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-Moon L2 point is about 33,000 miles (60,000 km) beyond the far side of the Moon. Adding this to the average distance from the Earth to the Moon of about 239,000 miles gives a total distance of about 272,000 miles from Earth to the Earth-Moon Lagrange L2 point.