![]() ![]() The Sun is a very large light source, its diameter exceeding that of both the Earth and the Moon. Our solar system resembles the set-up of the last experiment. You have just entered the basketball's antumbra. A ring of light will appear around the ball as the outer rim of the lamp comes into view. At some point, the basketball will appear smaller than the lamp. However, as you move away from the ball, its apparent size decreases. You are within the umbra, and the lamp is invisible. As long as you are fairly close to it, the ball's apparent size exceeds the lamp's apparent size. Imagine once more that you are looking at the lamp from behind the ball. In this experiment, the light source is another round lamp, but this time it has twice the ball's diameter. Rule: If the diameter of the light source is larger than the diameter of the object, a 3rd type of shadow appears where the cone-shaped umbra ends: the antumbra. If the diameter of the light source exceeds that of the object, an antumbra appears. ![]() You are standing on the side of the ball exactly opposite to the light source, facing it, so the order is: light source – basketball – you. Both the light source and the basketball are at the same height as your head. So imagine that you are in a windowless room with 1 light source and 1 round object that casts a shadow, say, a basketball. However, their absolute size is irrelevant, so a basketball illuminated by a large lamp produces the same shadows as the Moon illuminated by the Sun. The number and types of shadows created by an opaque object depend on its size in relation to the size of the light source. ![]() To understand why the Earth and the Moon have 3 types of shadows, let's start on a smaller scale. The umbra is the shadow's dark center portion, while the penumbra and the antumbra are different types of half-shadows. The type of eclipse we experience depends on the type of shadow that is involved. A solar eclipse may be total, partial, or annular a lunar eclipse may be total, partial, or penumbral. However, there are different types of solar and lunar eclipses. If the Moon's shadow falls on Earth, we get to see a solar eclipse the Earth's shadow falling on the Moon results in a lunar eclipse. The Moon's umbra, penumbra, and antumbra. Business Date to Date (exclude holidays).These examples are programmatically compiled from various online sources to illustrate current usage of the word 'eclipse.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. 2023 The number is expected to eclipse 115,000 people by 2030 - an increase of 17 percent. How To Save A Country, The New Republic, 13 Apr. 2023 That can sometimes even eclipse their own economic concerns. Joe Drape, New York Times, Hurts deal also means his average new salary will be $51 million per year, eclipsing Aaron Rogers’ $49 million per season as the highest in the NFL. Whitney Shefte, Washington Post, But their accomplishments were eclipsed by the death of seven horses at Churchill Downs in the lead-up to the Derby. Paul Gattis | al, That figure would eclipse the total number of similar arrests in the past two years combined - a stunning increase in a county that previously had only a handful of jury trials. Kevin Paul Dupont,, The first phase of Front Row is a $325 million development that will consume the entirety of the 11-acre site where the Coca-Cola bottling plant once stood and will eventually eclipse $400 million in capital investment once the second and final phase is complete. Taylor Crumpton,, Our quaint brick and brownstone townhouses became eclipsed by towers of steel and glass. Verb Their popularity eclipsed the contributions of Black women in rock. 20 eclipse will be the United States’ last coast-to-coast total solar eclipse this century. Rachel Fradette, The Indianapolis Star, 9 Apr. 2023 More on the eclipse events at IMS will be shared in the next year. Jenna Prestininzi, Detroit Free Press, 12 Apr. 2023 The most recent such eclipse occurred in 2017, passing through parts of metro Detroit. 2023 Areas across the Asia-Pacific region could see a partial eclipse. Jacqueline Tempera, Women's Health, 30 Apr. Dossé-via,, The full moon and eclipse in Scorpio on the 5th put even more of an emphasis on your health and well-being. Garrett, Dallas News, After a tumultuous era of eclipses and a healing Taurus New Moon, the cosmic climate significantly lightens up this week. Gary Klein, Los Angeles Times, 6 June 2023 The new budget eclipses $300 billion for the first time. Noun That eclipses star defensive lineman Aaron Donald, who has a $26-million cap number, and quarterback Matthew Stafford ($20 million). ![]()
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