I've often heard this expression by reading some report of Saturn's observation through large aperture. I can't remember what was the typical magnification used to expressed the Cassini in these terms. Well, all I know is I can't even squeeze my sketching paper through the Cassini Division through my 4" TV-102 APO refractor :-(, let alone my old VW Beatle!
Using Ed Grafton's photo, the Division sure looks large enough to pass a lot of things through.
http://www.ghgcorp.com/egrafton/s01-05.jpg
I reduced it to 25% of original and displayed it on my 15" LCD monitor (looks just about the right size through my 4" TV-102). Well, what do you know; I can hardly squeeze a piece of paper through either ;-).
The question is: how many of you with large aperture scope use this expression? Do you see through the eyepiece such a wide gap in the Cassini Division like in the photo? If so, what magnification do you have to deploy to open the gap for those "trucks" ;-)?
Thanks,
Ron B[ee]
Using Ed Grafton's photo, the Division sure looks large enough to pass a lot of things through.
http://www.ghgcorp.com/egrafton/s01-05.jpg
I reduced it to 25% of original and displayed it on my 15" LCD monitor (looks just about the right size through my 4" TV-102). Well, what do you know; I can hardly squeeze a piece of paper through either ;-).
The question is: how many of you with large aperture scope use this expression? Do you see through the eyepiece such a wide gap in the Cassini Division like in the photo? If so, what magnification do you have to deploy to open the gap for those "trucks" ;-)?
Thanks,
Ron B[ee]