Solar eclipse of August 11, 1999

Last updated
Solar eclipse of August 11, 1999
Solar eclips 1999 4 NR.jpg
Totality from France
SE1999Aug11T.png
Map
Type of eclipse
NatureTotal
Gamma 0.5062
Magnitude 1.0286
Maximum eclipse
Duration143 s (2 min 23 s)
Location Ocnele Mari, Vâlcea County, Romania
Coordinates 45°06′N24°18′E / 45.1°N 24.3°E / 45.1; 24.3
Max. width of band112 km (70 mi)
Times (UTC)
Greatest eclipse11:04:09
References
Saros 145 (21 of 77)
Catalog # (SE5000) 9506

A total solar eclipse occurred on 11 August 1999 with an eclipse magnitude of 1.0286. 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. The path of the moon's shadow began in the Atlantic Ocean and, before noon, was traversing the southern United Kingdom, northern France, Belgium, Luxembourg, southern Germany, Austria, Slovenia, Croatia, Hungary, and northern FR Yugoslavia (Vojvodina). The eclipse's maximum was at 11:03 UTC at 45°06′N24°18′E / 45.1°N 24.3°E / 45.1; 24.3 in Romania (next to the town of Ocnele Mari near Râmnicu Vâlcea); [1] [2] [3] and it continued across Bulgaria, the Black Sea, Turkey, the northeastern tip of Syria, northern Iraq, Iran, southern Pakistan and Srikakulam in India and ended in the Bay of Bengal.

Contents

It was the first total eclipse visible from Europe since 22 July 1990, and the first visible in the United Kingdom since 29 June 1927.

Observations

The eclipse as seen from France Film eclipse soleil 1999.jpg
The eclipse as seen from France
Solar eclipse of August 11, 1999
Interactive map of the path of the Umbral Shadow

Because of the high population densities in areas of the path, this was one of the most-viewed total solar eclipses in human history; [4] although some areas in the path of totality (mainly in Western Europe) offered impaired visibility due to adverse weather conditions.

Some of the organized eclipse-watching parties along the path of totality set up video projectors on which people could watch the moon's shadow as it raced towards them. [5] There was substantial coverage on international TV stations of the progress of the eclipse shadow. The moon's shadow was also observed from the Russian Mir space station; during the eclipse, video from Mir was broadcast live on television.

Notable times and coordinates

Animated path SE1999Aug11T.gif
Animated path
Special 2,000 lei note made for the 1999 total eclipse of the Sun, showing the eclipse path over the map of Romania ROL 2000 1999 reverse.jpg
Special 2,000 lei note made for the 1999 total eclipse of the Sun, showing the eclipse path over the map of Romania
EventTime (UTC)Coordinates [10]
1st penumbral contact with Earth's surface (P1)08:26:17
1st external umbral contact (U1)09:29:55 41°2.0′N65°5.4′W / 41.0333°N 65.0900°W / 41.0333; -65.0900
2nd internal umbral contact (U2)09:30:53 43°0.1′N57°55.8′W / 43.0017°N 57.9300°W / 43.0017; -57.9300
Greatest eclipse11:03:07 45°4.8′N24°17.3′E / 45.0800°N 24.2883°E / 45.0800; 24.2883 [11]
3rd internal umbral contact (U3)12:35:33 19°39.7′N80°20.4′E / 19.6617°N 80.3400°E / 19.6617; 80.3400
4th external umbral contact (U4)12:36:26 17°33.5′N87°17.1′E / 17.5583°N 87.2850°E / 17.5583; 87.2850
4th penumbral contact with Earth's surface (P4)13:40:08

Eclipses of 1999

Solar eclipses 1997–2000

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. [12]

Solar eclipse series sets from 1997 to 2000
Descending node Ascending node
SarosMapGammaSarosMapGamma
120
Total solar eclipse of March 9 1997.jpg
Chita, Russia
1997 March 09
SE1997Mar09T.png
Total
0.91830125 1997 September 02
SE1997Sep02P.png
Partial (south)
−1.03521
130
Ecl002-2 (4321047401).jpg
Total eclipse near Guadeloupe
1998 February 26
SE1998Feb26T.png
Total
0.23909135 1998 August 22
SE1998Aug22A.png
Annular
−0.26441
140 1999 February 16
SE1999Feb16A.png
Annular
−0.47260145
Solar eclipse 1999 4.jpg
Totality from France
1999 August 11
SE1999Aug11T.png
Total
0.50623
150 2000 February 05
SE2000Feb05P.png
Partial (south)
−1.22325155 2000 July 31
SE2000Jul31P.png
Partial (north)
1.21664

Partial solar eclipses on July 1, 2000 and December 25, 2000 occur in the next lunar year eclipse set.

