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Solar eclipse of August 2, 2027

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Solar eclipse of August 2, 2027
Map
Type of eclipse
NatureTotal
Gamma0.1421
Magnitude1.079
Maximum eclipse
Duration383 s (6 min 23 s)
Coordinates25°30′N 33°12′E / 25.5°N 33.2°E / 25.5; 33.2
Max. width of band258 km (160 mi)
Times (UTC)
Greatest eclipse10:07:50
References
Saros136 (38 of 71)
Catalog # (SE5000)9568

A total solar eclipse will occur at the Moon's descending node of orbit on Monday, August 2, 2027,[1] with a magnitude of 1.079. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 2.5 hours before perigee (on August 2, 2027, at 7:25 UTC), the Moon's apparent diameter will be larger.[2]

Path

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Totality will commence over the eastern Atlantic Ocean and travel across the Strait of Gibraltar between Spain and Morocco, and continue across parts of North Africa and the Middle East. Major cities and locations under the path of totality will include:[3]

The maximum duration of totality will be observed in Egypt, approximately 37 miles (60 km) southeast of Luxor, and will last 6 minutes and 22 seconds.[4]

A partial solar eclipse will be visible from the extreme east tip of Maine, United States, far eastern Quebec and the Atlantic Provinces in Canada, southern Greenland, Iceland, Ireland, Great Britain, nearly the entirety of the European continent, all but the southern quarter of Africa, the Middle East, and from South and Southeast Asia.[3]

It will be the first of three total solar eclipses that are observable in Tunisia in the 21st century, passing over the central part of the country.[5] It will be the second total eclipse in Spain within a year, after August 2026. An annular eclipse will appear in Spain in January 2028. A national eclipse committee has been established to coordinate eclipse-related activities.[6]

Duration

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This is the second longest total solar eclipse in the 21st century, the longest being the eclipse prior to this one in Solar Saros 136, that of July 22, 2009. The 2009 eclipse maximum duration of 6 minutes and 39.5 seconds occurred on the Pacific Ocean, and the longest duration on land was on remote, uninhabited North Iwo Jima.[7] The maximum duration of this eclipse is 6 minutes and 23.2 seconds, occurring in the northeastern part of Egypt's New Valley Governorate. The location of the greatest eclipse is about 250 kilometres (160 mi) southeast in Red Sea Governorate, with a slightly shorter duration. This is the longest total solar eclipse on easily accessible land in the 21st century; a longer one will not occur until June 3, 2114.[8]

Images

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Animated path

Details of totality in some places or cities

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Solar Eclipse of August 2, 2027
Country or Territory Place or City Start

of
partial
eclipse
(Local Time)

