# Question #578f9

We are actually closest to the sun on about the 3rd of January (called ‘perihelion’) and furthest from it 6 months later (called ‘aphelion’.) The difference amounts to about 3% of our orbital diameter, so in January we are $1.471 \times {10}^{11}$ m away and in June around $1.521 \times {10}^{11}$ m, in other words about 150 million kilometres or 93 million miles.