2021 Sky Event Almanac

Indian Standard Time

The following table gives the date and time of the important astronomical events for the year . The times listed are for Indian Standard Time (Coordinated Universal Time + 5.5 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
Indian Standard Time
January - June July - December
Date     IST   Event
        (h:m)

Jan 02  19     Earth at Perihelion: 0.98325 AU
    03  03:28  Regulus 4.7°S of Moon
    03  20     Quadrantid Meteor Shower
    06  15:07  LAST QUARTER MOON 
    09  21:09  Moon at Perigee: 367390 km
    11  01:44  Moon at Descending Node 
    12  01:42  Venus 1.5°N of Moon
    13  10:30  NEW MOON 
    14  13:45  Mercury 2.3°N of Moon
    21  02:32  FIRST QUARTER MOON 
    21  18:41  Moon at Apogee: 404361 km
    24  07     Mercury at Greatest Elong: 18.6°E
    24  08     Saturn in Conjunction with Sun 
    25  03:17  Moon at Ascending Node 
    27  21:16  Pollux 3.8°N of Moon
    29  00:46  FULL MOON 
    29  06     Jupiter in Conjunction with Sun 
    29  07     Mercury at Perihelion 
    30  10:26  Regulus 4.6°S of Moon

Feb 04  01:03  Moon at Perigee: 370127 km
    04  23:07  LAST QUARTER MOON 
    07  05:59  Moon at Descending Node 
    08  19     Mercury at Inferior Conjunction 
    10  16:46  Saturn 3.4°N of Moon
    12  00:36  NEW MOON 
    18  15:52  Moon at Apogee: 404467 km
    19  04:17  Mars 3.7°N of Moon
    20  00:17  FIRST QUARTER MOON 
    20  10     Venus at Aphelion 
    21  07:14  Moon at Ascending Node 
    23  13     Mercury 4.0°N of Saturn
    24  06:40  Pollux 3.7°N of Moon
    26  19:34  Regulus 4.6°S of Moon
    27  13:47  FULL MOON 

Mar 02  10:49  Moon at Perigee: 365422 km
    04  05:06  Mars 2.6°S of Pleiades
    05  11     Mercury 0.3°N of Jupiter
    06  06:26  Moon at Descending Node 
    06  07:00  LAST QUARTER MOON 
    06  16     Mercury at Greatest Elong: 27.3°W
    10  04:32  Saturn 3.7°N of Moon
    10  21:05  Jupiter 4.0°N of Moon
    11  05     Neptune in Conjunction with Sun 
    11  06:32  Mercury 3.7°N of Moon
    13  15:51  NEW MOON 
    14  07     Mercury at Aphelion 
    18  10:34  Moon at Apogee: 405253 km
    19  23:18  Mars 1.9°N of Moon
    20  09:01  Moon at Ascending Node 
    20  15:07  Vernal Equinox 
    21  20:10  FIRST QUARTER MOON 
    23  15:56  Pollux 3.5°N of Moon
    26  05:47  Regulus 4.7°S of Moon
    26  12     Venus at Superior Conjunction 
    29  00:18  FULL MOON 
    30  11:42  Moon at Perigee: 360311 km

Apr 02  02:19  Antares 4.9°S of Moon
    02  08:11  Moon at Descending Node 
    04  15:32  LAST QUARTER MOON 
    06  14:04  Saturn 4.0°N of Moon
    07  12:45  Jupiter 4.4°N of Moon
    12  08:01  NEW MOON 
    14  23:17  Moon at Apogee: 406120 km
    16  11:23  Moon at Ascending Node 
    17  17:39  Mars 0.1°N of Moon: Occn.
    19  07     Mercury at Superior Conjunction 
    19  23:48  Pollux 3.2°N of Moon
    20  12:29  FIRST QUARTER MOON 
    22  18     Lyrid Meteor Shower
    27  06     Mercury at Perihelion 
    27  09:01  FULL MOON 
    27  20:54  Moon at Perigee: 357379 km
    29  11:37  Antares 4.8°S of Moon
    29  14:47  Moon at Descending Node 

May 01  03     Uranus in Conjunction with Sun 
    03  22:32  Saturn 4.2°N of Moon
    04  01:20  LAST QUARTER MOON 
    04  08:33  Mercury 2.1°S of Pleiades
    05  02:30  Jupiter 4.6°N of Moon
    05  07     Eta-Aquarid Meteor Shower
    12  00:30  NEW MOON 
    12  03:24  Moon at Apogee: 406512 km
    13  15:59  Moon at Ascending Node 
    13  23:29  Mercury 2.1°N of Moon
    16  10:17  Mars 1.5°S of Moon
    17  06:09  Pollux 3.1°N of Moon
    17  11     Mercury at Greatest Elong: 22.0°E
    20  00:43  FIRST QUARTER MOON 
    26  07:22  Moon at Perigee: 357310 km
    26  16:44  FULL MOON 
    26  16:49  Total Lunar Eclipse; mag=1.009
    26  22:25  Antares 4.8°S of Moon
    27  01:08  Moon at Descending Node 
    29  09     Mercury 0.4°S of Venus
    31  06:52  Saturn 4.2°N of Moon

