Jyotish comes from two Sanskrit words, jyoti, meaning light, and ishta, meaning a Divinity.
One may take one’s ishta devata or personage of Divinity to in fact be the Jyotir Vidya or knowledge of light itself.
This would not be too obscure for many theoretical physicists in our midst.
Astrologers were society’s astronomers once, and with a tweak of the lens of discrimination/definition, can still be considered so