The Rosette Nebula in narrowband

Image data of the Rosette Nebula  were collected over two nights using narrowband filters. An Altair Wave 102 triplet refractor and a Starlight Xpress H694 camera were used.
The following 2 images were made, both using the same sub-exposures
The filters used were:
Ha 6 x 5 min
O3 5 x 5 min and 3 x 10 min
S2 5 x 5 min and 3 x 10 min
All binned 2x2

The first image maps Ha as R, O3 as B and S2 as G. This is the CFHT (Canada France Hawaii Telescope ) Palette The second image uses the Hubble palette mappings of Ha as G, O3 as B and S2 as R.:

Anne Startup