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Minkowski's Butterfly was one of the last objects that we viewed through John Vogt's 32" f/4 ATM Dob at Stellafane on Saturday morning. I had also suggested Jones 1 earlier but that one got lost in the goto shuffle.

Dave Mitsky

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I have seen (barely) Jones-1 in my 10 inch, so I thought it would be a good target for observing at the Nebraska Star Party. Dragan and I hit Jones-1 in his 25 inch and it was fairly interesting. Without a filter, it looked like two faint disconnected arcs with only a hint of the full annulus, but with the OIII, the object was a very nice complete ring that was brighter on the northern and southern sides. Now Minkowski's "footprint" was a different story (object in Cygnus not far from Albireo). That was a real stinker, but the problem turned out to be use of a little too much power on the 25 inch. I hit it at one point, but once Dragan got up the ladder to the eyepiece, it wasn't in the field anymore and we spent a lot of time unsuccessfully trying to get it back again. Dragan gave up in frustration, but I knew what I had seen, so I went over to John Johnson's 20 inch with Argo Navis and had him punch in the coordinates. Sure enough, the little fuzz spot appeared at 74x, and tended to become difficult at the really high magnifications we had been using in the 25 inch. I guess we needed to be less literal with magnification when some descriptions mention observations at high power. Clear skies to you.

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David,

I've observed Jones 1 (PK104-9.1) a number of times in the past, the first time using a friend's one-of-a-kind 20" f/10 classical Cassegrain that was built by Mike Dudley of D & G Optical. The smallest scope that I've had occasion to view it with was a friend' 14.5" Starmaster Sky Tracker Dob.

Jones 1 is one of the objects on The RASC's Deep Sky Challenge Objects List.

Dave Mitsky

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Chance favors the prepared mind.
De gustibus non est disputandum.

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