2021 Sky Event Almanac
Indochina Time
The following table gives the date and time of the important astronomical events for the year . The times listed are for Indochina Time (Coordinated Universal Time + 7 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 | ||||||||
| Indochina Time | ||||||||
| January - June | July - December | |||||||
Date ICT Event
(h:m)
Jan 02 21 Earth at Perihelion: 0.98325 AU
03 04:58 Regulus 4.7°S of Moon
03 22 Quadrantid Meteor Shower
06 16:37 LAST QUARTER MOON
09 22:39 Moon at Perigee: 367390 km
11 03:14 Moon at Descending Node
12 03:12 Venus 1.5°N of Moon
13 12:00 NEW MOON
14 15:15 Mercury 2.3°N of Moon
21 04:02 FIRST QUARTER MOON
21 20:11 Moon at Apogee: 404361 km
24 09 Mercury at Greatest Elong: 18.6°E
24 09 Saturn in Conjunction with Sun
25 04:47 Moon at Ascending Node
27 22:46 Pollux 3.8°N of Moon
29 02:16 FULL MOON
29 08 Jupiter in Conjunction with Sun
29 09 Mercury at Perihelion
30 11:56 Regulus 4.6°S of Moon
Feb 04 02:33 Moon at Perigee: 370127 km
05 00:37 LAST QUARTER MOON
07 07:29 Moon at Descending Node
08 21 Mercury at Inferior Conjunction
10 18:16 Saturn 3.4°N of Moon
12 02:06 NEW MOON
18 17:22 Moon at Apogee: 404467 km
19 05:47 Mars 3.7°N of Moon
20 01:47 FIRST QUARTER MOON
20 12 Venus at Aphelion
21 08:44 Moon at Ascending Node
23 15 Mercury 4.0°N of Saturn
24 08:10 Pollux 3.7°N of Moon
26 21:04 Regulus 4.6°S of Moon
27 15:17 FULL MOON
Mar 02 12:19 Moon at Perigee: 365422 km
04 06:36 Mars 2.6°S of Pleiades
05 12 Mercury 0.3°N of Jupiter
06 07:56 Moon at Descending Node
06 08:30 LAST QUARTER MOON
06 18 Mercury at Greatest Elong: 27.3°W
10 06:02 Saturn 3.7°N of Moon
10 22:35 Jupiter 4.0°N of Moon
11 07 Neptune in Conjunction with Sun
11 08:02 Mercury 3.7°N of Moon
13 17:21 NEW MOON
14 09 Mercury at Aphelion
18 12:04 Moon at Apogee: 405253 km
20 00:48 Mars 1.9°N of Moon
20 10:31 Moon at Ascending Node
20 16:37 Vernal Equinox
21 21:40 FIRST QUARTER MOON
23 17:26 Pollux 3.5°N of Moon
26 07:17 Regulus 4.7°S of Moon
26 13 Venus at Superior Conjunction
29 01:48 FULL MOON
30 13:12 Moon at Perigee: 360311 km
Apr 02 03:49 Antares 4.9°S of Moon
02 09:41 Moon at Descending Node
04 17:02 LAST QUARTER MOON
06 15:34 Saturn 4.0°N of Moon
07 14:15 Jupiter 4.4°N of Moon
12 09:31 NEW MOON
15 00:47 Moon at Apogee: 406120 km
16 12:53 Moon at Ascending Node
17 19:09 Mars 0.1°N of Moon: Occn.
19 09 Mercury at Superior Conjunction
20 01:18 Pollux 3.2°N of Moon
20 13:59 FIRST QUARTER MOON
22 19 Lyrid Meteor Shower
27 08 Mercury at Perihelion
27 10:31 FULL MOON
27 22:24 Moon at Perigee: 357379 km
29 13:07 Antares 4.8°S of Moon
29 16:17 Moon at Descending Node
May 01 04 Uranus in Conjunction with Sun
04 00:02 Saturn 4.2°N of Moon
04 02:50 LAST QUARTER MOON
04 10:03 Mercury 2.1°S of Pleiades
05 04:00 Jupiter 4.6°N of Moon
05 08 Eta-Aquarid Meteor Shower
12 02:00 NEW MOON
12 04:54 Moon at Apogee: 406512 km
13 17:29 Moon at Ascending Node
14 00:59 Mercury 2.1°N of Moon
16 11:47 Mars 1.5°S of Moon
17 07:39 Pollux 3.1°N of Moon
17 13 Mercury at Greatest Elong: 22.0°E
20 02:13 FIRST QUARTER MOON
26 08:52 Moon at Perigee: 357310 km
26 18:14 FULL MOON
26 18:19 Total Lunar Eclipse; mag=1.009
26 23:55 Antares 4.8°S of Moon
27 02:38 Moon at Descending Node
29 10 Mercury 0.4°S of Venus
31 08:22 Saturn 4.2°N of Moon
