NGC 3576

NGC3576 is a complex nebula in Carina constellation. Narrowband version using the Hubble palette, with filters S2-O3 and Ha. This was my first trial with these filters, very difficult to process for me. I try to accumulate many hours of exposure, and this picture have more than 28 hrs for about two months, S2=6hrs 20min, O3=6hrs and Ha=8 hrs. Ha was used also as luminance.