“The annular eclipse is similar to the total eclipse of the moon, earth, and sun “The moon is aligned so that it moves directly in front of the sun as seen from Earth,” said Alex Young, assistant director of science at the Department of Solar Physics at the NASA Goddard Space Flight Center.
“But a total eclipse does not occur, that is, the moon does not completely block the sun’s visible disk because the moon is very far away and therefore its size is apparent in the sky. [slightly] Smaller than the sun. This means that a small ring of the solar disk ring is visible around the moon. “
Young said that the solar eclipse occurred about two weeks before or after the lunar eclipse. There was an eclipse of the moon on June 5 and the next eclipse occurs on July 5.
The annular eclipse will start at 12:47 AM ET (4:47 UTC) on June 21 and cross a thin path that begins at sunrise in Africa and ultimately travels to China before ending at sunset over the Pacific Ocean. It will peak at 2:40 AM ET (6:40 UTC) and end at 4:32 AM ET (8:32 UTC).
Partial eclipses will begin at 11:45 PM ET (3:45 UTC) on June 20 and end at 5:34 AM ET (9:34 UTC) on June 21.
Young said it would be visible over central Africa, the Arabian Peninsula, Pakistan, northern India and south-central China. He added that a partial eclipse would appear in most parts of Asia, Africa, southern and eastern Europe, northern Australia, and parts of the Pacific and Indian Oceans.
Of course, this allows weather, so I hope the sky is clear.
The entire eclipse will last about 3.75 hours, but the duration it will pass on individual sites will be equal About a minute and a half. During the peak period, this will actually shorten to just over 30 seconds.
How do you watch
Although this is not a total eclipse of the sun, you still need to watch the eclipse using safety measures.
“Because the sun is so bright, it is still so bright that it cannot be seen with unprotected eyes,” Young said. “You need safe sunglasses or special filters for use with binoculars or binoculars.”
A glance of the sun’s brightness is not only uncomfortable – it’s dangerous. Looking directly at the strong brightness of the sun can damage the retina, the light-sensitive part of the eye. Even the slightest exposure can cause blurred vision or temporary blindness. The problem is that you will not know if it is temporary at first.
Whether you use cardboard eclipse glasses or a portable card with one rectangular width, the most important feature is the filter. Ensure that your Eclipse glasses meet international safety standards ISO 12312-2. Eclipse glasses can be worn over normal glasses.
For a safety test, the only thing you can see with a safe solar filter is the sun itself. If you look through and the sun is too bright, out of focus or surrounded by mysterious fog, or if you can see things like ordinary home lights, the glasses aren’t safe.
If you tend to reuse eclipse glasses that are three years old or more, they were manufactured before applying the international safety standard and come with a warning saying that you cannot look at them for more than three minutes at a time. They should be disposed of, according to the American Astronomical Society.
If you plan to view the eclipse with a camera, binoculars or binoculars, purchase a solar filter to position it at the end of the lens. But don’t wear the sunglasses of an eclipse while looking at any of these. Concentrated light will travel directly through the filters and cause injury to your eyes.
Here are safety tips to keep in mind, according to the American Astronomical Society:
- Always check the solar filter before use; If it is scratched, punctured, torn or damaged, get rid of it. Read and follow any instructions printed on or packed in the package.
- Always supervise children with solar filters.
- If you wear glasses normally, keep them. Place the eclipse glasses on top of them, or hold the handheld viewer in front of them.
- Stand still and cover your eyes with the sunglasses of an eclipse or the sunglasses before looking at the bright sun. After looking at the sun, turn the strainer on and off it; Do not remove it while looking at the sun.
- Do not look at the sun that is not broken or partially broken by an unfiltered camera, binoculars, binoculars or other optical device.
- Likewise, do not look at the sun through the camera, telescope, binoculars or any other optical device while using an eclipse glasses or handheld sunglasses; Concentrated solar radiation can damage the filter and enter your eyes, causing serious injury.
- Seek expert advice from an astronomer before using a solar filter with a camera, telescope, binoculars or any other optical device; Note that the solar filters should be installed on top of any telescope, binoculars, camera lens, or other optics.