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Re: (IAAC) Obj: IC418 - Inst: 20" f5 dobsonian



Andrew Murrell wrote:
> ----
>
> Observer: Andrew Murrell
> Your skills: Advanced (many years)
> Date/time of observation:
> Location of site: Ilford NSW Australia (Lat , Elev )
> Site classification: Rural
> Sky darkness: 6.5 <Limiting magnitude>
> Seeing: 7 <1-10 Seeing Scale (10 best)>
> Moon presence: None - moon not in sky
> Instrument: 20" f5 dobsonian
> Magnification: 160-350
> Filter(s): none
> Object(s): IC418
> Category: Planetary nebula.
> Class:
> Constellation: lepus
> Data: mag 9.3  size 12"
> Position: RA 05:27.5  DEC -12:42
> Description:
> IC418 is a compact planetary that appears quite unusual through a large scope.
> The planetary has a distinct red colour. The cluster appears to be about 30"
> diameter, and has a very bright central star at 10.17 magnitude. Direct vision
> gives the planetary an annular appearence and a pale crimson shading. Averted
> vision changes the view slightly as the planetary has an even surface brightness
> and appears to change clour to pale aqua. The central star dominates the view.
> The outer edge of the planetary is the brightestand the nebula is visible as a
> star in my 90mm finder. I did not use a filter to observe the planetary as I
> have found that it does not improve the view of the object. THIS is a MUST
> see planetary
Andrew,
I saw IC 418 for the first time at the 1995 Winter Star Party through Ed Boutwell's
filtered 24" Dob and was suitably impressed with its unique color and central star.
I fully concur that it is a must see.
Dave Mitsky
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