Start of
total
eclipse (Local Time)
End of
total
eclipse (Local Time)
Duration of
total
eclipse
End of
partial
eclipse (Local Time)
Magnitude
 Morocco Tangier 08:40:33 09:44:38 09:49:29 4 min 50s 11:00:20 1,072
 Spain Tarifa 09:40:50 10:45:05 10:49:44 4 min 39 s 12:00:42 1,072
 Morocco Tétouan 08:40:47 09:45:10 09:50:01 4 min 51s 11:01:10 1,072
 Spain Cadiz 09:40:42 10:45:18 10:48:21 3 min 03 s 11:59:35 1,072
 Spain Ceuta 09:40:58 10:45:19 10:50:07 4 min 48 s 12:01:11 1,072
 Spain Algeciras 09:41:01 10:45:25 10:49:54 4 min 29 s 12:00:59 1,072
 Gibraltar Gibraltar 09:41:04 10:45:30 10:50:01 4 min 31 s 12:01:07 1,072
 Spain Marbella 09:41:37 10:46:46 10:50:05 3 min 18 s 12:01:50 1,072
 Spain Benalmádena 09:41:55 10:47:26 10:50:19 2 min 53 s 12:02:26 1,072
 Spain Malaga 09:42:04 10:48:07 10:50:00 1 min 53 s 12:02:36 1,072
 Spain Melilla 09:42:22 10:48:12 10:52:44 4 min 33 s 12:05:20 1,073
 Morocco Nador 08:42:22 09:48:13 09:52:44 4 min 31 s 11:05:21 1,073
 Spain Motril 09:42:43 10:49:18 10:50:59 1 min 41 s 12:04:04 1,073
 Morocco Oujda 08:42:56 09:50:55 09:52:27 1 min 32 s 11:07:16 1,073
 Algeria Tlemcen 08:43:30 09:50:56 09:54:07 3 min 11 s 11:08:19 1,073
 Algeria Oran 08:44:26 09:51:03 09:56:11 5 min 08 s 11:09:22 1,073
 Algeria Bou Saâda 08:48:46 09:57:55 10:03:12 5 min 17 s 11:18:30 1,075
 Algeria Blida 08:47:55 09:57:10 10:00:01 2 min 51 s 11:15:21 1,074
 Algeria Batna 08:51:01 10:01:03 10:06:20 5 min 17 s 11:22:09 1,075
 Tunisia Sfax 08:56:23 10:08:46 10:14:26 5 min 40 s 11:31:45 1,076
 Tunisia Kairouan 08:55:43 10:08:49 10:11:33 2 min 44 s 11:29:36 1,076
 Libya Northeast of Tripoli 09:59:46 11:16:28 11:17:23 55 s 12:38:32 1,077
 Libya Al-Khums 10:01:17 11:18:40 11:19:23 43 s 12:40:53 1,077
 Libya Benghasi 10:10:41 11:27:51 11:34:00 6 m 09 s 12:53:15 1,078
 Egypt Siwa Oasis 11:22:11 12:42:33 12:48:03 5 min 30 s 14:08:04 1,079
 Egypt Asyut 11:35:29 12:56:52 13:02:59 6 min 07 s 14:21:28 1,079
 Egypt Sohag 11:37:13 12:58:44 13:05:07 6 min 22 s 14:23:25 1,079
 Egypt Qena 11:39:51 13:01:33 13:07:45 6 min 12 s 14:25:48 1,079
 Egypt Luxor 11:40:12 13:02:02 13:08:23 6 min 21 s 14:26:30 1,079
 Saudi Arabia Jeddah 12:00:22 13:22:16 13:28:16 6 min 00 s 14:43:44 1,079
 Saudi Arabia Mecca 12:01:56 13:24:02 13:29:09 5 min 07 s 14:44:41 1,079
 Saudi Arabia Taif 12:03:32 13:26:02 13:29:55 3 min 53 s 14:45:43 1,079
 Saudi Arabia Abha 12:13:08 13:34:14 13:40:07 6 min 03 s 14:53:46 1,078
 Saudi Arabia Khamis Mushait 12:13:26 13:34:26 13:40:27 6 min 01 s 14:53:51 1,078
 Saudi Arabia Jizan 12:15:13 13:38:18 13:41:14 2 min 56 s 14:56:09 1,078
 Yemen Sana'a 12:21:54 13:44:11 13:46:32 2 min 21 s 15:00:26 1,078
 Yemen Ataq 12:29:00 13:48:10 13:53:57 5 min 47 s 15:04:41 1,077
 Somalia Bosaso 12:39:39 13:58:08 14:02:10 4 min 02 s 15:11:56 1,076
 Somalia Bandar Beyla 12:46:05 14:04:20 14:06:26 2 min 08 s 15:15:55 1,076
 British Indian Ocean Territory Salomon Islands, Peros Banhos and Nelsons Island in Chagos Archipelago 16:37:41 17:40:10 17:43:29 3 min 19 s 18:39:42 1,067

Eclipse details

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Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.[9]

