Ken; My notes don't speak of any differences in the concentration in this area. I will look again next weekend. Both clusters don't appear to be much in the 13 inch. NGC 133 6 stars, 4 of 10th mag and 2 of 12th mag. Not much at 100X. NGC 146 18 stars counted, about 10' round. Has several nice chains of stars at 100X. Take Care; Steve Author "Deep Sky Observing--The Astronomical Tourist" Saguaro Astronomy Club website www.saguaroastro.org -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.