"Binocular Albireos"

Hi,

One of the things that gets me about binocular books is their emphasis
on telescope targets. Something on the lines of "... but to really
appreciate this target you will need a telescope." Granted, not many
DSO are truly within binocular reach.

However, three years ago I was scanning Bootes with my 9x60 when a pair
of stars got me: it was nu Bootes, two close stars with a striking
color difference. Something like a "binocular Albireo." I spent a great
deal of time looking at them, it was very pretty.

When I came home I searched for references to nu Bootes. I found not
many, and none mentioning the color difference. I then went to my atlas
and started looking for similar configurations, but was not so
successful (my notebook says, for example, that b Gemini was not as
striking).

SO, I wonder if anybody has noticed nu Bootes the same way, and if
there is a list somewhere of similar targets. Are there any other
binocular Albireos?

Best,

- Cesar