Which of the following did galileo not observe through his telescope?

the rotation of the stars
phases of venus
the sun’s imperfections
the moon’s terrain

a. the rotation of the stars

Explanation:

Galileo Galilei was an Italian astronomer who lived at the end of the 16th and the beginning of the 17th century, during the Renaissance. He was the first astronomer in using the telescope to observe celestial bodies. Through his telescope, he observed the Moon's terrain, the Sun's imperfection, and the phases of Venus. All these observations were direct evidence that supported the Heliocentric model proposed by Copernicus.

One of the things that Galileo could not observe with his rudimentary telescope was the rotation of the stars, it is the fact that the stars rotate around their axis. It was not possible back then to directly see this event because telescopes lacked the necessary optical technology to observe this phenomenon.

it refers to race, i am pretty sure this was a popular term in nazi germany or something.