13 LAST QUARTER MOON
Sep 03 03:04 Pollux 3.0°N of Moon
05 13:32 Venus 1.4°N of Spica
05 23 Mercury at Aphelion
06 23:52 NEW MOON
10 01:09 Venus 4.1°S of Moon
11 09:05 Moon at Perigee: 368464 km
12 15:35 Moon at Descending Node
12 22:59 Antares 4.2°S of Moon
13 19:39 FIRST QUARTER MOON
14 03 Mercury at Greatest Elong: 26.8°E
14 07 Neptune at Opposition
17 01:37 Saturn 3.8°N of Moon
18 05:50 Jupiter 4.0°N of Moon
20 22:55 FULL MOON
21 01:00 Mercury 1.2°S of Spica
22 18:21 Autumnal Equinox
26 06:33 Moon at Ascending Node
26 20:44 Moon at Apogee: 404641 km
29 00:57 LAST QUARTER MOON
30 11:44 Pollux 2.8°N of Moon
Oct 02 21 Venus at Aphelion
06 10:05 NEW MOON
08 03 Mars in Conjunction with Sun
08 16:28 Moon at Perigee: 363388 km
09 15 Mercury at Inferior Conjunction
09 17:36 Venus 2.9°S of Moon
09 18:35 Moon at Descending Node
10 05:27 Antares 4.0°S of Moon
13 02:25 FIRST QUARTER MOON
14 06:12 Saturn 3.9°N of Moon
15 08:58 Jupiter 4.1°N of Moon
16 12:24 Venus 1.4°N of Antares
19 23 Mercury at Perihelion
20 13:57 FULL MOON
21 10 Orionid Meteor Shower
23 04:45 Pleiades 4.5°N of Moon
23 10:47 Moon at Ascending Node
24 14:30 Moon at Apogee: 405616 km
25 04 Mercury at Greatest Elong: 18.4°W
27 19:40 Pollux 2.6°N of Moon
28 19:05 LAST QUARTER MOON
29 21 Venus at Greatest Elong: 47.0°E
Nov 02 00:18 Mercury 3.7°N of Spica
03 17:40 Mercury 1.2°S of Moon: Occn.
04 20:15 NEW MOON
04 23 Uranus at Opposition
05 11 S Taurid Meteor Shower
05 21:23 Moon at Perigee: 358845 km
06 02:38 Moon at Descending Node
06 14:29 Antares 3.9°S of Moon
08 04:21 Venus 1.1°S of Moon: Occn.
10 13:27 Saturn 4.1°N of Moon
11 11:46 FIRST QUARTER MOON
11 16:13 Jupiter 4.4°N of Moon
12 10 N Taurid Meteor Shower
17 17 Leonid Meteor Shower
19 07:58 FULL MOON
19 08:03 Partial Lunar Eclipse; mag=0.974
19 11:21 Pleiades 4.5°N of Moon
19 16:59 Moon at Ascending Node
21 01:14 Moon at Apogee: 406276 km
24 02:22 Pollux 2.5°N of Moon
27 11:28 LAST QUARTER MOON
29 04 Mercury at Superior Conjunction
Dec 02 23:28 Mars 0.7°S of Moon: Occn.
03 13:58 Moon at Descending Node
04 06:33 Total Solar Eclipse; mag=1.037
04 06:43 NEW MOON
04 09:01 Moon at Perigee: 356794 km
06 23:48 Venus 1.9°N of Moon
08 00:52 Saturn 4.2°N of Moon
09 05:07 Jupiter 4.5°N of Moon
11 00:36 FIRST QUARTER MOON
14 06 Geminid Meteor Shower
16 17:30 Pleiades 4.5°N of Moon
16 23:12 Moon at Ascending Node
18 01:16 Moon at Apogee: 406322 km
19 03:36 FULL MOON
21 08:20 Pollux 2.6°N of Moon
21 14:59 Winter Solstice
22 14 Ursid Meteor Shower
27 01:24 LAST QUARTER MOON
27 08:15 Mars 4.4°N of Antares
29 04 Mercury 4.2°S of Venus
31 00:07 Moon at Descending Node
31 12:54 Antares 3.9°S of Moon
31 19:13 Mars 1.0°N of Moon: Occn.
|
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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
2021 Phases of the Moon
Cape Verde Time
The following table gives the date and time of the Moon's phases for the year . The times listed are for Cape Verde Time (Coordinated Universal Time − 1 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.
| 2021 Phases of the Moon | |||
| Cape Verde Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | - | Jan 06 08:37 |
| Jan 13 04:00 | Jan 20 20:02 | Jan 28 18:16 | Feb 04 16:37 |
| Feb 11 18:06 | Feb 19 17:47 | Feb 27 07:17 | Mar 06 00:30 |
| Mar 13 09:21 | Mar 21 13:40 | Mar 28 17:48 | Apr 04 09:02 |
| Apr 12 01:31 | Apr 20 05:59 | Apr 27 02:31 | May 03 18:50 |
| May 11 18:00 | May 19 18:13 | May 26 10:14 t | Jun 02 06:24 |
| Jun 10 09:53 A | Jun 18 02:54 | Jun 24 17:40 | Jul 01 20:11 |
| Jul 10 00:17 | Jul 17 09:11 | Jul 24 01:37 | Jul 31 12:16 |
| Aug 08 12:50 | Aug 15 14:20 | Aug 22 11:02 | Aug 30 06:13 |
| Sep 06 23:52 | Sep 13 19:39 | Sep 20 22:55 | Sep 29 00:57 |
| Oct 06 10:05 | Oct 13 02:25 | Oct 20 13:57 | Oct 28 19:05 |
| Nov 04 20:15 | Nov 11 11:46 | Nov 19 07:58 p | Nov 27 11:28 |
| Dec 04 06:43 T | Dec 11 00:36 | Dec 19 03:36 | Dec 27 01:24 |
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: 2021 to 2030
The Americas
Below are links to sky event almanacs from 2021 to 2030 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 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| AST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| EST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| CST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| MST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| PST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| AKST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| HST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
- 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
For more information and sample pages, see 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)