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5 godz. temu · For the purpose of measurement, the Sun's radius is considered to be the distance from its center to the edge of the photosphere, the apparent visible surface of the Sun. By this measure, the Sun is a near-perfect sphere with an oblateness estimated at 9 millionths, which means that its polar diameter differs from its equatorial diameter by ...
5 godz. temu · The distance the light from the edge of the observable universe has traveled is very close to the age of the universe times the speed of light, 13.8 billion light-years (4.2 × 10 ^ 9 pc), but this does not represent the distance at any given time because the edge of the observable universe and the Earth have since moved further apart.
5 godz. temu · The Moon is Earth's only natural satellite.It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have over time synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth. . The Moon's gravitational pull – and to a ...
5 godz. temu · Chongqing is a municipality in Southwestern China.Chongqing is one of the four direct-administered municipalities under the Central People's Government, along with Beijing, Shanghai, and Tianjin.It is the only directly administrated municipality located deep inland. The municipality covers a large geographical area roughly the size of Austria, which includes several disjunct urban areas in ...
1 dzień temu · Billings is the most populous city in the U.S. state of Montana, with a population of 117,116 as of the 2020 census. Located in the south-central portion of the state, it is the seat of Yellowstone County and the principal city of the Billings Metropolitan Area, which had a population of 184,167 in the 2020 census. With one of the largest trade areas in the United States, Billings is the trade ...
1 dzień temu · Oakland is a city in the San Francisco Bay Area in the U.S. state of California.It is the seat and most populous city in Alameda County, with a population of 440,646 in 2020. A major West Coast port, Oakland is the most populous city in the East Bay region of the San Francisco Bay Area, the third most populous city in the Bay Area, and the eighth most populous city in California.
1 dzień temu · Riverside is a city in and the county seat of Riverside County, California, United States, in the Inland Empire metropolitan area. It is named for its location beside the Santa Ana River. It is the most populous city in the Inland Empire and in Riverside County, and is about 50 miles (80 km) southeast of downtown Los Angeles.It is also part of the Greater Los Angeles area.
