How does the angular size of the solar disk change during the year when observed from the Earth?

The size of the Sun’s disk changes throughout the year due to the movement of the earth in an elliptical orbit. It will be maximum when the Earth passes perihelion – the closest point in its orbit in relation to the Sun and will be minimum – at the greatest distance from the Sun – at aphelion. Thus, the angular disk of the Sun has a maximum size on January 3 (32´) and a minimum on June 2 (29´).

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