Mercury

Front

What is the orbital period of Mercury around the Sun?

Back

88 Earth days.

Front

Does Mercury have any moons?

Back

No, Mercury has 0 moons.

Front

How does the length of a day on Mercury compare to its year?

Back

1 day on Mercury lasts longer than a year on Mercury.

Front

What is the primary reason Mercury has extreme temperature variations?

Back

Mercury has no atmosphere to retain heat.

Front

What is the average distance of Mercury from the Sun?

Back

About 57.91 million kilometers (36 million miles).

Front

What is the surface temperature range on Mercury?

Back

From about -173°C at night to 427°C during the day.

Front

What is the composition of Mercury's core?

Back

Mercury has a large iron core, making up about 75% of its radius.

Front

What is the significance of Mercury's lack of atmosphere?

Back

It leads to extreme temperature fluctuations and no weather.

Front

How does Mercury's speed compare to other planets in the solar system?

Back

Mercury revolves around the Sun faster than any other planet.

Front

What is the tilt of Mercury's axis?

Back

Mercury has a very small axial tilt of about 0.034 degrees.