Respuesta :
The area of reaserch in which Kepler worked is the area of the retrograde motion of the sun.
Who is Kepler?
Kepler is most known for his popular laws that deal with the idea of planatary motion. There are three laws of planetary motion as described by Kepler.
Hence, the area of reaserch in which Kepler worked is the area of the retrograde motion of the sun.
Learn more about Kepler: https://brainly.com/question/1086445
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