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Positional Astronomy Centre, Kolkata
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ECLIPSE EVENTS OF 2021

 In the year 2021, there are two eclipses of the Sun and two eclipse of the Moon.

 

1. June 10 ……………………. Annular eclipse of the Sun

2. December 4 …………………….  Total eclipse of the Sun

3. May 26 …………………….  Total eclipse of the Moon

4. November 19 …………………….  Partial eclipse of the Moon

 

 

1. Annular Eclipse of the Sun; 20 Jyaishtha, 1943 SE; June 10, 2021; Thursday


The eclipse is not visible in India.

 

Area of Visibility 

The eclipse is visible in the region covering north eastern North America, Europe, northern Asia and the North Atlantic Ocean.

 

 CIRCUMSTANCES  OF  THE  ECLIPSE

 

 

 

Universal

Time

Indian

 Standard Time

 

d

  h

m

d

 h

 m

Eclipse begins

10

08

12.5

10

13

42.5

Central eclipse begins

10

09

55.0

10

15

25.0

Greatest eclipse*

10

10

41.9

10

16

11.9

Central eclipse ends

10

11

28.7

10

16

58.7

Eclipse ends

10

13

11.2

10

18

41.2

 

*Magnitude of the eclipse = 0.943, Maximum duration of Annular phase =3 m 48s

 


 2- Total Eclipse of the Sun; 13 Agrahayana, 1943 S.E.; December 4, 2021, Saturday         


Not visible in India


Area of Visibility 

The eclipse is visible in the region covering Antarctica, extreme South Africa, extreme South Australia, the South Atlantic Ocean and the south Indian Ocean.


  CIRCUMSTANCES  OF  THE  ECLIPSE

 

 

 

Universal

Time

Indian

 Standard Time

 

d

  h

m

d

   h

   m

Eclipse begins

   4

  05

  29.4

   4

10

59

Central eclipse begins

   4

07

02.9

   4

12

33

Greatest eclipse*

   4

07

33.5

   4

13

04

Central eclipse ends

   4

08

03.8

   4

13

34

Eclipse ends

   4

09

37.4

   4

15

07

 

*Magnitude of the eclipse = 1.036, Maximum duration of totality = 1 m 57s 


 

3- Total Eclipse of the Moon; 5 Jyaishtha, 1943 SE; May 26, 2021; Wednesday

                                                                                     

                                                                                                 The eclipse is visible in India                                                                                                                  

Area of Visibility 

Eclipse will be visible in the region covering South America, North America, Asia, Australia, Antarctica, the Pacific Ocean and the Indian Ocean. 

The places from where the beginning of the umbral phase is visible at the time of moonset are western parts of Brazil, eastern parts of USA and Canada. 

The places from where the ending of the umbral phase is visible at the time of moonrise are the Indian Ocean, Sri Lanka, north eastern parts of India, China, Mongolia and Russia. 

In India, just after moonrise, ending of partial phase of the eclipse will be visible for a short span of time from north eastern parts of India except Sikkim, some parts of West Bengal and some costal parts of Odisha. 

 CIRCUMSTANCES  OF  THE  ECLIPSE

 

 

Universal

Time

Indian

 Standard Time

 

d

  h

m

d

 h

 m

Moon enters penumbra

26

08

46.1

26

14

16.1

Moon enters umbra

26

09

44.6

26

15

14.6

Moon enters Totality

26

11

09.4

26

16

39.4

Middle of the eclipse*

26

11

18.7

26

16

48.7

Moon leaves Totality

26

11

28.0

26

16

58.0

Moon leaves umbra

26

12

52.8

26

18

22.8 

Moon leaves penumbra

26

13

51.3

26

19

21.3 

 

 * Magnitude of the eclipse =1.016 (Moon’s diam =1.0). Distance between the centers at middle 1756’’.4

Radius of shadow cone at Moon’s distance: Penumbra 4722”.6, Umbra 2790’’.2


PHASES OF ECLIPSE VISIBLE FROM CERTAIN PLACES OF INDIA


 

                                                                                                                                                                                                                    

4- Partial Eclipse of the Moon;  28 Kartika, 1943 SE; November 19, 2021; Friday


The eclipse is visible in India


Area of Visibility  

The Eclipse will be visible in the region covering western Africa, western Europe, North America, South America, Asia, Australasia, the Atlantic Ocean and the Pacific Ocean.

The places from where the beginning of the umbral phase is visible at the time of moonset are South America, North Atlantic Ocean and United Kingdom,

The places from where the ending of the umbral phase is visible at the time of moonrise are  Australia, Indonesia, Thailand, extreme north eastern parts of India, China and Russia.

In India, just after moonrise, ending of partial phase of the eclipse will be visible for a very short span of time from extreme north eastern parts Arunachal Pradesh and Assam.


 CIRCUMSTANCES  OF  THE  ECLIPSE

 

 

Universal

Time

Indian

 Standard Time

 

d

 h

m

d

 h

 m

Moon enters penumbra

19

06

00.2

19

11

30.2

Moon enters umbra

19

07

18.3

19

12

48.3

Middle of the eclipse*

19

09

02.9

19

14

32.9

Moon leaves umbra

19

10 

47.4 

19 

16 

17.4 

Moon leaves penumbra 19 12  05.5  19  17  35.5 

* Magnitude of the eclipse =0.979 (Moon’s diam =1.0). Distance between the centers at middle 1477''.0

Radius of shadow cone at Moon’s distance: Penumbra 4304".7, Umbra 2323''.7