NGC 6778 (PK 34-6.1) Planetary Nebula in Aquila

Located at: RA 19 hours 18 minutes 25 seconds, Dec -01 degrees 35 minutes 46 seconds

Size: 16" Magnitude: 13.3 photographic Class: 3+3

North is up

West to the right

Telescope:

 14.5" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -10c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 75 minutes (100 x 0.75 minute {45 seconds} subs), 09/16/2014; seeing 2.8-3.4 FWHM per CCDStack

Processing:

CCDStack 2.81.5337.19441, Photoshop CS5.1

Location:

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

Notes: As with past high surface brightness planetaries, I used the best (seeing) 100 subs (out of a total of 150 for this one) for this image.

View 200% crop.

From the NGC / IC Project:

Contemporary Visual Observation(s) for NGC 6778
NGC 6778 = PK 34-6.1 = PN G034.5-06.7 = N6785?
19 18 24.8 -01 35 47
V = 12.1;  Size 25"x19"

17.5" (9/5/99): fairly bright, but small disc picked up at 100x.  Easily takes 
high power. Nice view unfiltered at 280x - the PN has an irregular surface 
brightness with a brighter center but no central star and appears slightly 
elongated WNW-ESE, perhaps 20"-25" in diameter.  At 500x the outer edge of the 
rim fades and is not sharply defined.  At moments a sparkle was visible at the 
center with this magnification.  Located 5.0' WSW of mag 9 SAO 143251.

13": bright, fairly small, estimate V = 12.0-12.5.  Very nice view at 214x with 
a UHC filter and slightly elongated WNW-ESE with a fainter rounder halo 
suspected.

- by Steve Gottlieb

=================================================================
NGC 6785 = N6778? = PK 34-6.1 = PN G034.5-06.7
19 18 24.8 -01 35 47

See observing notes for N6778.

Discovered by JH (h2038).  Bigourdan gave a minor change of 0.2 tmin E in the IC 
2 notes.  At this position on the GSC is a close trio consisting of a mag 13.3 
star with nearby mag 14.8/14.9 stars.  A mag 11 star is 1.2' E.  The position of 
the mag 13.3 star is 19 20 57.8 -01 08 13.  Corwin states this clump is clearly 
*not* N6785, but may refer to the planetary nebula N6778.  See NGCBUGS.

- by Steve Gottlieb
Historical Research Notes / Correction for NGC 6778
NGC 6785 = NGC 6778.  JH's description reads "An eS stellar neb = a * 15m; it
is 2/3 of a diam of field (= 10') from a double star which it follows, to S.
Pos from the star = 240 deg +-.  The RA is excessively loose."  This fits
N6778 if the phrase "which it follows" is changed to "which follows it."
Then, the position angle agrees as well.  This means, however, that not only 
is the RA "excessively loose," but that there is 30 arcmin error in JH's Dec
as well.

Bigourdan's correction to the RA quoted in the IC2 Notes applies to a random
clump of stars at JH's original (incorrect) Declination.  These are clearly 
not NGC 6785. - Dr. Harold G. Corwin, Jr.