IndiaMinistry of Earth Science

Annular Eclipse of the Sun- 21 June, 2020, Sunday- 31 Jyaishtha, 1942 Saka Era- (Annular Phase is visible in India)

An annular solar eclipse will occur on 21 June, 2020 (31 Jyaishtha, 1942 Saka Era). From India annular phase will be visible in the morning from some places within a narrow corridor of northern part of the country (parts of Rajasthan, Haryana and Uttarakhand) and it will be seen as partial solar eclipse from the rest part of the country. Few prominent places within this narrow annularity path are Dehradun, Kurukshetra, Chamoli, Joshimath, Sirsa, Suratgarh etc. In India, the obscuration of the Sun by the Moon at the time of greatest phase of the annular eclipse will be nearly 98.6%.  Obscuration of the Sun by the Moon at the time of greatest phase of partial eclipse will be around 94 percent in Delhi, 80 percent in Guwahati, 78 percent in Patna, 75 percent in Silchar, 66 percent in Kolkata, 62 percent in Mumbai, 37 percent in Bangalore, 34 percent in Chennai, 28 percent in Port Blair etc.

Considering the Earth as a whole the partial phase of the eclipse will begin at 9 h 16 m IST. The annular phase will begin at 10 h 19 m IST. The annular phase will end at 14 h 02 m IST. The partial phase will end at 15h 04 m IST.

The annular path passes through Congo, Sudan, Ethiopia, Yemen, Saudi Arabia, Oman, Pakistan, northern parts of India and China. The Moon’s penumbral shadow produces a partial eclipse, visible in the region covering Africa (except W. and S. parts) S. E. Europe, Asia (except N. and E. Russia) and northern parts of Australia.

A solar eclipse occurs on a new moon day when the Moon comes in between the Earth and the Sun and when all the three objects are aligned. An annular solar eclipse will occur when the angular diameter of the Moon falls short of that of the Sun so that it cannot cover up the latter completely. As a result a ring of the Sun’s disk remains visible around the Moon.

Eclipsed Sun should not be viewed with the naked eye, even for a very short time. It will cause permanent damage of the eyes leading to blindness even when the moon covers most portion of the Sun. Safe technique to observe the solar eclipse is either by using proper filter like aluminized Mylar, black polymer, welding glass of shade number 14 or by making projection of Sun’s image on a white board by telescope. 

A table relating to local circumstances of some places in India is appended separately for ready reference.

 

THE ANNULAR ECLIPSE OF THE SUN, 21 JUNE, 2020

PHASES OF ECLIPSE VISIBLE FROM CERTAIN PLACES OF INDIA

Places Partial

Eclipse

Begins

(IST)

Annular

phase

Begins

(IST)

Greatest

Eclipse

(IST)

Magni-

tude

Max-imum.

Obscu-ration

Annular

phase

Ends

(IST)

Partial

Eclipse

Ends

(IST)

