<h3><center> NGC 3576</center></h3>

NGC 3576

Combination of 20, 3 minute images with H-alpha and SII filters,
and 8, 3 minute exposures using an OIII filter.
SBIG ST-8XE CCD. 5" f/5 refractor at prime focus.

NGC 3576 is a small emission nebula about half way between NGC 3372 and IC 2948. Judging from the arcs of nebulosity to the north (above) of the main nebula, there are very strong stellar winds blowing the gas away from hot young stars. Also, there is considerable dark nebulosity entwined with the bright regions. The bright knot to the east (left) of NGC 3576 is RCW 57, surrounding the open cluster NGC 3603. NGC 3576 is actually one one of several NGC designations for this nebula. Several of the brighter regions have their own NGC designations. These include 3579, 3581, 3582, 3584, and 3586. The very small, isolated patch of nebulosity to the lower left of the image does not appear to have a catalog designation.

Combination of 20, 3 minute exposures exposures using an H-alpha filter, SBIG STL-1001E CCD camera.
300mm f/6 newtonian telescope at prime focus.

Combination of 10, 3 minute images with H-alpha filter. SBIG ST-8XE CCD. 4" f/8 refractor at prime focus.