The horizontal parallax of Mars is 23 “. Determine the angular radius of the Earth as seen from Mars at this moment.

The angular radius of the Earth, observed from Mars, is numerically equal to its parallax at this moment, i.e. 23 “

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.