What's That on My Mop?

My string mop was leaning up outside the house to dry (for about a week now!) and from the corner of my eye I noticed something moving.

 Sure enough, it was a butterfly, sunning its wings in the morning sun.

It took me many tries to get a good photo with is wings fully opened. Isn't it a beauty?
I looked it up and it might be a Satyr Comma (Polygonia satyrus ). Anyone out there know their butterfly i.d.? Help!***
***Thanks to John S. from Ottawa who dropped me a line and it seems that the little guy  is an Eastern Comma. To see a great site of difficult to identify butterflies, go here:
http://littlebrownjobbies.blogspot.ca/2011/02/butterflies-of-southern-ontario.html
Thanks John!!