Even if you are not into double star observing, you should have a look at the following double, while Canis Major is still in a good position:
HJ3945 (SAO 173353), RA 07:16.6 Dec -23:18
The magnitudes are 5.0 and 7.0 respectively, with a separation of 26 arcseconds, which makes it an easy object in any telescope, or even binoculars.
I used this object last night to show children aged 4, 5, 7 and 10 that stars come in lots of different colours. Everyone who looked said "Wow!". Some of the same children were unimpressed with Omega Centauri ( a difficult audience indeed). It is definitely worth a look.
I would liken this double to the much better known Beta Cygni (Albireo).
I have some other fantastic colour doubles to hunt down on Saturday night, so I will post some more in due course!
