What is Sidereal Time?
The vernal equinox for 2020 was last week (as of this writing) and I had planned on posting this on that day. But there’s a global pandemic spreading through the world right now and, like so many others in North America, I was preoccupied with other things. In any case, in honor of the vernal equinox this post is going to talk about sidereal time. If you’re an amateur astronomer interested in the algorithm for local sidereal time then skip down to the next section. If you’re coming in cold then read on!