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Mars is the fourth planet from the Sun and averages about 1.524 AU, or 228 million kilometers, from it.
Mars is the fourth planet from the Sun, orbiting at an average distance of about 1.524 astronomical units (228 million kilometers). Its orbit is moderately eccentric, ranging from approximately 206.7 million kilometers at perihelion to 249.3 million kilometers at aphelion. Mars completes one orbit in about 687 Earth days, or 1.88 Earth years, and has two small natural satellites, Phobos and Deimos. Mars is a rocky, desert-like planet known as the "Red Planet" because iron-rich minerals on its surface produce its orange-red color. It has a mean diameter of about 6,779 kilometers, roughly half that of Earth, and a surface gravity about 38% as strong as Earth's. Its thin atmosphere is composed primarily of carbon dioxide, with surface pressure less than 1% of Earth's. Mars rotates once every approximately 24 hours and 39 minutes, and its axial tilt of about 25 degrees produces Earth-like seasons. Surface temperatures vary widely, and the planet retains water mainly as underground ice, atmospheric vapor, permafrost, and polar ice caps.
Mars is the fourth planet from the Sun and averages about 1.524 AU, or 228 million kilometers, from it.
Its orbital period is about 687 Earth days, while a Martian solar day, or sol, lasts approximately 24 hours and 39 minutes.
Mars is a rocky terrestrial planet with a mean diameter of about 6,779 kilometers and a mass approximately 10.7% that of Earth.
Its surface gravity is about 38% of Earth's, and its thin atmosphere is composed mainly of carbon dioxide.
Mars has an axial tilt of approximately 25 degrees, causing seasonal changes, and it has two moons: Phobos and Deimos.
The planet's red appearance is caused primarily by iron oxide minerals in its surface dust and rocks.
The fourth planet from the Sun and a rocky, desert-like world commonly called the Red Planet.
A unit of distance equal to the average distance between Earth and the Sun.
The point in Mars's orbit at which it is closest to the Sun.
The point in Mars's orbit at which it is farthest from the Sun.
A Martian solar day, lasting approximately 24 hours and 39 minutes.
The angle between a planet's rotational axis and the perpendicular to its orbital plane, producing seasons on Mars.
The thin gaseous envelope surrounding Mars, composed primarily of carbon dioxide.
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