Saros 145

This solar eclipse is a part of Saros cycle 145, repeating every 18 years, 11 days, 8 hours, containing 77 events. The series started with a partial solar eclipse on January 4, 1639, and reached a first annular eclipse on June 6, 1891. It was a hybrid event on June 17, 1909, and total eclipses from June 29, 1927, through September 9, 2648. The series ends at member 77 as a partial eclipse on April 17, 3009. The longest eclipse will occur on June 25, 2522, with a maximum duration of totality of 7 minutes, 12 seconds. All eclipses in this series occurs at the Moon's ascending node.

Series members 10–32 occur between 1801 and 2359
101112
SE1801Apr13P.png
April 13, 1801
SE1819Apr24P.png
April 24, 1819
SE1837May04P.png
May 4, 1837
131415
SE1855May16P.png
May 16, 1855
SE1873May26P.png
May 26, 1873
SE1891Jun06A.png
June 6, 1891
161718
SE1909Jun17H.png
June 17, 1909
SE1927Jun29T.png
June 29, 1927
1945Jul09T.png
July 9, 1945
192021
SE1963Jul20T.png
July 20, 1963
SE1981Jul31T.png
July 31, 1981
SE1999Aug11T.png
August 11, 1999
222324
SE2017Aug21T.png
August 21, 2017
SE2035Sep02T.png
September 2, 2035
SE2053Sep12T.png
September 12, 2053
252627
SE2071Sep23T.png
September 23, 2071
SE2089Oct04T.png
October 4, 2089
SE2107Oct16T.png
October 16, 2107
282930
SE2125Oct26T.png
October 26, 2125
SE2143Nov07T.png
November 7, 2143
SE2161Nov17T.png
November 17, 2161
313233
SE2179Nov28T.png
November 28, 2179
SE2197Dec09T.png
December 9, 2197
SE2215Dec21T.png
December 21, 2215
343536
SE2233Dec31T.png
December 31, 2233
SE2252Jan12T.png
January 12, 2252
SE2270Jan22T.png
January 22, 2270
373839
SE2288Feb02T.png
February 2, 2288
SE2306Feb14T.png
February 14, 2306
SE2324Feb25T.png
February 25, 2324
40
SE2342Mar08T.png
March 8, 2342

Metonic series

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.

22 eclipse events between January 5, 1935 and August 11, 2018
January 4-5October 23-24August 10-12May 30-31March 18-19
111113115117119
SE1935Jan05P.png
January 5, 1935
SE1942Aug12P.png
August 12, 1942
SE1946May30P.png
May 30, 1946
SE1950Mar18A.png
March 18, 1950
121123125127129
SE1954Jan05A.png
January 5, 1954
SE1957Oct23T.png
October 23, 1957
SE1961Aug11A.png
August 11, 1961
SE1965May30T.png
May 30, 1965
SE1969Mar18A.png
March 18, 1969
131133135137139
SE1973Jan04A.png
January 4, 1973
SE1976Oct23T.png
October 23, 1976
SE1980Aug10A.png
August 10, 1980
SE1984May30A.png
May 30, 1984
SE1988Mar18T.png
March 18, 1988
141143145147149
SE1992Jan04A.png
January 4, 1992
SE1995Oct24T.png
October 24, 1995
SE1999Aug11T.png
August 11, 1999
SE2003May31A.png
May 31, 2003
SE2007Mar19P.png
March 19, 2007
151153155
SE2011Jan04P.png
January 4, 2011
SE2014Oct23P.png
October 23, 2014
SE2018Aug11P.png
August 11, 2018

See also

Notes

  1. Stavinschi, M., National Seminar" The total solar Eclipse of August, 11, 1999. Interdisciplinary approach, Bucharest, October 15, 1998 in: Romanian Astron. J., vol.8, N.2, p.146 (1998)
  2. Scientific session " Eclipsa 99", Romanian Astronomical Journal, vol.9, N.1, p.103 (1999)
  3. Stavinschi, M., The maximum of the last eclipse of the Millenium was in Romania, Romanian Astronomical Journal, , vol.9, N.2, p.109- 114, 1999
  4. "Solar show in sky or on the Internet". 10 August 1999.
  5. "ISMB 99". Bioinf.mpi-sb.mpg.de. Retrieved 2013-10-01.
  6. "Boats warned of freak winds during eclipse". Guardian. 7 June 1999. Archived from the original on 17 October 2015.
  7. Hatherill, Chris (9 March 2016). "When Astronomers Chased a Total Eclipse in a Concorde". Vice . Retrieved 10 March 2016.
  8. Janković, Vladimir (July 2010). "Atmosfear: Slobodan Milošević versus 1999 Solar Eclipse". Centre for the History of Science, Technology of Medicine.
  9. Dobson, Roger (1999-08-21). "UK hospitals assess eye damage after solar eclipse". The BMJ. 319 (7208): 469. doi:10.1136/bmj.319.7208.469. PMC   1116382 . PMID   10454393.
  10. "Eclipse2017 - Total Solar Eclipse 2017". eclipse.gsfc.nasa.gov.
  11. "Eclipse2017 - Total Solar Eclipse 2017". eclipse.gsfc.nasa.gov.
  12. 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.

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References

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