The "table" for a Z130 does not have to be that sturdy, it is a light scope, and it is small aperture,
so I don't normally exceed 150x.
I use a 6 gallon paint bucket on a lawn, I can track easy, better than a refractor on an alt-az mount
Of course if the ground you are on is highly sloped, or really bumpy a bucket wont work, you will have to use a 3
Some other ideas are a plastic milk crate, plastic picnic coffee table, I have heard some use the hood of their car.
A wood picnic table like in a park will work, except if it has attached benches you can't sit on the same table.
Sometimes I sit on the ground with the scope on a blanket, I have a grass allergy,
so I don't like to touch grass, you may not even need the blanket.
That being said there are some tables that don't work. I have a small iron patio table that sways and vibrates.
A "table top" and a dobsonian are both dobsonians. What makes a dobsonion a dobsoian is
it is reflector telescope, and the mount is a box that sits on the ground. As opposed to a tripod.
The difference between the table tob and regular is that a regular dob has a long focal length so when the
telescope is set on the ground the eyepiece is at a height that is comfortable for most adults to view.
Table tops are short focal length scopes where the eyepiece is too low to set the scope on the ground and view.
(unless you are sitting on the ground).
Edited by vtornado, 11 September 2019 - 08:15 PM.