Jun 01  14:27  Jupiter 4.6°N of Moon
    02  12:54  LAST QUARTER MOON 
    08  07:57  Moon at Apogee: 406230 km
    09  22:12  Moon at Ascending Node 
    10  16:12  Annular Solar Eclipse; mag=0.943
    10  16:23  NEW MOON 
    11  07     Mercury at Inferior Conjunction 
    12  12:14  Venus 1.5°S of Moon
    12  18     Venus at Perihelion 
    13  11:49  Pollux 3.1°N of Moon
    14  01:22  Mars 2.8°S of Moon
    18  09:24  FIRST QUARTER MOON 
    21  09:02  Summer Solstice 
    23  08:56  Antares 4.8°S of Moon
    23  11:37  Moon at Descending Node 
    23  15:28  Moon at Perigee: 359960 km
    25  00:10  FULL MOON 
    27  15:00  Saturn 4.0°N of Moon
    29  00:08  Jupiter 4.5°N of Moon

Date     IST   Event
        (h:m)

Jul 02  02:41  LAST QUARTER MOON 
    05  01     Mercury at Greatest Elong: 21.6°W
    05  20:18  Moon at Apogee: 405342 km
    06  04     Earth at Aphelion: 1.01673 AU
    07  04:11  Moon at Ascending Node 
    08  10:08  Mercury 3.7°S of Moon
    10  06:47  NEW MOON 
    12  14:40  Venus 3.3°S of Moon
    12  15:40  Mars 3.8°S of Moon
    13  05     Mars at Aphelion:  1.66596 AU
    13  19     Venus 0.5°N of Mars
    17  15:41  FIRST QUARTER MOON 
    20  17:36  Antares 4.7°S of Moon
    20  18:52  Moon at Descending Node 
    21  16:00  Moon at Perigee: 364520 km
    22  02:51  Venus 1.0°N of Regulus
    24  06     Mercury at Perihelion 
    24  08:07  FULL MOON 
    24  22:12  Saturn 3.8°N of Moon
    26  06:47  Jupiter 4.2°N of Moon
    28  09     Delta-Aquarid Meteor Shower
    29  19:39  Mars 0.6°N of Regulus
    31  18:46  LAST QUARTER MOON 

Aug 01  19     Mercury at Superior Conjunction 
    02  11     Saturn at Opposition 
    02  13:05  Moon at Apogee: 404412 km
    03  08:21  Moon at Ascending Node 
    07  01:12  Pollux 3.1°N of Moon
    08  19:20  NEW MOON 
    10  06:12  Mars 4.3°S of Moon
    11  12:30  Venus 4.3°S of Moon
    13  01     Perseid Meteor Shower
    15  20:50  FIRST QUARTER MOON 
    16  21:34  Moon at Descending Node 
    17  00:04  Antares 4.5°S of Moon
    17  14:53  Moon at Perigee: 369127 km
    19  09     Mercury 0.1°S of Mars
    20  05     Jupiter at Opposition 
    21  03:49  Saturn 3.7°N of Moon
    22  10:22  Jupiter 4.0°N of Moon
    22  17:32  FULL MOON 
    30  07:52  Moon at Apogee: 404100 km
    30  10:43  Moon at Ascending Node 
    30  12:43  LAST QUARTER MOON 

Sep 03  09:34  Pollux 3.0°N of Moon
    05  20:02  Venus 1.4°N of Spica
    06  05     Mercury at Aphelion 
    07  06:22  NEW MOON 
    10  07:39  Venus 4.1°S of Moon
    11  15:35  Moon at Perigee: 368464 km
    12  22:05  Moon at Descending Node 
    13  05:29  Antares 4.2°S of Moon
    14  02:09  FIRST QUARTER MOON 
    14  09     Mercury at Greatest Elong: 26.8°E
    14  14     Neptune at Opposition 
    17  08:07  Saturn 3.8°N of Moon
    18  12:20  Jupiter 4.0°N of Moon
    21  05:25  FULL MOON 
    21  07:30  Mercury 1.2°S of Spica
    23  00:51  Autumnal Equinox 
    26  13:03  Moon at Ascending Node 
    27  03:14  Moon at Apogee: 404641 km
    29  07:27  LAST QUARTER MOON 
    30  18:14  Pollux 2.8°N of Moon

