00:01
All right, so let's look at a hertzpon -russle diagram.
00:05
And there are many ways to plot these.
00:08
I'm just going to plot luminosity versus spectral class.
00:15
And so this is our luminosity.
00:17
We'll put the sun's luminosity somewhere in the center.
00:20
And then the spectral class will have o, b, a, f, g, k.
00:28
Actually, let me spread these out.
00:29
So let's say, o, b, a, f, g, and we'll go to k, and maybe we'll stop it in.
00:37
So the sun is a g2 class star, so it needs to be about right here approximately.
00:42
But our main sequence is going to look something like this.
00:48
Right...