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This year, humans on Earth will experience four eclipses: two of the sun and two of the moon. The first is a solar eclipse that will occur on Saturday.
Interestingly, this Partial solar eclipse on April 30 It will include the second of two new moons in April, what is known colloquially as “Black moon. “
During this next solar eclipsedark shadow cone the moonwhere a total eclipse can be seen, You will absolutely miss EarthAnd It passes about 750 miles (1,200 kilometers) below the South Pole.
But the Moon’s outer shadow, or penumbra, will remove part of the Southern Hemisphere, resulting in a partial eclipse that will be visible near sunset across a patch of the South Pacific and Southern Oceans, as well as in the southern and western parts of the South. America, including Chile, Argentina, Uruguay, southern Peru, southern Bolivia, western Paraguay and a small slice of Brazil.
Related: How to watch the April 2022 solar eclipse online
The greatest eclipse, or the moment when the axis of the moon’s shadow cone is closest to the center of the Earth, will occur over the Southern Ocean (See the green star), 300 miles (480 km) northwest of Yelshaw Base, a Chilean Antarctic research base on South Bay, Dhumer Island.
A ship or fishing vessel near this spot will see that the sun barely scans the horizon between west and northwest, with nearly two-thirds of its diameter (63.96%) hidden behind the moon. Usually thick fog on the horizon can thin and turn red the sunLight, giving it the appearance of a slice of cantaloupe. Unfortunately, no part of this eclipse will be visible from the northern hemisphere.
However, you can prepare for the next solar eclipse with our guide How to photograph a solar eclipse safely. Our guides to The best cameras for astrophotography and the Best lenses for astrophotography It can help you choose the best suitable equipment for you to capture on camera.
Solar Eclipse Photography Guide:
Below is a view of the conditions I calculated, courtesy of Fred Espenak Eclipsewise.com Website – for selected cities in South America within the eclipse viewing area. Local times apply.
(Dashes indicate sunset and are not visible. Volume is the fraction of the sun’s diameter covered at a maximum. Opacity is how much the total area of the sun’s disk is covered.)
| city | Eclipse begins | Maximum | Magnitude | mystery | sunset |
| Santiago | 4:32 pm | 5:36 pm | 0.41 | 29% | 6:03 pm |
| Oshoala | 4:46 pm | 5:57 PM | 0.62 | 52% | 6:08 pm |
| Asuncion | 5:12 PM | – | – | – | 5:22 pm |
| La Paz | 5:38 pm | 6:01 pm | 0.05 | .01% | 6:15 pm |
| Buenos Aires | 5:42 pm | – | – | – | 6:12 PM |
| Montevideo | 5:43 pm | – | – | – | 6:03 pm |
The mechanics of a solar eclipse
A solar eclipse can only occur in the new moon phase, when the sun, moon and earth are positioned in a straight line. However, the Moon’s orbit is slightly far from the Earth’s orbital plane (called ecliptic) by just over 5 degrees. This means that, most often, when the moon reaches a new moon phase, passes either above or directly below the sun; Thus, no eclipse can occur.
The point at which the orbital planes of the Earth and the Moon are called knots. If the moon is new when it reaches the decadal transit point, a solar eclipse will occur. If the Moon reaches a node within several hours of a new phase, the Sun, Moon and Earth will align so that the Moon appears to pass directly in front of the Sun, resulting in a “central” solar eclipse. Depending on the distances of the Moon to Earth and Earth to the Sun, the resulting eclipse will be either total or annular (annular).
However, in the event of the next solar eclipse on April 30, the moon will reach a new phase 23 hours and 26 minutes before it reaches the node. This is too far to allow the Moon to pass directly in front of the Sun, but still close enough to allow the Moon, at least, to cover part of the Sun.
be cerfull…
If you find yourself in a viewing area for this or any other solar eclipse: Do not look directly at the sun!
Some Safety tips for watching the solar eclipse:
- Show the image of the sun through a pinhole cameraor through binoculars or a telescope, on a piece of white cardboard or similar colored paper and watch the “shadow” of the sun on the paper.
- Show the sun for short periods by specially madeEclipse glassesBut still, be careful when doing so.
- Look at the sun for short periods of time through No. 13 glass or No. 14 welding glass; This would also appear to turn the sun into a green shade.
- Do not look at the sun through smoked glass, cross-polarizing filters, or tinted water. It may appear to dim the sunlight, but the invisible infrared sunlight will continue to pass through.
- Don’t look through a telescope, even with a specialized filter, unless you really know what you’re doing. Any filter you may use should be placed on the front, not behind the eyepiece.
More safety tips It can be found here.
Coming attraction
On October 25, the second solar eclipse of 2022 will occur. As in April, this eclipse will be a partial eclipse, but this time the semi-light shadow of the moon will fall on the northern hemisphere.
The event will be visible from northern and eastern parts of Africa, most of Europe (except southern Spain and Portugal), the Middle East, the Indian subcontinent, and part of northern and western Russia. The largest eclipse will occur over Russia, when the moon covers 86% of the diameter of the sun.
The year 2023 will see two solar eclipses, but they will be central. On April 20, 2023, a “mixed” eclipse, i.e. an eclipse that begins as an annular, then moves to the whole, and then returns to an annular shape before the end, will be visible from the Indian Ocean, far western Australia, New Guinea and the Pacific Ocean.
On October 14, 2023, an annular solar eclipse will sweep from the Pacific coast of Oregon to the coast of the Gulf of Texas. The annular route will also pass through the Mexican Yucatan Peninsula through Central America and through the northern parts of South America. Most of the rest of the Western Hemisphere will experience a partial eclipse.
Back in the upcoming solar eclipse, if you are among the nearly 100 million people in the South American eclipse viewing area, we wish you clear skies and safe viewing!
Joe Rao is a teacher and guest lecturer in New York Hayden Planetarium. He writes about astronomy for Journal of Natural HistoryThe Farmers’ calendar and other publications. Follow us on Twitter Tweet embed and on Facebook.
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