Safe Ways To Look At The Sun

Safe Ways To Look At The Sun – Except during the brief total phase of a total solar eclipse, when the moon completely blocks the bright face of the sun, it is not possible to look directly at the sun without specialized eye protection.

Viewing any part of the bright sun through a camera lens, binoculars, or telescope without a special solar filter attached to the front of the optic will immediately cause severe eye damage.

Safe Ways To Look At The Sun

Crowds use handheld solar viewers and eclipse glasses to view the eclipse safely. Credit: National Park Service

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When viewing the partial phases of a solar eclipse directly with your eyes, which occur before and after totality, you should always look through safe solar viewing glasses (“eclipse glasses”) or a safe handheld solar viewer. Eclipse glasses are not ordinary sunglasses. Regular sunglasses, no matter how dark, are not safe for viewing the sun. Safe solar viewers are thousands of times darker and must comply with the international standard ISO 12312-2.

Always check your goggles or handheld monitor before use. Discard the device if it is torn, scratched or otherwise damaged. Always supervise children using sun screens.

Do not look at the Sun through a camera lens, telescope, binoculars, or any other optical device when wearing eclipse glasses or using a handheld solar viewer – focused solar rays will burn through the filter and cause serious eye damage.

A phloem’s circular holes form a crescent on Earth during the partial phases of a solar eclipse. Credit: Joy Ng

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If you don’t have eclipse glasses or a handheld solar viewer, you can use the indirect viewing method, which doesn’t involve looking directly at the sun. One way is to use a pinhole projector, which has a small opening (such as a hole in an index card) and projects an image of the sun onto an adjacent surface. With the sun behind you, you can safely view the displayed image. Do not look at the sun through the eye of a needle!

You can make your own eclipse projector using a cardboard box, a sheet of white paper, tape, scissors and aluminum foil. With the sun behind you, sunlight passes through a pinhole in aluminum foil taped to a hole in one side of the box. During the partial phases of a solar eclipse, it projects a crescent of the sun onto a sheet of white paper taped to the inside of the box. Look inside the box through another hole cut in the box to see the projected image. Credit: NASA

Do not use eclipse glasses or handheld viewers with cameras, binoculars, or telescopes. They require different types of solar filters. You do not need to wear eclipse glasses when viewing the partial phases of a lunar eclipse through cameras, binoculars, or telescopes equipped with appropriate solar filters. (Solar filters work like eclipse glasses to protect your eyes.)

A woman looks at the sun through binoculars equipped with solar filters. Binoculars and telescopes can only be used to look at the sun when they are used with solar filters designed specifically for this purpose. Credit: NASA/Ryan Milligan

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Consult an astronomer before using a solar filter with a camera, telescope, binoculars or any other optical device. Note that solar filters must be attached to the front of any telescope, binoculars, camera lens, or other optics.

You can use eclipse glasses to safely view the Sun during the partial eclipse phases of an eclipse, before and after totality. Credit: NASA/Mamta Patel Nagaraja

This composite of eleven images shows the progress of a total solar eclipse over Madras, Oregon, on August 21, 2017. Credit: NASA/Abri Geminiani

Even during a partial or annular lunar eclipse, or during partial phases of a total eclipse, the Sun will be very bright. If you are watching a total lunar eclipse, you may be in direct sunlight for hours. Remember to use sunscreen, a hat and protective clothing to prevent skin damage.

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A total solar eclipse will darken parts of North America as the moon blocks the sun for a few minutes on April 8, 2024. An eclipse gives scientists a unique opportunity to study the Sun, Earth and their interactions.

On April 20, a first-of-its-kind NASA-funded experiment will fly a science instrument on a large kite to study a total solar eclipse. Taking off from Australia, the experiment aims to climb above clouds that might block the instrument’s view of the sun’s outer atmosphere, the corona.

To celebrate the eclipse’s special role in bridging art and science, creatives across NASA will share their eclipse-inspired artwork in anticipation of the two solar eclipses that will pass over the United States on October 14, 2023 and April 8, 2024. put.

Based on observations from several NASA missions, this map details the path of the moon’s shadow as it crosses the United States during the 2023 and 2024 lunar eclipses.

When Is The Next Solar Eclipse?

This is the largest and highest frame rate observation of the Phobos eclipse ever taken from the surface of Mars.

On April 30, 2022, a partial solar eclipse will be visible in parts of South America, Antarctica, and the Pacific and Southern Oceans.

For more than a century, scientists have used total solar eclipses to learn more about our universe, including deciphering the structure of the Sun.

When Chile and Argentina witnessed a total solar eclipse on December 14, 2020, a tiny speck was passing by the sun – a recently discovered comet.

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August 21, 2017, was a unique opportunity for scientists in the United States—for the first time in nearly a century, a total solar eclipse will cover coast to coast, providing scientists with a rare opportunity to track totality. to study Sun and Earth in unusual ways. On Monday, August 21, 2017, all of North America will experience a solar eclipse. Anyone in the path of totality will be able to see one of nature’s most amazing sights – a total solar eclipse. The path, where the moon completely covers the sun and the sun’s faint atmosphere – the corona – can be seen, will stretch from Lincoln Beach, Oregon to Charleston, South Carolina. Observers outside this path will still see a partial solar eclipse during that month covering part of the Sun’s disk.

Figure 1 – In this series of photos from 2013, the eclipse sequence runs from right to left. The central image shows the whole. On both sides of the second contact (right) and the third contact (diamond rings on the left, which mark the beginning and end of the whole, respectively).

Many people! Everyone in the United States, in fact, North America plus parts of South America, Africa and Europe will see at least a partial solar eclipse, while the thin path of totality will pass through parts of 14 states.

Figure 2 – This map shows the Earth’s view of the path of totality for the August 21, 2017 total solar eclipse. You can find more information at:

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This celestial event is a solar eclipse in which the Moon passes between the Sun and the Earth, blocking all or part of the Sun from a specific location for about three hours, from start to finish. For this eclipse, the longest period of time when the Moon completely blocks the Sun from any given location along the path will be about two minutes and 40 seconds. The last time the United States saw a total lunar eclipse was in 1979.

Figure 3 – Earth-Sun-Moon geometry diagram showing a total solar eclipse. Not to scale: If drawn to scale, the moon would be 30 Earth diameters away from us. The sun will be 400 times this distance.

You can see a partial eclipse, where the moon covers only part of the sun, anywhere in North America (see “Who can see it?”). To see a total eclipse, where the moon completely covers the sun for a few minutes, you need to be in the path of totality. The path of totality is a relatively thin strip about 70 miles wide that crosses the United States from west to east. First port of call will be in Lincoln Beach, Oregon at 9:05 AM PDT. Total starts there at 10:16 am local time. Over the next hour and a half, it will pass through Oregon, Idaho, Wyoming, Montana, Nebraska, Iowa, Kansas, Missouri, Illinois, Kentucky, Tennessee, Georgia, and North and South Carolina. The total eclipse will end near Charleston, South Carolina at 2:48 p.m. EDT. From there, the moon’s shadow leaves the United States at 4:09 a.m. EDT. The longest will be near Carbondale, Illinois, where the sun will be completely obscured for two minutes and 40 seconds.

Figure 4 – A map of the United States showing the general path for the August 21, 2017 total solar eclipse.

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The timing of partial and total eclipse phases varies depending on your location. This interactive eclipse map shows you the partial and total eclipse times at each location

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