Orbital speed

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A topic known well beyond its field, found in many languages.

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Notion

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Science and technology

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What Wikipedia says

In gravitationally bound systems, the orbital speed of an astronomical body or object (e.g. planet, moon, artificial satellite, spacecraft, or star) is the speed at which it orbits around either the barycenter (the combined center of mass) or, if one body is much more massive than the other bodies of the system combined, its speed relative to the center of mass of the most massive body.

Excerpt from the Wikipedia article “Orbital speed”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: cmglee, CC BY-SA 3.0, via Wikimedia Commons.