RE: Evidence That the Earth Surrounds the Sun.

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Evidence That the Earth Surrounds the Sun.

in steemstem •  7 years ago 

Hi, I found some acronyms/abbreviations in this post. This is how they expand:

AcronymExplanation
SESFormerly Société Européenne des Satellites, comsat operator
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SES' is the angle that occurs between the star and the observer on earth due to the movement of the earth