JHK Color image of M 2-9
Planetary Nebula M 2-9 ("The Butterfly")
Near-infrared ``true color'' image of the planetary nebula
M 2-9, a star in its final stages of evolution. Broadband J,
H, and K (1.2, 1.6, 2.2 microns) are plotted as blue, green,
and red, respectively. This image shows clearly a
resolved photodissociation region in the lobes of the
nebula. The inner walls of the nebula and the N and S knots
are blue and dominated by emission
from Paschen Beta hydrogen line. The outer walls are red from strong
molecular hydrogen line emission in the K-band.
These data were acquired with the U. Hawaii 2.2
meter telescope on Mauna Kea (Hora, J. L., and Latter,
W. B. 1994, ApJ, 437, 281).
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Last modified 1998 September 9