What is the diameter of the sun approximately?
Radius, diameter & circumference The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1.392 million km). You could line up 109 Earths across the face of the sun. The sun’s circumference is about 2,713,406 miles (4,366,813 km).
What is the approximate of the sun?
1.392 million kilometers
What is Earth’s diameter in scientific notation?
How was the Earth diameter measured?
In the third century BCE , Eratosthenes, a Greek librarian in Alexandria , Egypt , determined the earth’s circumference to be 40,250 to 45,900 kilometers (25,000 to 28,500 miles) by comparing the Sun’s relative position at two different locations on the earth’s surface.
What is Mercury’s mass and diameter?
Size, Mass, and Density Mercury is the smallest planet in both mass and diameter. It is about 18 times less massive than Earth. With a diameter of about 3,032 miles (4,879 kilometers), Mercury is not quite two fifths the size of Earth. It is only about a third larger than Earth’s Moon.
How did Mercury gets its name?
Mercury is named after the messenger for their gods. The Roman Mercury had wings on his helmet and shoes. The planet Mercury moves quickly around the sun. That is how it got its name.
How old is the Mercury?
4.503 billion years
Which is bigger Mercury or the moon?
The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth’s Moon.
Is Earth older than Mercury?
Is it the oldest planet, or the youngest? Actually, you might be surprised to know that there is no oldest or youngest planet. Mercury is exactly the same age as all the rest of the planets in the Solar System: approximately 4.6 billion years old.
How old is the youngest planet?
around 2 million years
What planet is most interesting?
The best planet is Uranus—Uranus the bizarre. Uranus the unique. Saturn may be flashy and pretty, and Jupiter may be huge and dramatic, but they can’t hold a candle to Uranus’s intrigue. While all the other planets spin like tops around the sun, Uranus lies on its side.
What is the oldest planet in the galaxy?
At 12.7 billion years old, planet Psr B1620-26 B is almost three times the age of Earth, which formed some 4.5 billion years ago. This exoplanet, the oldest ever detected in our Milky Way galaxy, has been nicknamed “Methuselah” or the “Genesis planet” on account of its extreme old age.
What are the youngest stars?
If proven, the newly discovered neutron star will be the youngest one known by humanity, beating the current youngest supernova remnant is Cassiopeia A, which is 330 years old that can be found 11,000 light-years away from Earth and can be found within our galaxy.
What do stars colors mean?
The color of a star is linked to its surface temperature. The hotter the star, the shorter the wavelength of light it will emit. The hottest ones are blue or blue-white, which are shorter wavelengths of light. Cooler ones are red or red-brown, which are longer wavelengths.