August 2, 2027 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 2027 August 02 at 07:31:21.9 UTC
First Umbral External Contact 2027 August 02 at 08:24:37.8 UTC
First Central Line 2027 August 02 at 08:26:14.5 UTC
First Umbral Internal Contact 2027 August 02 at 08:27:51.1 UTC
First Penumbral Internal Contact 2027 August 02 at 09:22:00.9 UTC
Greatest Duration 2027 August 02 at 10:01:33.8 UTC
Equatorial Conjunction 2027 August 02 at 10:02:10.7 UTC
Ecliptic Conjunction 2027 August 02 at 10:06:23.6 UTC
Greatest Eclipse 2027 August 02 at 10:07:50.2 UTC
Last Penumbral Internal Contact 2027 August 02 at 10:53:47.0 UTC
Last Umbral Internal Contact 2027 August 02 at 11:47:53.1 UTC
Last Central Line 2027 August 02 at 11:49:29.5 UTC
Last Umbral External Contact 2027 August 02 at 11:51:05.9 UTC
Last Penumbral External Contact 2027 August 02 at 12:44:21.3 UTC
August 2, 2027 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 1.07903
Eclipse Obscuration 1.16430
Gamma 0.14209
Sun Right Ascension 08h49m26.9s
Sun Declination +17°45'41.3"
Sun Semi-Diameter 15'45.5"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 08h49m40.1s
Moon Declination +17°53'47.8"
Moon Semi-Diameter 16'43.1"
Moon Equatorial Horizontal Parallax 1°01'21.4"
ΔT 72.8 s

Bright stars and planets visible during totality

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The eclipsed Sun will be in mid-Cancer, a few degrees southeast of the Beehive Cluster (which will not be visible to the naked eye) and Venus (which will most definitely be seen if the sky is at all transparent). Mercury will be several degrees west of Venus and lined up with Pollux and Castor. Saturn will be many degrees west of the Sun. Jupiter and Regulus will be close together in Leo about 20 degrees east of the Sun, and Mars will be many degrees farther east in Virgo. Over most of the continental areas in the path of totality, the Winter Hexagon will be visible, although on the Arabian Peninsula its westernmost stars -- Aldebaran and Rigel -- will be low. In the British Indian Ocean Territory the Winter Hexagon stars will either have disappeared below the western horizon or will be very low, but Alpha Centauri, Beta Centauri and the Southern Cross will be well up in the south.

Eclipse season

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This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of July–August 2027
July 18
Ascending node (full moon)
August 2
Descending node (new moon)
August 17
Ascending node (full moon)
Penumbral lunar eclipse
Lunar Saros 110
Total solar eclipse
Solar Saros 136
Penumbral lunar eclipse
Lunar Saros 148
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Eclipses in 2027

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Solar Saros 136

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Inex

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Triad

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Solar eclipses of 2026–2029

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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.[10]

The partial solar eclipses on June 12, 2029 and December 5, 2029 occur in the next lunar year eclipse set.

Solar eclipse series sets from 2026 to 2029
Ascending node   Descending node
Saros Map Gamma Saros Map Gamma
121 February 17, 2026

Annular
−0.97427 126 August 12, 2026

Total
0.89774
131 February 6, 2027

Annular
−0.29515 136 August 2, 2027

Total
0.14209
141 January 26, 2028

Annular
0.39014 146 July 22, 2028

Total
−0.60557
151 January 14, 2029

Partial
1.05532 156 July 11, 2029

Partial
−1.41908

Saros 136

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This eclipse is a part of Saros series 136, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on June 14, 1360. It contains annular eclipses from September 8, 1504 through November 12, 1594; hybrid eclipses from November 22, 1612 through January 17, 1703; and total eclipses from January 27, 1721 through May 13, 2496. The series ends at member 71 as a partial eclipse on July 30, 2622. Its eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

The longest duration of annularity was produced by member 9 at 32 seconds on September 8, 1504, and the longest duration of totality was produced by member 34 at 7 minutes, 7.74 seconds on June 20, 1955. All eclipses in this series occur at the Moon’s descending node of orbit.[11]

Series members 26–47 occur between 1801 and 2200:
26 27 28

March 24, 1811

April 3, 1829

April 15, 1847
29 30 31

April 25, 1865

May 6, 1883

May 18, 1901
32 33 34

May 29, 1919

June 8, 1937

June 20, 1955
35 36 37

June 30, 1973

July 11, 1991

July 22, 2009
38 39 40

August 2, 2027

August 12, 2045

August 24, 2063
41 42 43

September 3, 2081

September 14, 2099

September 26, 2117
44 45 46

October 7, 2135

October 17, 2153

October 29, 2171
47

November 8, 2189

Metonic series

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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 descending node.

