Help Identifying Unclear Object Seen Through Telescope

[a7d07c8114]

Hi, I'm pretty new at this amateur astronomy thing, and I saw something through my telescope that I could not focus clearly enough on (as to be expected from a telescope I picked up from craigslist for $10). I would like help identifying it.
Latitude: 40° 15' 36" N
Longitude: 74° 16' 27" W (note: these are slightly approximated, should be within a 10 second margin though)
Time: Wed 2011 Aug 24 3:50 -ish UTC, and persisted afterward
Object location: In the vicinity of Jupiter (aim point RA: 2h 56m 54s)
Object description: I saw a curved white line. I was unable to focus on it, so it was blurry and I can't give you much more than that. It might have been a disk shape, and I was seeing the edge? I think it was larger than the image of Jupiter - I could focus on Jupiter, yet the image of the line would still be large and unfocused.
If this is the wrong place for this question I apologize.

 

[Chronos]

The possibilites are endless - sounds like a lens flare to me. The human eye is very easily deceived.

 

[Drakkith]

I was just looking at Jupiter a few days ago, and I didn't see anything near it. Check again tonight if you can and make sure it isn't lens flare, or a cloud, or something else.

 

[DaveC426913]

Object description: I saw a curved white line. I was unable to focus on it, so it was blurry and I can't give you much more than that.

Sure you can. Sketch it.

Use a pencil on paper (not a computer) so you can Draw all the fuzzy bits.
Reverse black for white (or you'll go through your pencil in a hurry).
Draw in the scope artifacts (such as field of view).
Take a pic with your cellphone and attach.

Also, what kind of scope? Newt? Dob? Refrac?
Diameter? Mag? Eyepiece?

 

[a7d07c8114]

Tried again the night after, seems you guys are right: it's gone. Appears to be lens flare. Thanks though!