[dr_lew]

Looked this up in the Cambridge Encyclopedia of Astronomy, 1977. ( IIRC, I bought this at the Atlantic Bookshop on the boardwalk at Ocean City NJ, probably in the 80's . )

Here's an illustration from pg. 293 ( 4" X 4" on the page. ) Note the credit.

I was having trouble matching this up for two reasons. The image is reversed in the book, and represents only the core of the nebula, so the stars seen are not the bright ones in the APOD. Here is an overlay with most of the stars matching up very well:

Oh, brave new world!

[SunkenCiv]

Thanks!