Solar eclipse of June 21, 2020

Solar eclipse of June 21, 2020
Solar eclipse of June 21, 2020
	Annularity as seen from Beigang, Yunlin, Taiwan
	Map
Type of eclipse
Nature	Annular
Gamma	0.1209
Magnitude	0.994
Maximum eclipse
Duration	38 s (0 min 38 s)
Coordinates	30°30′N 79°42′E / 30.5°N 79.7°E
Max. width of band	21 km (13 mi)
Times (UTC)
Greatest eclipse	6:41:15
References
Saros	137 (36 of 70)
Catalog # (SE5000)	9553

An annular solar eclipse occurred on Sunday, June 21, 2020.^[1]^[2]^[3]^[4]^[5] An annular solar eclipse is a solar eclipse whose presentation looks like a ring, or annulus; it occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most, but not all, of the Sun's light. In this instance, the Moon's apparent diameter was 0.6% smaller than the Sun's.^[6]

Path[edit]

The path of this annular eclipse passed through parts of Central and Eastern Africa; southern Arabian Peninsula, including Yemen, Oman, and southern Saudi Arabia; parts of South Asia and the Himalayas, including southern Pakistan, northern India, and Nepal; parts of East Asia, including South China and Taiwan, and part of Micronesia, including Guam.^[7] A partial eclipse was visible throughout much of the rest of Africa, southeastern Europe, most of Asia, and in New Guinea and northern Australia just before sunset. In Europe, the partial eclipse was visible to places southeast of the line passing through parts of Italy, Hungary, Ukraine, and southwestern Russia.^[7]

Animated path of the eclipse

Animation of images from Himawari 8 showing the Moon's shadow moving across the Earth.

Gallery[edit]

Partial from Addis Ababa, Ethiopia, 4:53 UTC
Partial from Sana'a, Yemen, 5:09 UTC
Partial from Riyadh, Saudi Arabia, 5:11 UTC
Eclipse progression from Tehran, Iran
Partial from Gyumri, Armenia, 5:45 UTC
Partial from Colombo, Sri Lanka, 5:48 UTC
Partial from Lahore, Pakistan, 6:49 UTC
Partial from Kathmandu, Nepal, 6:51 UTC
Partial from Irkutsk, Russia, ~7:22 UTC
Partial from Bacoor, Philippines, 7:31 UTC
Partial from Kolkata, India, 7:42 UTC
Telescopic view from Chennai, India
Partial from Beijing, China, 7:51 UTC
Partial from Jinan, China, 7:56 UTC
Partial from Tai'an, China, 7:57 UTC
Partial from Gandara, Samar, Philippines, 8:01 UTC
Partial from Kaohsiung, Taiwan, 8:05 UTC
Partial from Yau Tong, Hong Kong, 8:08 UTC
Partial from Taichung, Taiwan, 8:09 UTC
Partial from Pangkalpinang, Indonesia, 8:10 UTC
Xiamen, China, 8:11 UTC
Time-lapse image of the eclipse in Xiamen, China
Partial from Fukuoka, Japan, 8:12 UTC
Chiayi, Taiwan, 8:13 UTC
Partial from Hsinchu, Taiwan, 8:18 UTC
Partial from Surabaya, Indonesia, 8:22 UTC
Partial from San Jose del Monte, Philippines, 8:23 UTC
Eclipse progression from Oria, Italy
The Moon's antumbra, as seen from the ISS
Eclipse progression at the annular stage, seen from Minxiong, Chiayi County, Taiwan

Related eclipses[edit]

Solar eclipses of 2018–2021[edit]

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.^[8]

Note: Partial solar eclipses on February 15, 2018, and August 11, 2018, occurred during the previous semester series.

Solar eclipse series sets from 2018 to 2021
Saros	Map	Gamma	Saros	Map	Gamma
Ascending node			Descending node
117 Partial from Melbourne, Australia	2018 July 13 Partial	−1.35423	122 Partial from Nakhodka, Russia	2019 January 6 Partial	1.14174
127 La Serena, Chile	2019 July 2 Total	−0.64656	132 Jaffna, Sri Lanka	2019 December 26 Annular	0.41351
137 Beigang, Yunlin, Taiwan	2020 June 21 Annular	0.12090	142 Gorbea, Chile	2020 December 14 Total	−0.29394
147 Partial from Halifax, Canada	2021 June 10 Annular	0.91516	152 From HMS Protector off South Georgia	2021 December 4 Total	−0.95261

Saros 137[edit]

It is a part of Saros cycle 137, an eclipse series repeating every 18 years and 11 days, containing 70 events. The series started with the partial solar eclipse on May 25, 1389. It contains total eclipses from August 20, 1533, through December 6, 1695, the first set of hybrid eclipses from December 17, 1713, through February 11, 1804, the first set of annular eclipses from February 21, 1822, through March 25, 1876, a second set of hybrid eclipses from April 6, 1894, through April 28, 1930, and the second set of annular eclipses from May 9, 1948, through April 13, 2507. The series ends at member 70 as a partial eclipse on June 28, 2633. All eclipses in this series occurs at the Moon’s ascending node.

Series members 30–40 occur between 1901 and 2100:
30	31	32
April 17, 1912	April 28, 1930	May 9, 1948
33	34	35
May 20, 1966	May 30, 1984	June 10, 2002
36	37	38
June 21, 2020	July 2, 2038	July 12, 2056
39	40
July 24, 2074	August 3, 2092

Inex series[edit]

This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings. In the 18th century:

Solar Saros 127: Total Solar Eclipse of 1731 Jan 08
Solar Saros 128: Annular Solar Eclipse of 1759 Dec 19
Solar Saros 129: Annular Solar Eclipse of 1788 Nov 27

Inex series members between 1801 and 2200:
Near lunar perigee	After lunar apogee Before lunar perigee	Before lunar apogee After lunar perigee
November 9, 1817 (Saros 130)	October 20, 1846 (Saros 131)	September 29, 1875 (Saros 132)
September 9, 1904 (Saros 133)	August 21, 1933 (Saros 134)	July 31, 1962 (Saros 135)
July 11, 1991 (Saros 136)	June 21, 2020 (Saros 137)	May 31, 2049 (Saros 138)
May 11, 2078 (Saros 139)	April 23, 2107 (Saros 140)	April 1, 2136 (Saros 141)
March 12, 2165 (Saros 142)	February 21, 2194 (Saros 143)

In the 23rd century:

Solar Saros 144: Annular Solar Eclipse of 2223 Feb 01
Solar Saros 145: Total Solar Eclipse of 2252 Jan 12
Solar Saros 146: Annular Solar Eclipse of 2280 Dec 22

Metonic series[edit]

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

21 eclipse events between June 21, 1982, and June 21, 2058
June 21	April 8–9	January 26	November 13–14	September 1–2
107	109	111	113	115
June 21, 1963	April 9, 1967	January 26, 1971	November 14, 1974	September 2, 1978
117	119	121	123	125
June 21, 1982	April 9, 1986	January 26, 1990	November 13, 1993	September 2, 1997
127	129	131	133	135
June 21, 2001	April 8, 2005	January 26, 2009	November 13, 2012	September 1, 2016
137	139	141	143	145
June 21, 2020	April 8, 2024	January 26, 2028	November 14, 2031	September 2, 2035
147	149	151	153	155
June 21, 2039	April 9, 2043	January 26, 2047	November 14, 2050	September 2, 2054
157
June 21, 2058