Jun 01 15:57 Jupiter 4.6°N of Moon
02 14:24 LAST QUARTER MOON
08 09:27 Moon at Apogee: 406230 km
09 23:42 Moon at Ascending Node
10 17:42 Annular Solar Eclipse; mag=0.943
10 17:53 NEW MOON
11 08 Mercury at Inferior Conjunction
12 13:44 Venus 1.5°S of Moon
12 20 Venus at Perihelion
13 13:19 Pollux 3.1°N of Moon
14 02:52 Mars 2.8°S of Moon
18 10:54 FIRST QUARTER MOON
21 10:32 Summer Solstice
23 10:26 Antares 4.8°S of Moon
23 13:07 Moon at Descending Node
23 16:58 Moon at Perigee: 359960 km
25 01:40 FULL MOON
27 16:30 Saturn 4.0°N of Moon
29 01:38 Jupiter 4.5°N of Moon
|
Date ICT Event
(h:m)
Jul 02 04:11 LAST QUARTER MOON
05 03 Mercury at Greatest Elong: 21.6°W
05 21:48 Moon at Apogee: 405342 km
06 06 Earth at Aphelion: 1.01673 AU
07 05:41 Moon at Ascending Node
08 11:38 Mercury 3.7°S of Moon
10 08:17 NEW MOON
12 16:10 Venus 3.3°S of Moon
12 17:10 Mars 3.8°S of Moon
13 07 Mars at Aphelion: 1.66596 AU
13 20 Venus 0.5°N of Mars
17 17:11 FIRST QUARTER MOON
20 19:06 Antares 4.7°S of Moon
20 20:22 Moon at Descending Node
21 17:30 Moon at Perigee: 364520 km
22 04:21 Venus 1.0°N of Regulus
24 08 Mercury at Perihelion
24 09:37 FULL MOON
24 23:42 Saturn 3.8°N of Moon
26 08:17 Jupiter 4.2°N of Moon
28 10 Delta-Aquarid Meteor Shower
29 21:09 Mars 0.6°N of Regulus
31 20:16 LAST QUARTER MOON
Aug 01 21 Mercury at Superior Conjunction
02 12 Saturn at Opposition
02 14:35 Moon at Apogee: 404412 km
03 09:51 Moon at Ascending Node
07 02:42 Pollux 3.1°N of Moon
08 20:50 NEW MOON
10 07:42 Mars 4.3°S of Moon
11 14:00 Venus 4.3°S of Moon
13 02 Perseid Meteor Shower
15 22:20 FIRST QUARTER MOON
16 23:04 Moon at Descending Node
17 01:34 Antares 4.5°S of Moon
17 16:23 Moon at Perigee: 369127 km
19 10 Mercury 0.1°S of Mars
20 06 Jupiter at Opposition
21 05:19 Saturn 3.7°N of Moon
22 11:52 Jupiter 4.0°N of Moon
22 19:02 FULL MOON
30 09:22 Moon at Apogee: 404100 km
30 12:13 Moon at Ascending Node
30 14:13 LAST QUARTER MOON
Sep 03 11:04 Pollux 3.0°N of Moon
05 21:32 Venus 1.4°N of Spica
06 07 Mercury at Aphelion
07 07:52 NEW MOON
10 09:09 Venus 4.1°S of Moon
11 17:05 Moon at Perigee: 368464 km
12 23:35 Moon at Descending Node
13 06:59 Antares 4.2°S of Moon
14 03:39 FIRST QUARTER MOON
14 11 Mercury at Greatest Elong: 26.8°E
14 15 Neptune at Opposition
17 09:37 Saturn 3.8°N of Moon
18 13:50 Jupiter 4.0°N of Moon
21 06:55 FULL MOON
21 09:00 Mercury 1.2°S of Spica
23 02:21 Autumnal Equinox
26 14:33 Moon at Ascending Node
27 04:44 Moon at Apogee: 404641 km
29 08:57 LAST QUARTER MOON
30 19:44 Pollux 2.8°N of Moon
Oct 03 05 Venus at Aphelion
06 18:05 NEW MOON
08 11 Mars in Conjunction with Sun
09 00:28 Moon at Perigee: 363388 km
09 23 Mercury at Inferior Conjunction
10 01:36 Venus 2.9°S of Moon
10 02:35 Moon at Descending Node
10 13:27 Antares 4.0°S of Moon
13 10:25 FIRST QUARTER MOON
14 14:12 Saturn 3.9°N of Moon
15 16:58 Jupiter 4.1°N of Moon
16 20:24 Venus 1.4°N of Antares
20 07 Mercury at Perihelion
20 21:57 FULL MOON
21 18 Orionid Meteor Shower
23 12:45 Pleiades 4.5°N of Moon
23 18:47 Moon at Ascending Node
24 22:30 Moon at Apogee: 405616 km
25 12 Mercury at Greatest Elong: 18.4°W
28 03:40 Pollux 2.6°N of Moon
29 03:05 LAST QUARTER MOON
30 05 Venus at Greatest Elong: 47.0°E
Nov 02 08:18 Mercury 3.7°N of Spica
04 01:40 Mercury 1.2°S of Moon: Occn.
