There is so much in crap data. (blue halos on stars)
This is set 1 of 2 this morning with the Pentax DSLR tracked.
A stack, then a Keller curve, then extract luminance..and a star tweak.
Negative shows the extent of the tail.
Seeing was better this morning in Adelaide, transparency was better.
It shows, comparing this morning's to yesterday's.
Glen C is dead right, the tail does extend past Beta Cent!
They must be good binocs, and well trained eyes Glen
Edit: added set 2. 03:31am-04:31am local
If you squint at the first colour shot until only Alpha and Beta Cent are
visible, that's about what the comet looked like from suburban Adelaide.
Steve