[click on image to see a larger one]
All triptychs are presented VIS left, Baader-U middle, Jupiter-U right:
A quite surprising find, since Iris' are usually not much UV reflective. This one however does quite strongly around 365nm.
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos