> Taken (Thursday, Sep.19th) using my C11 HD Edge. Two 1.5 minute exposures of > asteroid Bamberga taken 20 minutes apart. Each exposure was given a different > color shift (red and cyan) so when I lined them up in Photoshop, the stars > were essentially white, but any moving object (such as this bright asteroid) > shows up as a pair of red and cyan dots because of motion during the 20 > minute interval. > While the asteroid itself is about 8th magnitude, the faintest stars are > magnitude 16.5 appx - and this on a nearly full moon night - which is pretty > decent. > > Padraig Houlahan > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.