(IAAC) Obj: NGC246 - Inst: 30CM/F:10 SCT/LX200


Observation Poster: Jim Andeson <madmoon@bellsouth.net>

Observer: Jim Andeson
Your skills: Intermediate (some years)
Date/time of observation: 12222000-1949EST
Location of site: Phelps Lake, NC (Lat 35:44, Elev 20')
Site classification: Rural
Sky darkness: 7-8/10 <1-10 Scale (10 best)>
Seeing: 3-4/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 30CM/F:10 SCT/LX200
Magnification: 55X,117X, 138.5X, 203X, 254X, 314X
Filter(s): UHC, O-III
Object(s): NGC246
Category: Planetary nebula.
Constellation: Cet
Data: mag 11.5v  size 225"
Position: RA 00:47.0  DEC -12:07
117X - Faint disk with a few stars scattered about with a prominant central

203X - A faint disk with a bright central star. A little motteling is seen and
some brighter knots are detected around the periphery. There is a star to the
northwest near the edge of the PN that may be illuminating a spot on the outer shell. The bright knot is appropriately located to be illuminated by the star,
assuming the star is actually near to the PN's outer shell. Including the C.S.
there are 3 relatively bright stars superimposed on the PN's disk. There are
wisp of nebular material showing on the disk, but it is mostly dark except
around the outer edge. The detail is easily visable during moments of steady
seeing. The O-III filter does not really help because of the relatively low surface brightness. It dims the PN below my visual threshold.
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