Nice shot Bert,
I was scanning around your image and found an interesting object, but now I think it may just be NGC3699.. Well it looks similar to a small comet on your image...
http://www.theastroweb.com/astronomy...mos_object.jpg
Basic object information
Name: NGC 3699
Type of object: Planetary nebula
Magnitude: 14.0
Size: 1.0'
Position (epoch of date)
Right ascension: 11h 28m 18s
Declination: -59° 59' 47"
Constellation: Centaurus
Local information
Altitude: 45° 10' 35"
Azimuth: 142° 50' 58"
Transit: 2h 58m 40s
Star atlas chart numbers:
Herald-Bobroff Astroatlas, Chart C-84
Millennium Star Atlas, Charts 989-990 (Vol II)
Sky Atlas 2000.0, Chart 25
Uranometria 2000 Chart 427, Vol 2
Revised NGC/IC Catalog Data
Wolfgang Steinicke, Feb 2001
Names and designations
NGC 3699
PK 292+1.1
ESO 129-PN21
AM 1125-594
Type of object: Planetary nebula
Catalog position for epoch J2000.0
Right ascension: 11h 27m 57.2s
Declination: -59° 57' 29"
Object information
Magnitude: 14.0
Size: 1.0'
Object classification: PN
Saguaro Astronomy Club v7.2 Catalog Data
Saguaro Astronomy Club, August 2000
Names and designations
NGC 3699
PK 292+1.1
Type of object: Planetary nebula
Catalog position for epoch J2000.0
Right ascension: 11h 27m 57.3s
Declination: -59° 57' 25"
Constellation: Centaurus
Object information
Magnitude: 14.0
Size: 1.1'
Description: B,pL,iR,pgpmbM
Notes: S neby w few F*
Strasbourg Planetary Nebula Catalog Data
Strasbourg Catalogue of Galactic Planetary nebulae
Acker, Marcout, and Ochsenbein 1980
Name: PK 292+ 1.1
Right ascension (J2000.0): 11h 27m 57.3s
Declination (J2000.0): -59° 57' 25"
Average diameter of brightest part of nebula: 67"
Mean radial velocity: -6 km/sec
Expansion velocity: greater than 18 km/sec