21 eclipse events between May 21, 1993 and May 20, 2069
May 20–21 March 9 December 25–26 October 13–14 August 1–2
118 120 122 124 126

May 21, 1993

March 9, 1997

December 25, 2000

October 14, 2004

August 1, 2008
128 130 132 134 136

May 20, 2012

March 9, 2016

December 26, 2019

October 14, 2023

August 2, 2027
138 140 142 144 146

May 21, 2031

March 9, 2035

December 26, 2038

October 14, 2042

August 2, 2046
148 150 152 154 156

May 20, 2050

March 9, 2054

December 26, 2057

October 13, 2061

August 2, 2065
158

May 20, 2069

Tritos series

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This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1801 and 2200

April 14, 1809
(Saros 116)

March 14, 1820
(Saros 117)

February 12, 1831
(Saros 118)

January 11, 1842
(Saros 119)

December 11, 1852
(Saros 120)

November 11, 1863
(Saros 121)

October 10, 1874
(Saros 122)

September 8, 1885
(Saros 123)

August 9, 1896
(Saros 124)

July 10, 1907
(Saros 125)

June 8, 1918
(Saros 126)

May 9, 1929
(Saros 127)

April 7, 1940
(Saros 128)

March 7, 1951
(Saros 129)

February 5, 1962
(Saros 130)

January 4, 1973
(Saros 131)

December 4, 1983
(Saros 132)

November 3, 1994
(Saros 133)

October 3, 2005
(Saros 134)

September 1, 2016
(Saros 135)

August 2, 2027
(Saros 136)

July 2, 2038
(Saros 137)

May 31, 2049
(Saros 138)

April 30, 2060
(Saros 139)

March 31, 2071
(Saros 140)

February 27, 2082
(Saros 141)

January 27, 2093
(Saros 142)

December 29, 2103
(Saros 143)

November 27, 2114
(Saros 144)

October 26, 2125
(Saros 145)

September 26, 2136
(Saros 146)

August 26, 2147
(Saros 147)

July 25, 2158
(Saros 148)

June 25, 2169
(Saros 149)

May 24, 2180
(Saros 150)

April 23, 2191
(Saros 151)

Inex series

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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.

Series members between 1801 and 2200

December 20, 1824
(Saros 129)

November 30, 1853
(Saros 130)

November 10, 1882
(Saros 131)

October 22, 1911
(Saros 132)

October 1, 1940
(Saros 133)

September 11, 1969
(Saros 134)

August 22, 1998
(Saros 135)

August 2, 2027
(Saros 136)

July 12, 2056
(Saros 137)

June 22, 2085
(Saros 138)

June 3, 2114
(Saros 139)

May 14, 2143
(Saros 140)

April 23, 2172
(Saros 141)

References

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  1. ^ "August 2, 2027 Total Solar Eclipse". timeanddate. Retrieved 13 August 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 13 August 2024.
  3. ^ a b "Total Solar Eclipse on August 2, 2027: Path Map and Times". www.timeanddate.com. Retrieved 2024-03-23.
  4. ^ "Longest Duration of Total Solar Eclipse of 2027 Aug 02". NASA Goddard Space Flight Center. NASA. Retrieved 7 September 2017.
  5. ^ "Map of Solar Eclipse of August 2, 2027" (Map). "Solar Eclipse Maps". NASA. Retrieved October 21, 2017.
  6. ^ "Eclipses at Spain - [2026-2027-2028]".
  7. ^ Fred Espenak. "Total Solar Eclipse of 2009 Jul 22 - Google Maps and Solar Eclipse Paths". NASA Eclipse Web Site. Archived from the original on 22 July 2009.
  8. ^ Fred Espenak. "Total Solar Eclipses with Durations Exceeding 06m 00s: 2001 to 3000". NASA Eclipse Web Site. Archived from the original on 10 March 2014.
  9. ^ "Total Solar Eclipse of 2027 Aug 02". EclipseWise.com. Retrieved 13 August 2024.
  10. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  11. ^ "NASA - Catalog of Solar Eclipses of Saros 136". eclipse.gsfc.nasa.gov.
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