NGC 6188 and NGC 6164/65

clic for 50% size 1836 x 1282 (918 kB)


About this Image

NGC 6188, an extended emission Nebula in the southern constellation Norma shows turbulent structures and waves caused by stellar wind.
Below there is NGC 6164/65, a strange planetary-like S-shaped Nebula. Its central star is a close triple system. The extremely hot central star is loosing mass from its outer layers continuously, but occasionally more vigorous outbursts give rise to the symmetrical shells seen in this image.
North is right.

Below you find a pure H-alpha image in 20/50%.

At bottom you find a crop on NGC 6164/65 in 100% size.

clic for size 1836 x 1282 (785 kB)


Technical Details
Optics

105mm TMB refractor with flattener at f/6.5

Mount AP400 GEM
Camera SBIG STL-11000M at -20C, internal filter wheel
Filters Astronomik H-alpha (15 nm) + RGB
Date Aug 13, 2004.
Location Hakos/Namibia
Sky Conditions mag 6.5, good transparency, temperature 10 C,
Exposure Ha = 60 min (10-minute sub-exposures),
RGB= 15:15:15 min (5-minute sub-exposures)
all 1x1 bin.
Processing Image aquisition in Maxim DL 4.0; Image calibration, aligning, mean stacking, DDP and color synthesis in ImagesPlus;
Photoshop: H-alpha blended mainly to red and little to L channel; cropped, Noise reduction by Neatimage;