In this gallery, it is a privilege to display
some planetary nebula drawings and a diagram of PNe spectra contributed to this web site
by David Knisely, President of the Prairie Astronomy Club, Inc. of Lincoln, Nebraska.
David created these drawings from his observations using a software program titled
"DrHalo IV". Not only are these vivid and detailed representations, but
are very useful as observing aids for these four extraordinary planetaries:
| M76 - Little Dumbbell Nebula, Butterfly Nebula | NGC2392 - Eskimo Nebula | |
| NGC6543 - Cat's Eye Nebula (Updated 10/99 by D.K.) | NGC7009 - Saturn Nebula |
The diagram of Common Planetary Nebula
Spectral Lines was created and used by David in the 1998 Nebraska Star Party during a
presentation on Planetary Nebulae.
THANKS, DAVID!
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Planetary Nebulae Observer's Home Page
July 31,
1998