WebThe spaceship passes the Earth first and then a short while later passes the Moon. The distance between Earth and Moon as measured in the Earth-Moon frame is 1.20 light-seconds. A light-second (symbol: ls) is defined as the distance travelled by light in one Show transcribed image text Expert Answer Transcribed image text: Use in astronomy [ edit] The mean diameter of Earth is about 0.0425 light-seconds. The average distance between Earth and the Moon (the lunar distance) is about 1.282 light-seconds. The diameter of the Sun is about 4.643 light-seconds. The average distance between Earth and the Sun (the astronomical ... See more The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 299 792 458 metres … See more Communications signals on Earth rarely travel at precisely the speed of light in free space. Distances in fractions of a light-second are useful … See more • 100 megametres • Geometrized unit system • Light-year See more The light-second is a convenient unit for measuring distances in the inner Solar System, since it corresponds very closely to the radiometric data used to determine them. (The match … See more

Answered: Part A How much time does it take light

WebThe Moon is about 384,400 km from the Earth, or just about one light-second (the distance that light travels per second). The Moon is about {eq}4.063... See full answer below.... Web1 x 1.282194796531 ls = 1.282194796531 Light Seconds. Always check the results; rounding errors ... fmost checks

How far is the Moon in light years from Earth?

Webone light second = 3 108m = 300;000 km, one light FIG. 1: Celestial spheres of ancient cosmology. minute = 1:8 107 km, and one light year 1 ly = 9:46 1015 m ˇ1013 km: (1) For specifying distances to the Sun and the Moon, we usually use meters or kilometers, but we could specify them in terms of light. The Earth-Moon distance is WebThe lunar distance is on average approximately 385,000 km (239,000 mi), or 1.28 light-seconds; this is roughly 30 times Earth's diameter or 9.5 times Earth's circumference. A little less than 400 lunar distances make up an … WebAt apogee, the distance of the Moon from Earth is 406,300 km (252,463 mi). The average of these two distances gives the actual Lunar Distance, 384,400 km (238,855 mi). The time taken by light to travel this distance is 1.26 seconds. Lunar distance has some significance in astronomy. greens health foods lincoln