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Re: (IAAC) Obj: NGC 2438 - Inst: 8" f/6 Dobsonian



----- Original Message -----
From: anonymous NFS user <nobody@web.tiac.net>
To: Internet Amateur Astronomers Catalog <netastrocatalog@jovian.com>
Sent: Sunday, February 13, 2000 8:03 AM
Subject: (IAAC) Obj: NGC 2438 - Inst: 8" f/6 Dobsonian
> ----
>
> Observer: Michael Geldorp
> Your skills: Intermediate (some years)
> Date/time of observation: 2/10/2000  23.15 UT
> Location of site: Alphen ad Rijn, Netherlands (Lat 52*N, Elev )
> Site classification: Suburban
> Sky darkness: 4.5 <Limiting magnitude>
> Seeing: II <I-V Seeing Scale (I best)>
> Moon presence: None - moon not in sky
> Instrument: 8"  f/6 Dobsonian
> Magnification: 49X, 98X, 203X, 244X
> Filter(s): OIII
> Object(s): NGC 2438
> Category: Planetary nebula.
> Class:
> Constellation: Mon
> Data: mag 10.8  size 66"
> Position: RA 07:41  DEC -14:44
> Description:
> Not visible without an OIII in my scope, putting in the filter imediately
made
> the nebula apparent. Round and featureless planetary at 98X and 203X.
>
> I suspected a star embedded in the nebula although this is not the centraL
star
> as that is much too faint to be seen in my 8".
>
> The stars of M46 are considerably dimmed by the OIII filter, making the
nebula
> easy to pick out of the cluster.
>
> There is a sketch on this object on my homepage: URL mentioned below.
> --
> Optional related URLs: http://home.wxs.nl/~geldo006/home.html
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