Sky Event Almanac 2021 ( eastern standard time )

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2021
Sky Event Almanac
Eastern Standard Time
The following table gives the date and time of the important astronomical events for the year. The times listed are for Eastern Standard
Time
(Coordinated Universal Time − 5 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
January - June July - December
Date EST Event

(h:m)

Jan 02 09 Earth at Perihelion: 0.98325 AU

02 16:58 Regulus 4.7°S of Moon

03 10 Quadrantid Meteor Shower

06 04:37 LAST QUARTER MOON

09 10:39 Moon at Perigee: 367390 km

10 15:14 Moon at Descending Node

11 15:12 Venus 1.5°N of Moon

13 00:00 NEW MOON

14 03:15 Mercury 2.3°N of Moon

20 16:02 FIRST QUARTER MOON

21 08:11 Moon at Apogee: 404361 km

23 21 Mercury at Greatest Elong: 18.6°E

23 21 Saturn in Conjunction with Sun

24 16:47 Moon at Ascending Node

27 10:46 Pollux 3.8°N of Moon

28 14:16 FULL MOON

28 20 Jupiter in Conjunction with Sun

28 21 Mercury at Perihelion


Feb 03 14:33 Moon at Perigee: 370127 km



08 09 Mercury at Inferior Conjunction

10 06:16 Saturn 3.4°N of Moon

11 14:06 NEW MOON


18 17:47 Mars 3.7°N of Moon


20 00 Venus at Aphelion


23 03 Mercury 4.0°N of Saturn



27 03:17 FULL MOON

Mar 02 00:19 Moon at Perigee: 365422 km

03 18:36 Mars 2.6°S of Pleiades

05 00 Mercury 0.3°N of Jupiter



06 06 Mercury at Greatest Elong: 27.3°W


10 10:35 Jupiter 4.0°N of Moon

10 19 Neptune in Conjunction with Sun


13 05:21 NEW MOON

13 21 Mercury at Aphelion


19 12:48 Mars 1.9°N of Moon

Date EST Event

(h:m)

Jul 01 16:11 LAST QUARTER MOON



05 18 Earth at Aphelion: 1.01673 AU


07 23:38 Mercury 3.7°S of Moon

09 20:17 NEW MOON

12 04:10 Venus 3.3°S of Moon

12 05:10 Mars 3.8°S of Moon

12 19 Mars at Aphelion: 1.66596 AU

13 08 Venus 0.5°N of Mars


20 07:06 Antares 4.7°S of Moon



21 16:21 Venus 1.0°N of Regulus


23 21:37 FULL MOON



27 22 Delta-Aquarid Meteor Shower

29 09:09 Mars 0.6°N of Regulus


Aug 01 09 Mercury at Superior Conjunction

02 00 Saturn at Opposition




08 08:50 NEW MOON



12 14 Perseid Meteor Shower





18 22 Mercury 0.1°S of Mars

19 18 Jupiter at Opposition



22 07:02 FULL MOON




Sep 02 23:04 Pollux 3.0°N of Moon

05 09:32 Venus 1.4°N of Spica

05 19 Mercury at Aphelion

06 19:52 NEW MOON

2021
Sky Event Almanac

20 04:37 Vernal Equinox




26 01 Venus at Superior Conjunction

28 13:48 FULL MOON


Apr 01 15:49 Antares 4.9°S of Moon





11 21:31 NEW MOON



17 07:09 Mars 0.1°N of Moon: Occn.

18 21 Mercury at Superior Conjunction



22 07 Lyrid Meteor Shower


26 22:31 FULL MOON




30 16 Uranus in Conjunction with Sun

May 03 12:02 Saturn 4.2°N of Moon


03 22:03 Mercury 2.1°S of Pleiades


04 20 Eta-Aquarid Meteor Shower

11 14:00 NEW MOON









26 06:14 FULL MOON

26 06:19 Total Lunar Eclipse; mag=1.009



28 22 Mercury 0.4°S of Venus


Jun 01 03:57 Jupiter 4.6°N of Moon




10 05:42 Annular Solar Eclipse; mag=0.943

10 05:53 NEW MOON



12 08 Venus at Perihelion




20 22:32 Summer Solstice




24 13:40 FULL MOON









14 03 Neptune at Opposition



20 18:55 FULL MOON

20 21:00 Mercury 1.2°S of Spica

22 14:21 Autumnal Equinox





Oct 02 17 Venus at Aphelion

06 06:05 NEW MOON

07 23 Mars in Conjunction with Sun









16 08:24 Venus 1.4°N of Antares


20 09:57 FULL MOON

21 06 Orionid Meteor Shower

23 00:45 Pleiades 4.5°N of Moon






29 17 Venus at Greatest Elong: 47.0°E

Nov 01 20:18 Mercury 3.7°N of Spica

03 13:40 Mercury 1.2°S of Moon: Occn.

04 16:15 NEW MOON

04 19 Uranus at Opposition

05 07 S Taurid Meteor Shower




08 00:21 Venus 1.1°S of Moon: Occn.




12 06 N Taurid Meteor Shower

17 13 Leonid Meteor Shower

19 03:58 FULL MOON

19 04:03 Partial Lunar Eclipse; mag=0.974






29 00 Mercury at Superior Conjunction

Dec 02 19:28 Mars 0.7°S of Moon: Occn.


04 02:33 Total Solar Eclipse; mag=1.037

04 02:43 NEW MOON


06 19:48 Venus 1.9°N of Moon




14 02 Geminid Meteor Shower


2021
Sky Event Almanac


18 23:36 FULL MOON


21 10:59 Winter Solstice

22 10 Ursid Meteor Shower


27 04:15 Mars 4.4°N of Antares

29 00 Mercury 4.2°S of Venus



31 15:13 Mars 1.0°N of Moon: Occn.

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
The following table gives the date and time of the Moon's phases for the year. The times listed are for Eastern Standard Time
(Coordinated
Universal Time − 5 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
New Moon First Quarter Full Moon Last Quarter
- - - Jan 06 04:37
Jan 13 00:00 Jan 20 16:02 Jan 28 14:16 Feb 04 12:37
Feb 11 14:06 Feb 19 13:47 Feb 27 03:17 Mar 05 20:30
Mar 13 05:21 Mar 21 09:40 Mar 28 13:48 Apr 04 05:02
Apr 11 21:31 Apr 20 01:59 Apr 26 22:31 May 03 14:50
May 11 14:00 May 19 14:13 May 26 06:14 t Jun 02 02:24
Jun 10 05:53 A Jun 17 22:54 Jun 24 13:40 Jul 01 16:11
Jul 09 20:17 Jul 17 05:11 Jul 23 21:37 Jul 31 08:16
Aug 08 08:50 Aug 15 10:20 Aug 22 07:02 Aug 30 02:13
Sep 06 19:52 Sep 13 15:39 Sep 20 18:55 Sep 28 20:57
Oct 06 06:05 Oct 12 22:25 Oct 20 09:57 Oct 28 15:05

2021 Phases of the Moon
New Moon First Quarter Full Moon Last Quarter
Nov 04 16:15 Nov 11 07:46 Nov 19 03:58 p Nov 27 07:28
Dec 04 02:43 T Dec 10 20:36 Dec 18 23:36 Dec 26 21:24
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
Time Zones Abbreviations
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)
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)
| Home |
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All photographs text and web pages are © Copyright 1970 - 2021 by Fred Espenak unless otherwise noted. All rights reserved.
Last Updated: 2021 Jan 26

Sky Event Almanac 2021 ( eastern standard time )

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