Here's CG4, a cometary
globule in Puppis. Cometary
globules bear superficial
resemblance to comets, as
least visually. They are
relatively small areas of
gas/dust in our Milky Way that
frequently give birth to stars.
This one takes the form of a
head/face, seen on profile, and
gives the impression that it is
preparing to "eat" nearby
galaxy PGC 21338 -- in reality,
of course, PGC 21338 is
merely near CG4 in terms of
RA/DEC; it is millions of
lightyears more distant.
16" RCOS @ f/11.3
Apogee U9 imager
SBIG 402 guider
Astrodon Series I LRGB

L(RHa)GB:

L=     
8 hours,1x1
R=    
 8 hours, 1x1
G=    
 3 hours, 1x1
B=    
 4 hours, 1x1

Data acquired at
CTIO

Processed with CCD
Inspector, PixInsight,
and Adobe PS.
                        CG4
      Click on image to enlarge