1. The problem asks: Which season is the Northern Hemisphere experiencing at position 3 on the Earth's orbit around the Sun? 2. The Earth's orbit positions correspond to seasons as follows: - Position 1 (top): Northern Hemisphere summer (around June solstice) - Position 2 (left): Northern Hemisphere autumn (around September equinox) - Position 3 (bottom): Northern Hemisphere winter (around December solstice) - Position 4 (right): Northern Hemisphere spring (around March equinox) 3. Therefore, at position 3, the Northern Hemisphere is experiencing winter. 4. The formula or rule used here is the relationship between Earth's position in orbit and the tilt of its axis, which causes seasons: $$\text{Season} = \text{function of Earth's position relative to Sun and axial tilt}$$ 5. Since position 3 is at the bottom of the orbit, it corresponds to the December solstice, when the Northern Hemisphere is tilted away from the Sun, causing winter. Final answer: The Northern Hemisphere is experiencing **winter** at position 3.