Greatest surface temperature range for a planet
- Who
- Mercury
- What
- 600 degree(s) Celsius
- Where
- Not Applicable
- When
- 01 January 0001
Mercury, the smallest major planet in the Solar System at 4,879 km (3,031 miles) across, is the closest planet to the Sun and has the greatest temperature range, from 427°C (800.6°F) under the scorching Sun, down to -173°C (-279.4°F) during the Mercurian night.