nice to hear from you. There isn’t an online directory. I recall the BAA published a membership list (actually a booklet) in the late 80s or early 90s (I have mine around somewhere). There are all sorts of data protection issues now which I suspect would preclude publishing anything meaningful online.
As Jeremy says, Data Protection means that the BAA couldn’t do this without getting permission from members. We could potentially have an opt-in members’ directory, but I fear a lot of our members would be very uncomfortable about putting their addresses in the public domain — especially those with very expensive telescopes in their back gardens!
I am keen to develop the BAA website into a more social platform where are members can share images and send messages each other. Perhaps it would be worth giving members the option of specifying a home town that we could plot on a map…
The latest list I have was publised in 1995 July 31. To be honest it is probably not very useful for your needs as it’s long, very tiny font, and as it’s in in surname order difficult to go through searching for towns. Yes, an online list would be ideal but I doubt if there’ll be one for the reasons stated.