Dura-tion

of

Eclipse

  h   m  h    m      h   m       h   m h    m h   m
Agartala 10   56.0 –   – 12   45.1 0.771 71.1% –   – 14   23.6 3   28
Ahmedabad 10   04.0 –   – 11   42.2 0.823 77.4% –   – 13   32.2 3   28
Aizawl 11   00.9 –   – 12   49.8 0.770 70.9% –   – 14   26.7 3   26
Allahabad 10   27.6 –   – 12   13.6 0.831 78.4% –   – 14   00.6 3   33
Amritsar 10   20.0 –   – 11   57.7 0.935 91.5% –   – 13   41.6 3   22
Bangalore 10   13.2 –   – 11   47.6 0.473 36.5% –   – 13   31.5 3   18
Bhagalpur 10   42.4 –   – 12   30.9 0.811 76.0% –   – 14   13.8 3   31
Bhopal 10   14.7 –   – 11   57.4 0.789 73.2% –   – 13   47.0 3   32
Bhubaneswar 10   38.3 –   – 12   26.1 0.655 57.0% –   – 14   09.7 3   31
*Chamoli 10   27.1 12   08.7 12   09.1 0.997 98.6% 12   09.4 13   53.7 3   27
Chandigarh 10   24.4 –   – 12   04.5 0.965 95.4% –   – 13   48.7 3   24
Chennai 10   22.0 –   – 11   58.5 0.453 34.4% –   – 13   40.8 3   19
Cochin 10   11.0 –   – 11   38.9 0.396 28.4% –   – 13   17.7 3   07
Cooch Behar 10   50.5 –   – 12   39.0 0.846 80.3% –   – 14   19.2 3   29
Darjeeling 10   47.2 –   – 12   35.2 0.868 83.1% –   – 14   16.3 3   29
*Dehradun 10   24.2 12   05.0 12   05.3 0.996 98.6% 12   05.6 13   50.4 3   26
Delhi 10   20.1 –   – 12   01.6 0.952 93.7% –   – 13   48.4 3   28
Dibrugarh 11   07.9 –   – 12   54.7 0.896 86.5% –   – 14   29.1 3   21
Dwarka 9   56.6 –   – 11   31.1 0.840 79.5% –   – 13   20.1 3   24
Gandhinagar 10   04.3 –   – 11   42.6 0.827 77.9% –   – 13   32.6 3   28
Gangtok 10   48.3 –   – 12   36.2 0.877 84.2% –   – 14   17.0 3   28
Gaya 10   36.2 –   – 12   24.2 0.799 74.4% –   – 14   08.9 3   33
Guwahati 10   57.0 –   – 12   45.5 0.842 79.8% –   – 14   23.6 3   27
Haridwar 10   24.9 –   – 12   06.0 0.990 98.6% –   – 13   50.8 3   26
Hazaribagh 10   37.2 –   – 12   25.4 0.774 71.4% –   – 14   09.9 3   33
Hyderabad 10   15.0 –   – 11   55.8 0.602 50.8% –   – 13   43.9 3   29
Imphal 11   04.6 –   – 12   53.0 0.804 75.0% –   – 14   28.7 3   24
Itanagar 11   03.5 –   – 12   51.1 0.879 84.4% –   – 14   26.9 3   23
Jaipur 10   14.8 –   – 11   55.8 0.908 88.1% –   – 13   44.2 3   29
Jalandhar 10   22.7 –   – 12   01.0 0.931 91.0% –   – 13   44.5 3   22
Jammu 10   21.7 –   – 11   58.5 0.904 87.5% –   – 13   41.2 3   20
*Joshimath 10   27.8 12   09.5 12   09.8 0.997 98.6% 12   10.2 13   54.3 3   27
Kannur 10   06.7 –   – 11   37.5 0.461 35.2% –   – 13   20.4 3   14
Kanyakumari 10   17.7 –   – 11   41.9 0.329 21.9% –   – 13   15.3 2   58
Kavalur 10   19.2 –   – 11   55.1 0.458 34.9% –   – 13   37.9 3   19
Kavaratti 10   00.3 –   – 11   28.0 0.460 35.1% –   – 13   09.7 3   09

 

‘ –   – ‘ indicates annular phase of  eclipse is not visible corresponding to the places where only partial eclipse occurs

‘*’ Places where annular phase of eclipse occurs

THE ANNULAR ECLIPSE OF THE SUN, 21 JUNE, 2020

PHASES OF ECLIPSE VISIBLE FROM CERTAIN PLACES OF INDIA

 

Places Partial

Eclipse

Begins

(IST)

Annular

phase

Begins

(IST)

Greatest

Eclipse

(IST)

Magni-

tude

Max-imum.

Obscu-ration

Annular

phase

Ends

(IST)

Partial

Eclipse

Ends

(IST)

