Page:Popular Science Monthly Volume 87.djvu/231

From Wikisource

Jump to navigation Jump to search

This page has been validated.

Fig. 7a. Planetary Nebula, N. G. C. 2.392. Photographed at the Lick Observatory.

Fig. 7b. Planetary Nebula, N. G. C. 40. Photographed at the Lick Observatory.

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:Popular_Science_Monthly_Volume_87.djvu/231&oldid=7421685"

Validated