Compared to two nights ago the brighter inner part of the coma has now elongated and bifurcated. Below image is a stack of 29 images of 5 seconds each, taken from a fixed tripod with the Canon Digital Ixus 400 at maximum zoom (3x):
(click image to enlarge)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7U4AmbwGcUhJ26kbv94VVDEpZgM53x7NQG-TYaKFIuCwpA19E8dpSVnKe9XIIGTahkmVRlHAHutPp2WTUqSGSDY_Enyv3Yk8clNskvhJLVRJYHMcNrlHh8B9IqSGf7ectsNw8Mw/s400/Holmes17Nov07_29x5def.jpg)
The bifurcation is more readily apparent in this false-colour version of the image:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgZiP-o7M2ugtc0RiPEBoHLiBM0F437-VrjHlqNU_6wedINTPoqVKfKP_LKgvbQtt2Md3sLHsUPlP3Znr3Mzu2DX9IpYwVwUG41BMWemEsPHWnEnzCZ1y_3y09XH25Ow33ocBK2g/s400/Holmes17Nov07_FC.jpg)
A wide-field view ( a stack of 9 images of 10 seconds each) taken with the Ixus:
(click image to enlarge)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRHn99dZa5Yg78Ftnr1AeH61sE2teYedIemMmgA6I7tVNaIBxPcrTcDsT2TB_9Xfx6Dz20cy_iL-fH2kFEeyJvy8IorDK2v18gmLxhnaIAtrdGiijTHqt9bEI9bbXPcJJYTkJ5jg/s400/Holmes17Nov07_9x10def.jpg)
Using ASTRORECORD I measured the coma size on the zoomed image to be 29.0' (Nov 17.97), corresponding to 2 million km in reality:
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