According to the U.S. National Aeronautics and Space Administration (NASA), the sun is roughly 26,000 light years from the center of the galaxy. Other sources, including Berkley University of California, estimate the distance to range between 25,000 light years to 30,000 light years.Know More
A light year is equal to the length travelled by light in one year which is approximately six trillion miles.
This distance can also be expressed as 8 kiloparsecs, which is the preferred unit that astronomers use. A parsec is equal to 3.26 light years. When used to express large distances, it is common to use kiloparsecs (1,000 parsecs) or megaparsecs (1 million parsecs).
The Milky Way galaxy measures about 30 kiloparsecs, or 100,000 light years, from end to end. The sun is located on the Sagittarius arm of the galaxy.Learn more about Our Sun
The U.S. National Aeronautics and Space Administration describes comets as consisting of a nucleus, coma and tail. Comets only have a tail and coma when they are close enough to the sun to heat up.Full Answer >
Ganymede is the largest moon of Jupiter, and it orbits the planet at an approximate distance of 665,115 miles, according to NASA. Jupiter orbits the Sun in an elliptical orbit, ranging from 460,237,112 at its closest approach to 507,040,015 miles away when it is at its most distant.Full Answer >
A solar radiometer is a device that accurately measures the sunlight's intensity, according to NASA. Simple mercury thermostats were used to measure sunlight many years ago, but these have been deemed untrustworthy.Full Answer >
Once the sun touches the horizon, it takes approximately 2 to 3 minutes to go below the horizon. This is dependent on several factors, including latitude, time of year and atmospheric thickness.Full Answer >