Dura-tion

of

Eclipse

  h   m  h    m      h   m       h   m h    m h   m
Kohima 11   05.3 –   – 12   53.3 0.835 78.9% –   – 14   28.8 3   23
Kolkata 10   46.4 –   – 12   35.5 0.725 65.5% –   – 14   17.0 3   31
Kozikode 10   08.4 –   – 11   38.5 0.439 32.9% –   – 13   20.2 3   12
*Kurukshetra 10   21.3 12   01.4 12   01.8 0.997 98.6% 12   02.1 13   47.4 3   26
Lucknow 10   26.8 –   – 12   11.8 0.879 84.4% –   – 13   58.5 3   32
Madurai 10   17.6 –   – 11   46.5 0.377 26.6% –   – 13   24.3 3   07
Mangalore 10   04.9 –   – 11   37.1 0.498 39.1% –   – 13   21.8 3   17
Mount Abu 10   05.9 –   – 11   44.3 0.868 83.0% –   – 13   33.8 3   28
Mumbai 10   00.9 –   – 11   37.5 0.697 62.1% –   – 13   27.5 3   27
Mysore 10   10.7 –   – 11   43.4 0.461 35.2% –   – 13   26.5 3   16
Nagpur 10   17.9 –   – 12   01.6 0.711 63.7% –   – 13   50.7 3   33
Nasik 10   03.8 –   – 11   42.0 0.720 64.8% –   – 13   32.3 3   29
Panaji 10   03.3 –   – 11   38.8 0.589 49.3% –   – 13   26.9 3   24
Patna 10   37.1 –   – 12   24.9 0.825 77.7% –   – 14   09.3 3   32
Pondicherry 10   21.7 –   – 11   56.0 0.423 31.2% –   – 13   36.7 3   15
Port Blair 11   15.6 –   – 12   53.4 0.393 28.1% –   – 14   18.8 3   03
Pune 10   03.0 –   – 11   40.5 0.675 59.5% –   – 13   30.3 3   27
Puri 10   38.3 –   – 12   26.0 0.641 55.4% –   – 14   09.3 3   31
Raipur 10   25.1 –   – 12   10.9 0.699 62.3% –   – 13   58.4 3   33
Rajkot 9   59.6 –   – 11   35.8 0.819 77.0% –   – 13   25.5 3   26
Ranchi 10   36.8 –   – 12   25.0 0.753 68.8% –   – 14   09.6 3   33
Sambalpur 10   32.2 –   – 12   19.6 0.697 62.1% –   – 14   05.3 3   33
Shillong 10   58.0 –   – 12   46.6 0.826 77.8% –   – 14   24.5 3   27
Shimla 10   23.5 –   – 12   03.4 0.967 95.6% –   – 13   47.9 3   24
Silchar 11   01.0 –   – 12   49.7 0.803 74.9% –   – 14   26.6 3   26
Siliguri 10   47.3 –   – 12   35.5 0.856 81.6% –   – 14   16.7 3   29
*Sirsa 10   16.9 11   55.9 11   56.1 0.996 98.6% 11   56.6 13   42.3 3   25
Srinagar 10   24.2 –   – 11   59.7 0.861 82.2% –   – 13   40.6 3   16
*Suratgarh 10   14.5 11   52.5 11   52.9 0.998 98.6% 11   53.3 13   39.2 3   25
Thiruvanantapuram 10   15.1 –   – 11   40.0 0.346 23.5% –   – 13   14.9 3   00
Udaipur 10   07.8 –   – 11   47.2 0.858 81.8% –   – 13   36.8 3   29
Ujjain 10   10.9 –   – 11   52.1 0.798 74.3% –   – 13   42.2 3   31
Vadodara 10   04.6 –   – 11   43.2 0.795 73.9% –   – 13   33.5 3   29
Varanasi 10   31.0 –   – 12   17.8 0.821 77.2% –   – 14   04.0 3   33

 

‘ –   – ‘ indicates annular phase of  eclipse is not visible corresponding to the places where only partial eclipse occurs

‘*’ Places where annular phase of eclipse occurs

ANNULAR SOLAR ECLIPSE, 21  JUNE,  2020

LOCAL CIRCUMSTANCES RELATING TO SOME OF THE PLACES FROM WHERE ANNULAR PHASE IS VISIBLE

Places Annular

phase

Begins

(IST)

Greatest

Eclipse

(IST)

Max-imum.

Obscu-ration

Annular

phase

Ends

(IST)

Duration of Annularity
  h    m         h      m           h      m m   s
Chamoli 12   08.7 12   09.1 98.6% 12   09.4 0   38
Dehradun 12   05.0 12   05.3 98.6% 12   05.6 0   31
Joshimath 12   09.5 12   09.8 98.6% 12   10.2 0   39
Kurukshetra 12   01.4 12   01.8 98.6% 12   02.1 0   39
Sirsa 11   55.9 11   56.1 98.6% 11   56.4 0   36
Suratgarh 11   52.5 11   52.9 98.6% 11   53.3 0   45
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