First, my apologies. No doubt this has come up before, but I haven't had any luck finding what I'm looking for.
And that is a camera tripod head that tracks with the earth's rotation (I'm assuming it'd be battery operated or plugged into an electrical socket) so I can take long exposures of the heavens (mostly wide- to medium-angle) without motion blur.
I've done a lot of searching online with less than fruitful results.
Thanks in advance for not ripping on me if I've been boneheaded in missing previous topics on this, and for helping a fella out.


