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  2. How Big is the Earth? | Size Comparison, Actual Size & Facts

    nineplanets.org/questions/how-big-is-the-earth

    The Earth has a radius of 2.439 kilometers / 1.516 miles and a diameter of only 12.742 km / 7.917 mi. When it comes to weight, the mass of Earth is equivalent to 5.9 quadrillion kg. In the Solar System, our Earth is the fifth largest planet and the largest of the terrestrial planets.

  3. How Big is Jupiter? | Size Comparison, Actual Size & Facts

    nineplanets.org/questions/how-big-is-jupiter

    Well, Jupiter has a diameter of around 142.984 km / 88.846 mi at the equator, and a diameter of about 133.708 km / 83.082 mi at the poles. It has a mean radius of 69.911 km / 43.440 mi, and its mass is equivalent to 318 Earth masses. Jupiter has more than 11 times the diameter of Earth. Some scientists estimated that if Jupiter were more than ...

  4. How Big is the Moon in Comparison to Earth? - The Nine Planets

    nineplanets.org/questions/how-big-is-the-moon

    The largest moon in the Solar System, namely Ganymede, has a diameter of around 1.51 times that of our Moons. The Moon is located at about 384,400 kilometers / 238,855 miles away from Earth, or 1.29 light-seconds. The Moon is 384,400,000 meters away from us, while in inches, the Moon is 15.13 billion inches away from Earth.

  5. What is the circumference of the earth in meters? - Answers

    www.answers.com/physics/What_is_the_circumference_of_the_earth_in_meters

    The earth circumference is on average 40041.47 km : 40075.02 KM at the equator and 40,007.86 km by meridian length (polar circumference). AnswerBot. ∙ 5mo ago. The circumference of the Earth is ...

  6. How Big is the Sun? | Comparisons, What Is Bigger, Facts - The...

    nineplanets.org/questions/how-big-is-the-sun

    More than one million Earths could fit inside the Sun if it were hollow. The Sun has a radius of 696.340 km / 432.685 mi and a diameter of 1.39 million km / 864.000 mi. Earth, for comparison, has a radius of only 2.439 km / 1.516 mi, and a diameter of just 12.742 km / 7.917 mi.

  7. How big is earth in meters? - Answers

    www.answers.com/earth-science/How_big_is_earth_in_meters

    If the sun is 1.26 meters how big is the earth? This is a simple algebra problem. The Sun has a diameter of 1,390,000 km, and the Earth has a diameter of 12,756 km.

  8. How Big is the Universe? | Size, Why So Big, Infinite & Facts

    nineplanets.org/questions/how-big-is-the-universe

    The Universe is so big because it is constantly expanding, and it does so at a speed that even exceeds the speed of light. Space itself is actually growing, and this is going on for around 14 billion years or so. In this amount of time, with speed greater than the speed of light, the Universe gradually grew, and it still expands even to this day.

  9. How many miles around the Earth? - The Nine Planets

    nineplanets.org/questions/how-many-miles-around-the-earth

    The short answer is around 24.901 miles. The mean radius of Earth is at around 3.958 mi / 6.371 km, slightly larger than Venus, almost twice the radius of Mars and about three times that of Mercury. If you started walking from one end to the other, you would have to cover more than 24.901 mi / 40.075 km. However, things are more complicated ...

  10. How Far is the Sun From Earth? | Distance, KM, Time Takes & Facts

    nineplanets.org/questions/how-far-is-the-sun-from-earth

    If we were to speak in meters, then the Sun would be 150.4 billion meters away from Earth. The Earth orbits the Sun once every 365.3 days, while farther planets such as Mars, completes an orbit around the Sun in 687 days. For comparison, Mars is 1.5 AU away from the Sun, which would translate to 227.94 million km / 141.70 million mi.

  11. Neptune has a radius of 15.387 miles or 24.764 kilometers, about four times wider than Earth, and a diameter of 49.244 km or 30.598 mi being the fourth largest planet of the solar system. Neptune and Uranus are termed as ice giants because they are smaller and have different compositionality from the gas giants Jupiter and Saturn.