UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
What is the approximated distance that the earth is approaching the sun each day, week, month, year or other method of measurement used scientifically?
Question Date: 2014-02-01
Answer 1:

The earth is not approaching the Sun. The earth moves around (orbits) the Sun and moves on a slightly elliptical orbit. The mean distance between Earth and Sun is 1.5x1011 meters or one Astronomical Unit. The speed of the Earth around the Sun on this orbit is about 30 km/second. The Earth is closest to the Sun on Jan 3rd and furthest from the Sun on July 4th, currently. The time of the year of perihelion and aphelion varies as a slowly (geologic time) function of time on.

Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use