Re: Ultra Dark-Adaptation?

AstroApp wrote:

I tend to fall on the side of arguing against this supposition. I
agree with Greg -- despite Tony Flanders' doubt -- that there are
nights with incredible atmospheric stillness and clarity, above and
beyond the norm.

Currently all options remain open. The stars (limiting stellar
magnitude) on that night appeared no better than my average. Yet,
certain objects: M31, M33, M81 (and M82), M45 nebulosity, NGC 1499,
and (maybe) Barnard's Loop were all noticeably better than normal.
Somewhere there's an explanation. Maybe it was the sky; but I'm not
convinced. I still suspect a physiological explanation. I'll try to
remember to do a bit of experimenting when I get enough cooperative
weather. . . It certainly would be nice to see more nights like that!

Finally, Bill: your website of drawings, and your blog, are both very
interesting and valuable. I've just added them to the short list of
links on my own site, which includes only a *few* very distinctive
amateur astronomical websites that I have been impressed by.

I do indeed feel honored! Thank you!
--
Bill
Celestial Journeys
http://cejour.blogspot.com
.