Part 3 should be a breeze after getting through Part 2: Aperture. 

I do this on purpose actually, give you the setting and control that takes some mind wrangling to wrap our heads around and then let you breeze through this episode that is all about our Shutter Speed. 

Shutter Speed is synonymous with motion, though when we're shooting at night the rules are a wee-bit different than what we're used to during the day.

The biggest thing we need to pay attention to with our shutter speed is blur due to camera instability or settings (and whether or not we want it)

As promised, here is the shutter speed scale, in FULL stops, as I told you in the episode, full seconds are denoted by " after the number:
30"
15"
8"
4"
2"
1"
1/2
1/4
1/8
1/15
1/30
1/60
1/125
1/250
1/500
1/1000
1/2000

I would love for you to sign up for my free Your First Milky Way Photo training here if you haven't already:
https://kristinerosephotography.com/yourfirstmilkywayphoto