Chronic disease is disease that persists over a long period of time. Chronic disease can hinder independence and the health of people with disabilities, as it may create additional activity limitations.hronic disease is disease that persists over a long period of time. Chronic disease can hinder independence and the health of people with disabilities, as it may create additional activity limitations.
Since the moon's orbit is elliptical (oval-shaped), its distance varies from about 221,463 miles (356,334 kilometers) at perigee (closest approach to Earth) to 251,968 miles (405,503 kilometers) at apogee (farthest point). The average distance from the moon to the Earth is 238,857 miles (384,392 kilometers).
The Earth's Moon is the fifth largest in the whole solar system, and is bigger than the planet Pluto. The Moon has a nearly circular orbit (e=0.05) which is tilted about 5 to the plane of the Earth's orbit. Its average distance from the Earth is 384,400 km.The combination of the Moon's size and its distance from the Earth causes the Moon to appear the same size in the sky as the Sun, which is one reason we can have total solar eclipses. The Earth with its moon, as seen from space.ts average distance from the Earth is 384,400 km. The combination of the Moon's size and its distance from the Earth causes the Moon to appear the same size in the sky as the Sun, which is one reason we can have total solar eclipses. The Earth with its moon, as seen from space.