pierre2nice 213 Posted August 12, 2020 (edited) doublon ! Pierre Edited August 12, 2020 by pierre2nice doublon Share this post Link to post Share on other sites
Advertising By registering on Astrosurf, this type of ad will no longer be displayed. Planetary Astronomy Observing, imaging and studying the planets A comprehensive book about observing, imaging, and studying planets. It has been written by seven authors, all being skillful amateur observers in their respective domains. More information on www.planetary-astronomy.com
