9️⃣
So, what you actually need to do these pictures ?
- a digital camera with a manual or BULB mode
- a stable tripod
- a lens, preferentially with a large field of view
- intervalometer (or something that can control the exposure)
This is what I use: a Canon 5D mk III with a Samyang 14mm f/2.8. The best tripod of the market (from swarovski optik) and a basic intervalometer.