The Independence Day holiday weekend is approaching. NOAA’s national weather forecast requires afternoon temperatures to reach 90 degrees Fahrenheit (32 degrees Celsius) in most plateaus, mountains, southwestern deserts, and Pacific states. Record high temperatures above 100 degrees Fahrenheit (38 degrees Celsius) are expected in some of the six states.
In fact, on July 4, there were burning measurements of 101 degrees Fahrenheit (38 degrees Celsius) in Spokane, Washington, and 103 degrees Fahrenheit (39 degrees Celsius) in Bowers, Idaho, and Medford. Expected to be as hot as the plane, 108 degrees Fahrenheit (42 degrees Celsius) in Las Vegas, Oregon, 110 degrees Fahrenheit (43 degrees Celsius) in Palm Springs, California, 112 degrees Fahrenheit (43 degrees Celsius) in Lake Habas, Arizona. 44 degrees Celsius).
So, despite these three-digit temperatures, you may be surprised to find that our planet reaches apogee. The earth is the farthest from the sun, Monday, July 5th, Eastern Standard Time 6:27 pm (Pacific Daylight Saving Time 3:27 pm / Coordinated Universal Time 22:27). At that point, the distance between the Earth and the Sun is 94,510,886 miles (152,100,527 kilometers) measured from center to center. ..
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How far is the sun?
During this annual milestone, the Earth is 3,111,432 miles (5,007,364 km) away from the Sun than January 2, which was the closest perihelion to the Sun in 2021. 3.3% difference. There is a difference of nearly 7% in the radiant heat received by the earth.
If the Earth asks people which month is closest to the Sun, it’s probably June, July, or August. However, warm weather has nothing to do with the distance of the earth from the sun. With the Earth’s axis tilted 23.5 degrees, the sun is above the horizon at different times in different seasons. The tilt determines whether the sun’s rays hit the planet at a low angle or more directly.
At New York latitudes, the direct sunlight of the summer solstice on June 20 is about three times that of the winter solstice on December 21. The heat received by any region depends on the length of sunlight. And the angle of the sun on the horizon. Therefore, there are significant differences in the registered temperatures in different parts of the world. And because it takes time for our atmosphere to completely absorb the accumulated heat, there is a delay of about a month from the solstice to the hottest time of the year. Therefore, at temperate latitudes, the highest average temperature is recorded in late July, not late June.
When I attended Henry Brookner Junior High School # 101 in Bronx, Earth Science teacher Saul Schenberg said that such a difference warms up as we are farthest from the sun in July and closest to December. I told all of us that there is a tendency to cool winters and cool summers … at least in the Northern Hemisphere.
Still, the truth of the matter is that the large land dominance of the Northern Hemisphere works in reverse, and in fact tends to make winters colder and summers hotter!
Interestingly, the time the Earth is closest to and farthest from the Sun almost coincides with two important holidays. We are closest to the sun around New Year and farthest from the sun around Independence Day. In fact, depending on the year, perihelion dates can change from January 1st to January 5th, and perihelion dates can change from July 2nd to July 6th.
Joe Rao is an instructor and guest lecturer in New York. Hayden Planetarium..He is writing about astronomy Natural history magazine, Farmers Almanac And other publications. Follow us on twitter @Spacedotcom When Facebook..
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