I agree that more sessions would be beneficial. My conclusions change frequently as I am always being taught new things. I guess the thing that I was taught on Friday night was to look at the planet both ways and to see if I can see any improvement by using the filter. I think that to get everything out of it I may have to study the planet using both techniques. Hopefully we can have many more observing sessions where we can exchange ideas and techniques. -----Original Message----- From: Chuck Hards [mailto:chuckhards@yahoo.com] Sent: Monday, February 03, 2003 12:29 PM To: utah-astronomy@mailman.xmission.com Subject: Re: [Utah-astronomy] Dave's & Brent's tests Sorry I can't recall the name of this thread, but I've had to do a lot of deleting today to keep my mailbox from filling up, inevitably wiped a few that I wanted to respond-to in depth. Anyway.... C'mon, guys, you're drawing a conclusion from one outing, with one filter? I have used a blue filter many times to increase the visibility of festoons at the edge of the equatorial belts. These are tiny details that you won't see at low powers and probably won't see through even thin cloud and less than perfect seeing. I'm not talking about the largish shear features, resembling "fingers" that most commonly are seen, but small, delicate wisps at the edge of resolution. I think when Mars comes into opposition you will have more dramitic opportunities to experience the advantages of filters. Your and Brent's descriptions tell me that you're not looking for details that a filter can actually help bring-out. You're still expecting an "Ah-ha" experience....this is more subtle than that. C. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy