20181207_46pwirtanen_stack_b1

Published by John A. Blackwell

Director of Phillips Exeter Academy Grainger Observatory, research astronomer, astronomy & education consultant. View all posts by John A. Blackwell

December 8, 2018

Post navigation

20181207_46pwirtanen_stack_b1

Comments are closed.

About & Copyright Notice

Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy

John A. Blackwell, B.S., M.S., F.R.A.S.

John A. Blackwell, B.S., M.S., F.R.A.S.

Up ↑