By Christopher Lloyd T. Caliwan
MANILA, June 21 (PNA) — The country on Saturday will experience the longest day or the so-called summer solstice, according to Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA).
In an advisory, PAGASA officer in charge Dr. Vicente Malano said that the summer solstice falls on June 21, Saturday at 6:51 P.M. (Philippine Standard Time).
Solstice is derived from the Latin word sol (sun) and sistere (to stand still). This summer solstice also signals the start of summer season in some parts of the world.
This is the time when the Sun attains its greatest declination of +23.5 degrees and passes directly overhead at noon for all observers at latitude 23.5 degrees North, which is known as the Tropic of Cancer, PAGASA said in astronomical diary for June.
PAGASA explained daytimes in the Philippines and countries in the northern hemisphere will be at its longest during Summer solstice, which falls on June 21.
This event marks the start of the apparent southward movement of the Sun in the ecliptic, it added.
Also referred to as midsummer in other countries, the summer solstice occurs when the tilt of the Earths axis is most inclined towards the sun. (PNA)