Oct 03  03     Venus at Aphelion 
    06  16:35  NEW MOON 
    08  09     Mars in Conjunction with Sun 
    08  22:58  Moon at Perigee: 363388 km
    09  22     Mercury at Inferior Conjunction 
    10  00:06  Venus 2.9°S of Moon
    10  01:05  Moon at Descending Node 
    10  11:57  Antares 4.0°S of Moon
    13  08:55  FIRST QUARTER MOON 
    14  12:42  Saturn 3.9°N of Moon
    15  15:28  Jupiter 4.1°N of Moon
    16  18:54  Venus 1.4°N of Antares
    20  05     Mercury at Perihelion 
    20  20:27  FULL MOON 
    21  17     Orionid Meteor Shower
    23  11:15  Pleiades 4.5°N of Moon
    23  17:17  Moon at Ascending Node 
    24  21:00  Moon at Apogee: 405616 km
    25  10     Mercury at Greatest Elong: 18.4°W
    28  02:10  Pollux 2.6°N of Moon
    29  01:35  LAST QUARTER MOON 
    30  03     Venus at Greatest Elong: 47.0°E

Nov 02  06:48  Mercury 3.7°N of Spica
    04  00:10  Mercury 1.2°S of Moon: Occn.
    05  02:45  NEW MOON 
    05  06     Uranus at Opposition 
    05  17     S Taurid Meteor Shower
    06  03:53  Moon at Perigee: 358845 km
    06  09:08  Moon at Descending Node 
    06  20:59  Antares 3.9°S of Moon
    08  10:51  Venus 1.1°S of Moon: Occn.
    10  19:57  Saturn 4.1°N of Moon
    11  18:16  FIRST QUARTER MOON 
    11  22:43  Jupiter 4.4°N of Moon
    12  17     N Taurid Meteor Shower
    17  23     Leonid Meteor Shower
    19  14:28  FULL MOON 
    19  14:33  Partial Lunar Eclipse; mag=0.974
    19  17:51  Pleiades 4.5°N of Moon
    19  23:29  Moon at Ascending Node 
    21  07:44  Moon at Apogee: 406276 km
    24  08:52  Pollux 2.5°N of Moon
    27  17:58  LAST QUARTER MOON 
    29  10     Mercury at Superior Conjunction 

Dec 03  05:58  Mars 0.7°S of Moon: Occn.
    03  20:28  Moon at Descending Node 
    04  13:03  Total Solar Eclipse; mag=1.037
    04  13:13  NEW MOON 
    04  15:31  Moon at Perigee: 356794 km
    07  06:18  Venus 1.9°N of Moon
    08  07:22  Saturn 4.2°N of Moon
    09  11:37  Jupiter 4.5°N of Moon
    11  07:06  FIRST QUARTER MOON 
    14  12     Geminid Meteor Shower
    17  00:00  Pleiades 4.5°N of Moon
    17  05:42  Moon at Ascending Node 
    18  07:46  Moon at Apogee: 406322 km
    19  10:06  FULL MOON 
    21  14:50  Pollux 2.6°N of Moon
    21  21:29  Winter Solstice 
    22  21     Ursid Meteor Shower
    27  07:54  LAST QUARTER MOON 
    27  14:45  Mars 4.4°N of Antares
    29  10     Mercury 4.2°S of Venus
    31  06:37  Moon at Descending Node 
    31  19:24  Antares 3.9°S of Moon

    

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

Indian Standard Time

The following table gives the date and time of the Moon's phases for the year . The times listed are for Indian Standard Time (Coordinated Universal Time + 5.5 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
Indian Standard Time
New Moon First Quarter Full Moon Last Quarter
--- Jan 06 15:07
Jan 13 10:30 Jan 21 02:32 Jan 29 00:46 Feb 04 23:07
Feb 12 00:36 Feb 20 00:17 Feb 27 13:47 Mar 06 07:00
Mar 13 15:51 Mar 21 20:10 Mar 29 00:18 Apr 04 15:32
Apr 12 08:01 Apr 20 12:29 Apr 27 09:01 May 04 01:20
May 12 00:30 May 20 00:43 May 26 16:44 t Jun 02 12:54
Jun 10 16:23 A Jun 18 09:24 Jun 25 00:10 Jul 02 02:41
Jul 10 06:47 Jul 17 15:41 Jul 24 08:07 Jul 31 18:46
Aug 08 19:20 Aug 15 20:50 Aug 22 17:32 Aug 30 12:43
Sep 07 06:22 Sep 14 02:09 Sep 21 05:25 Sep 29 07:27
Oct 06 16:35 Oct 13 08:55 Oct 20 20:27 Oct 29 01:35
Nov 05 02:45 Nov 11 18:16 Nov 19 14:28 p Nov 27 17:58
Dec 04 13:13 T Dec 11 07:06 Dec 19 10:06 Dec 27 07:54

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

        Time Zones Abbreviations
        • 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)

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

book


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)