Solar eclipse of May 9, 1910

A total solar eclipse occurred on May 9, 1910.[1][2][3] 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. Totality was visible from part of Wilkes Land in Antarctica and Tasmania in Australia.

Solar eclipse of May 9, 1910
Map
Type of eclipse
NatureTotal
Gamma−0.9437
Magnitude1.06
Maximum eclipse
Duration255 s (4 min 15 s)
Coordinates48.2°S 125.2°E / -48.2; 125.2
Max. width of band594 km (369 mi)
Times (UTC)
Greatest eclipse5:42:13
References
Saros117 (63 of 71)
Catalog # (SE5000)9304

Observations

Except for Antarctica, the only land covered by the path of totality was the central and southern parts of Tasmania. The eclipse occurred in winter when Tasmania is usually rainy with bad observation conditions. However, British pioneer aviator Francis McClean still organized and led a team to Port Davey on the southwestern coast of Tasmania, but in the end failed to make observations due to rainy weather. In addition, observations on Bruny Island, southeast of Tasmania also failed due to the weather. Zeehan and Strahan on the west coast of Tasmania were clear during the partial phase, but had poor weather during the total phase. Queenstown, located slightly inland, was one of the few places where the entire process of the eclipse was seen. Some observers took images of the corona there.[4][5]

Solar eclipses of 1910–1913

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.[6]

Solar eclipse series sets from 1910 to 1913
Ascending node   Descending node
117May 9, 1910

Total		 122November 2, 1910

Partial
127April 28, 1911

Total		 132October 22, 1911

Annular
137April 17, 1912

Hybrid		 142October 10, 1912

Total
147April 6, 1913

Partial		 152September 30, 1913

Partial

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).

References
  1. "PARTIAL ECLIPSE OF THE SUN. IMPERFECT OBSERVATION IN SYDNEY". The Sun. Sydney, New South Wales, Australia. 1910-05-09. p. 5. Retrieved 2023-11-03 – via Newspapers.com.
  2. "ECLIPSE OF THE SUN. VISIBLE AT BROKEN HILL TO-DAY". The Barrier Miner. Broken Hill, New South Wales, Australia. 1910-05-09. p. 5. Retrieved 2023-11-03 – via Newspapers.com.
  3. "The solar eclipse". The Daily Telegraph. Sydney, New South Wales, Australia. 1910-05-10. p. 10. Retrieved 2023-11-03 – via Newspapers.com.
  4. F. K. McClean; et al. (May 1910). "Report of the Solar Eclipse Expedition to Port Davey, Tasmania, May, 1910" (PDF). Archived from the original (PDF) on 21 October 2020.
  5. Lockyer, Sir Norman; Group, Nature Publishing; Gateway, UM-Medsearch (23 June 1910). "THE TOTAL SOLAR ECLIPSE OF May 9, 1910". Nature. 83 (2121): 494–495. doi:10.1038/083494a0. Archived from the original on 1 January 2014.
  6. 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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