To me that looks like a "sandwich" of several long exposures stacked.
Beginner taken that, hmm, I would say slim, but if your are thorough and lucky, why not? ^^
To shorten and sum things up:
just a DSLR and a lens does not weigh much, this is good, because the more weight the more beefy motorized tripod you need.
An EQ5 or equivalent would probably be enough, however HEQ5 would be the next step if a little more weight is added and even more thorough tracking is needed.
tracking, this is done with a small refractor telescope, a star tracker camera and a laptop.
(An EQ5 can track without all this extra equipment, but not very accurate, not sure to what extent though, but I have heard 10-30 seconds.)
making the tripod ready for the part of the hemisphere you are on, making sure that it's completely level and on a surface that is completely solid.
weather and light pollution, one of em you might be able to get away from, but the other will control you completely.
This is what it usually looks like:
The pictures he has taken though are stunning!
You won't have to go far though to find competent people within this subject ^^
Take it from here Bob, you are way more experienced than me!
Btw, I have a HEQ5, Celestron 10" Newtonian reflector and some TeleVue 1,25 lovely optics. I have only done pure visual stuff so far, no photography worth mentioning. A telescope like the one I have is way to heavy for my tripod, just as an example.