(IAAC) Obj: NGC 6543 - Inst: 15 inch Obsession f4,5

[Lewis J. Gramer]

Thank you again, Armin, for continuing to post these
detailed logs, of interesting objects! I myself was
particularly interested in NGC 6337 - during my many
visits to the nearby Bug Nebula, I don't recall ever
observing this bright, decent-sized PN before. :)

By the way, for objects like n6543, don't hesitate to
put a "common name" in the Object field of your log,
along with the NGC or other number. E.g., in this case,
if you want, you can submit a log for:
  Object: NGC 6543 (Cat's Eye Nebula)

That way, when other observers search on that common
name rather than the NGC number, they will still pull
up your fine observing log!

Clear skies (hope your monsoon are over for the year?)
And keep the great logs coming!

Lew Gramer


> -----Original Message-----
> From: netastrocatalog-announce-bounces at visualdeepsky.org
> [mailto:netastrocatalog-announce-bounces at visualdeepsky.org]
> On Behalf Of anonymous at sedna.atmob.org
> Sent: Tuesday, August 17, 2004 10:52 AM
> To: Internet Amateur Astronomers Catalog
> Subject: (IAAC) Obj: NGC 6543 - Inst: 15 inch Obsession f4,5
>
>
> ----
>
> Observation Poster: Armin Hermann <burmeseinn at yahoo.com>
>
> Observer: Armin Hermann
> Your skills: Advanced (many years)
> Date/time of observation: 16 Aug 2004
> Location of site: Sangkhlaburi, Thailand (Lat 15°N, Elev 200m)
> Site classification: Exurban
> Sky darkness: better 5mag <Limiting magnitude>
> Seeing: 9+ <1-10 Seeing Scale (10 best)>
> Moon presence: None - moon not in sky
> Instrument: 15 inch Obsession f4,5
> Magnification: 131 and 342x
> Filter(s): none
> Object(s): NGC 6543
> Category: Planetary nebula.
> Class:
> Constellation: Dra
> Data: mag 8,1v  size 15x20"
> Position: RA :  DEC :
> Description:
> Impressive! At 131x NGC6543 appears as a very bright blue
> oval (15x20”) of
> uniform brightness. The faint outer shell is easily visible
> fading away the
> further away it is from the bright inner disk. The bright
> 10,9magv central star
> is not visible at this magnification; it seems to be flooded
> by the bright
> light of the nebula. At 342x the CS is now directly visible
> but appears fainter
> than it actually is. The bright inner disk shows signs of
> annularity. The
> diameter of the halo is at least 70”. Very beautiful!
>
> --
> Optional related URLs:
> ** This observing log automatically submitted via the Web from:
>   http://www.visualdeepsky.org/enter-log.html
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