These pages are my intellectual property. You are free to copy and to
redistribute unmodified copies for non-commercial purposes without restriction
from me (but see below).
Any other use should be consistent with normal copyright law and your
See my home page if you need to contact me.
Many of the images herein are copyrighted:
Any use of these images must be with the permission of their owners only.
Antares and Rho Oph
- all images on Six Planetary Nebulae
I believe the remaining are in the public domain; any information to the contrary
would be appreciated.
Those with some legal expertise may wish to examine the extensive
Copyright Law Materials
from the Legal Information Institute
of the Cornell Law School.