Showing posts with label Hubble. Show all posts
Showing posts with label Hubble. Show all posts

Friday, June 11, 2010

Apogee, perigee


The Hubble Space Telescope is on an elliptical orbit:
perigee = 561 kilometers
apogee = 566 kilometers
But that is pretty dang close to a perfect circle. Eccentricity value is close to zero, too: 0.0003457. Nice.