NGC 6543 (PK 96+29.1) Planetary Nebula in Draco

Located at: RA 17 hours 58 minutes 34 seconds, Dec +66 hours 37 minutes 59 seconds

Size: 20"* Magnitude: 8.8 photographic Class: 3a+2

North is up

 

West to the right

Telescope:

 14.5" f5 Newtonian reflector

Camera:

  ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 8.33 minutes (100 x 0.083 minute {5 seconds} subs), 04/19/2014; seeing 2.5-4.7 FWHM per CCDStack

Processing:

CCDStack 2.77.5159.19820, Photoshop CS5.1

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes:* As with IC 2165, I used the best 100 subs out of 200. See the CDS POSSII/F/DSS2 image of the fainter outer shell (about 5' in diameter*), known as IC 4766.

View 200% crop.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 6543
NGC 6543 = PK 96+29.1 = Cat's Eye Nebula = Helical Nebula = IC 4677 = PN 
G096.4+29.9
17 58 33.2 +66 37 59
V = 8.1;  Size 22"x19"

18" (7/21/04): at 435x, it was fairly clear that there were two shells in the 
main body which were of different sizes and orientations creating a complex 
appearance. Surrounding the high surface brightness main body was a thin, very 
faint outer envelope (inner portion of the outer envelope). The central star was 
visible continuously.

18" (6/21/03): remarkable view at 538x.  The central star shines steadily in the 
center of what appears to be two superimposed shells, offset in orientation by 
~90 degrees.  Interior filamentary or arc-like structure was highly suspected.

17.5": viewed at 280x and 412x; the Cat's Eye nebula appears very bright, fairly 
small, oval SW-NE, blue-green color.  Appears darker (annular) surrounding the 
mag 11 central star.  The prominent visual portion is surrounded by a very faint 
oval outer envelope (386") which was not seen but includes the bright irregular 
knot IC 4677 1.7' west of center.  N6552 is located 10' following.

IC 4677 was suspected at 220x without filtration close to a mag 15 star located 
1' W of the planetary.  Using a UHC filter, IC 4677 was clearly visible with 
averted vision as a very faint elongated patch, ~25"x15" oriented SW-NE.  
Requires averted for a good view but could hold steadily almost continuously.  
It was also visible at 140x with an OIII filter and 280x with the UHC, but 220x 
provided the best view.

13": at 400x appears very bright, oval N-S, blue color, central star visible 
with averted.

8": bright, elongated, blue, high surface brightness.

- by Steve Gottlieb
Historical Research Notes / Correction for NGC 6543
NGC 6543 is the famous planetary near the north ecliptic pole.  See IC 4677 
for a bit more about it. - Dr. Harold G. Corwin, Jr.