The important land areas over which this dark shadow passed began with northern Sumatra, then Siam, and eastward across the central Philippines. The length of the total phase along the center of totality in the Philippines varied from about 3 min. 55 sec. at Dumaran Island, Palawan, to 3 min. 28 sec. at Siargao Island. The important town of Iloilo, on the island of Panay, was almost exactly on the central line, and at this place the duration of totality was about 3 min. 43 sec. The times of mid-eclipse and percentages of sun eclipsed for the Philippine area are shown on Fig. 1.
The Solar Eclipse Expedition 1929
By Commander C. H. J. Keppler, U. S. Navy
AN ECLIPSE of the sun, remarkable for the duration of its totality, took “place on May 9, 1929. The belt of totality, about ninety miles wide, stretched over a long path beginning in the Indian Ocean, thence across the southern China Sea, northern Sulu Sea, and into the Pacific Ocean. The maximum length of totality for this eclipse at any place was 5 min. 7.3 sec., but unfortunately the places of maximum duration all lay at sea.