total ng araw eclipse will be observed in North America continent on Monday 8th Abril 2024. Simula sa Mexico, lilipat ito sa Estados Unidos mula Texas hanggang Maine, na magtatapos sa baybayin ng Atlantiko ng Canada.
In the USA, while the partial ng araw eclipse will be experienced in the entire country, the total ng araw eclipse will begin at 1:27 p.m. CDT in Eagle Pass, Texas, cut diagonally across the country and end around 3:33 p.m. EDT in Lee, Maine.
Ang landas ng kabuuan ay magiging humigit-kumulang 115 milya ang lapad na sumasaklaw sa isang rehiyon na pinaninirahan ng mahigit 30 milyong tao.
total ng araw eclipse occurs when Moon comes between the Earth and Sun obscuring the Sun completely from view on Earth. It is an important astronomical event for the scientists and researchers for several reasons.
Corona, the outermost part of the Sun’s atmosphere, can be seen from the Earth only during the total ng araw eclipse hence such events offer researchers opportunity to study. Unlike photosphere, the visible layer of the Sun whose temperature is about 6000 K, the outer atmosphere corona gets heated to millions of degrees Kelvin. Stream of electrically charged particles emanate from the corona into puwang in all directions (called ng araw wind) and bath all planeta nasa ng araw system including the Earth. It poses threat to life form and electrical technology based modern human society including satellites, astronauts, navigation, communications, air travel, electrical power grids. Earth’s magnetic field provide protection against the incoming ng araw hangin sa pamamagitan ng pagpapalihis sa kanila. Drastic ng araw Ang mga kaganapan tulad ng mass ejection ng electrically charged na plasma mula sa corona ay lumilikha ng mga kaguluhan sa solar wind. Kaya ang pangangailangan ng pag-aaral ng corona, solar wind at mga kaguluhan sa mga kondisyon nito.
Total solar eclipses provide opportunity to test scientific theories as well. One classic example is observation of gravitational lensing (i.e., bending of bituin light due to gravity of massive celestial objects) during total solar eclipse of 1919 over a century ago which validated Einstein’s general relativity.
The sky has changed rapidly due to the commercialization of Low Earth Mga Orbits (LEO). Given there are nearly 10,000 satellites in the orbita now, would this total solar eclipse reveal a sky full of satellites? A recent simulation study suggests that the high sky brightness during totality will make the brightest satellites undetectable to the unaided eye but the glints from artificial objects in orbita could still be visible.
***
Sanggunian:
- NASA. 2024 Total Eclipse. Available sa https://science.nasa.gov/eclipses/future-eclipses/eclipse-2024/
- National Solar Observatory (NSO). Total Solar Eclipse – Abril 8, 2024. Available sa https://nso.edu/eclipse2024/
- Cervantes-Cota JL, Galindo-Uribarri S., at Smoot GF, 2020. The Legacy of Einstein's Eclipse, Gravitational Lensing. Universe 2020, 6(1), 9; DOI: https://doi.org/10.3390/universe6010009
- Lawler SM, Rein H., at Boley AC, 2024. Satellite Visibility Noong Abril 2024 Total Eclipse. Preprint sa axRiv. DOI: https://doi.org/10.48550/arXiv.2403.19722
***
