Frosty Leo (a post AGB star with
a bi-polar nebula). In the visible the central star is
invisible so guiding was done on the lobes of the nebula.
The central star of the nebula has been observed as a double. Our preliminary results do not show such a companion, but data reduction is actively taking place to identify and remove artifacts.
These two color images were obtained by combining three infrared wavelengths: J band (1.25 microns) as blue, H band (1.65 microns) as green and K' band (2.1 microns) as red. Note how the central star is hardly visible on the J image. This is the reason why we had to lock the loop on the (lower) lobe.
The central area is quite different from one night to the next leading us to believe that many of the very fine detail seen is in fact artefact.