Unverified50% confidenceFactExact time
One astronomical unit (AU) is defined as the average distance from Earth to the Sun, about 149.6 million kilometers; 8 astronomical units is approximately equal to the distance from Saturn to the Sun.
1
Sources
50%
Confidence
Long-term
Relevance
10/13/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe Sun is the closest star to Earth, at approximately 150 million kilometers, or 1 astronomical unit.72% similarUnverifiedThe Moon's diameter is approximately 1/400 that of the Sun, and the distance from the Moon to the Earth is also approximately 1/400 of the Sun-Earth distance, allowing the Moon's shadow to completely cover the solar disk.64% similarUnverifiedThe Parker Solar Probe reached a speed of approximately 430,000 miles per hour during its closest solar flyby, roughly 120 miles per second (200 kilometers per second)55% similarUnverifiedDue to limitations in measurement technology and errors in estimating the Earth's oblateness, the Earth's meridional circumference under the modern metric system is not strictly 40 million meters, but approximately 40,007,863 meters.55% similarUnverifiedThe shadow cast by the Moon's umbral cone on Earth's surface typically has a diameter of 100 to 270 kilometers and moves at approximately 1 kilometer per second.54% similar
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