05 04:15 NEW MOON
05 07 Uranus at Opposition
05 19 S Taurid Meteor Shower
06 05:23 Moon at Perigee: 358845 km
06 10:38 Moon at Descending Node
06 22:29 Antares 3.9°S of Moon
08 12:21 Venus 1.1°S of Moon: Occn.
10 21:27 Saturn 4.1°N of Moon
11 19:46 FIRST QUARTER MOON
12 00:13 Jupiter 4.4°N of Moon
12 18 N Taurid Meteor Shower
18 01 Leonid Meteor Shower
19 15:58 FULL MOON
19 16:03 Partial Lunar Eclipse; mag=0.974
19 19:21 Pleiades 4.5°N of Moon
20 00:59 Moon at Ascending Node
21 09:14 Moon at Apogee: 406276 km
24 10:22 Pollux 2.5°N of Moon
27 19:28 LAST QUARTER MOON
29 12 Mercury at Superior Conjunction
Dec 03 07:28 Mars 0.7°S of Moon: Occn.
03 21:58 Moon at Descending Node
04 14:33 Total Solar Eclipse; mag=1.037
04 14:43 NEW MOON
04 17:01 Moon at Perigee: 356794 km
07 07:48 Venus 1.9°N of Moon
08 08:52 Saturn 4.2°N of Moon
09 13:07 Jupiter 4.5°N of Moon
11 08:36 FIRST QUARTER MOON
14 14 Geminid Meteor Shower
17 01:30 Pleiades 4.5°N of Moon
17 07:12 Moon at Ascending Node
18 09:16 Moon at Apogee: 406322 km
19 11:36 FULL MOON
21 16:20 Pollux 2.6°N of Moon
21 22:59 Winter Solstice
22 22 Ursid Meteor Shower
27 09:24 LAST QUARTER MOON
27 16:15 Mars 4.4°N of Antares
29 12 Mercury 4.2°S of Venus
31 08:07 Moon at Descending Node
31 20:54 Antares 3.9°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
2021 Phases of the Moon
Indochina Time
The following table gives the date and time of the Moon's phases for the year . The times listed are for Indochina Time (Coordinated Universal Time + 7 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 | |||
| Indochina Time | |||
| New Moon | First Quarter | Full Moon | Last Quarter |
| - | - | - | Jan 06 16:37 |
| Jan 13 12:00 | Jan 21 04:02 | Jan 29 02:16 | Feb 05 00:37 |
| Feb 12 02:06 | Feb 20 01:47 | Feb 27 15:17 | Mar 06 08:30 |
| Mar 13 17:21 | Mar 21 21:40 | Mar 29 01:48 | Apr 04 17:02 |
| Apr 12 09:31 | Apr 20 13:59 | Apr 27 10:31 | May 04 02:50 |
| May 12 02:00 | May 20 02:13 | May 26 18:14 t | Jun 02 14:24 |
| Jun 10 17:53 A | Jun 18 10:54 | Jun 25 01:40 | Jul 02 04:11 |
| Jul 10 08:17 | Jul 17 17:11 | Jul 24 09:37 | Jul 31 20:16 |
| Aug 08 20:50 | Aug 15 22:20 | Aug 22 19:02 | Aug 30 14:13 |
| Sep 07 07:52 | Sep 14 03:39 | Sep 21 06:55 | Sep 29 08:57 |
| Oct 06 18:05 | Oct 13 10:25 | Oct 20 21:57 | Oct 29 03:05 |
| Nov 05 04:15 | Nov 11 19:46 | Nov 19 15:58 p | Nov 27 19:28 |
| Dec 04 14:43 T | Dec 11 08:36 | Dec 19 11:36 | Dec 27 09:24 |
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
Asia & Oceania
Below are links to sky event almanacs from 2021 to 2030 for ten time zones in Asia & Oceania.
Choose a time zone and click on a year to get a sky event almanac for that year.
| Sky Event Almanacs - Asia & Oceania | |||||||||||||||
| PKT | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| IST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| BST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| ICT | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| AWST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| JST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| ACT | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| AEST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| NCT | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
| NZST | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | |||||
- PKT = Pakistan Standard Time (= UTC + 5 hours)
- IST = Indian Standard Time (= UTC + 5.5 hours)
- BST = Bangladesh Standard Time (= UTC + 6 hours)
- ICT = Indochina Time (= UTC + 7 hours)
- AWST = Australian Western Standard Time (= UTC + 8 hours)
- JST = Japan Standard Time (= UTC + 9 hours)
- ACT = Australian Central Time (= UTC + 9.5 hours)
- AEST = Australian Eastern Standard Time (= UTC + 10 hours)
- NCT = New Caledonia Time (= UTC + 11 hours)
- NZST = New Zealand Standard Time (= UTC + 12 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)