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(IAAC) Obj: NGC 3242 - Inst: 13" f/5.6 Newtonian, Bigfoot German mount



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Observer: Steve Coe
Your skills: Advanced (many years)
Date/time of observation: May 1995
Location of site: Sentinel, Arizona (Lat +32, Elev 1500)
Site classification: Rural
Sky darkness: 8/10 <1-10 Scale (10 best)>
Seeing: 8/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 13" f/5.6 Newtonian, Bigfoot German mount
Magnification: 100, 220, 440X
Filter(s): UHC
Object(s): NGC 3242
Category: Planetary nebula
Class: 
Constellation: Hya
Data: mag   size 
Position: RA :  DEC :
Description:
At 100X in the 13" this planetary is bright, pretty large, and little elongated
1.2X1 in PA 135 degree.  The central star comes and goes and the nebula is
light green or aqua in color.  Going to 220X brings out lots of detail within
the nebula.  At higher power it has always resembled "The CBS eye".  This is
from the fact that there are two rings of brighter nebulosity within the
disk of this planetary.  The central star is held steady on this excellent
evening.  The best view is at 440X, there are several bright knots in the
disk to the southeast of the central star, seen as bright spot within the
"CBS" oval.  High power lowers the color contrast so that the nebula is a
very light green, but it does bring out many fine details with the planetary,
including a narrow dark ring around the central star.  Using the UHC filter
at any of the higher powers makes the central star disappear and does not
seem to enhance the contrast of any of the details.
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