To convert kilometers to astronomical units (AU), use the conversion factor:

\[
1 \, \text{AU} = 1.496 \times 10^8 \, \text{km}
\]

Given that \( 1.43 \times 10^9 \, \text{km} \) needs to be converted:

\[
\frac{1.43 \times 10^9 \, \text{km}}{1.496 \times 10^8 \, \text{km/AU}} \approx 9.56 \, \text{AU}
\]

So, \( 1.43 \times 10^9 \, \text{km} \) is approximately 9.56 AU.

Would you like more details or have any questions?

Here are some related questions:
1. How do you convert AU to light years?
2. What is the average distance between the Earth and the Sun in AU?
3. Can AU be used for measuring distances within the solar system?
4. How is the value of 1 AU determined?
5. What is the distance from the Sun to Pluto in AU?

**Tip:** Always ensure the units cancel out correctly in conversions to avoid mistakes.

Convert 1.43 x 10^9 km to AU with a step-by-step guide using the astronomical unit conversion factor. Learn how 1 AU equals 1.496 x 10^8 km, and use scientific notation to simplify calculations. Suitable for high school students in Grades 9-12.

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