00:01
All right, now i'm going to do a search for my favorite constellation.
00:06
I think if you asked the majority of the people in the united states, at least, what their favorite constellation is, most people wouldn't even be able to name a constellation, and they'd probably come up with big dipper.
00:24
And those who even know would say big dipper looks like that is, ursa major or ursa minor.
00:37
Oh yeah, there we go.
00:40
So if we look here at ursa major, i'm looking for colors.
00:54
Earthsky .org.
00:56
Let's see what it shows there.
00:59
They all look the same color to me.
01:03
So let's try photo of ursa major.
01:17
Try that.
01:19
Okay.
01:25
Well, that's clearly not a photo.
01:30
I don't see any color differences there.
01:32
Definitely can't see anything there.
01:36
Here's a more interesting one, but can i tell differences? that took me to google.
01:54
It's going to be annoying if the...
01:55
The answer to this is no, that you can't see it.
02:17
Looks like this one's like brighter.
02:21
That one's not as bright, but i'm not sure that i can see differences in color.
02:33
This is not very interesting.
02:44
Let's just see what else.
02:46
Oh, how about this? that's kind of interesting.
03:00
That's not going to help me much.
03:02
Now i'm trying to get out of this.
03:07
My mouse doesn't go real quickly here.
03:15
Although, let's preview this one.
03:26
Okay.
03:28
What in the world am i looking? oh, there it is.
03:34
Okay.
03:35
Well, i would say that this one looks whiter.
03:43
All the rest of them look like bluish.
03:51
But that one looks whiter.
03:54
Okay.
03:58
Well, colors tell you about the surface temperature.
04:06
And if you go to an hr diagram, like in the book, page, find it here, page 413, the darker blue ones are hotter, and then the light blue, and then the white and then yellow.
04:40
A lot of them were dark blue, which means they're hotter, but some of them were white, which means not as hot.
04:52
So let's keep going.
05:04
Can you tell which are the three brightest stars in the constellation? okay.
05:20
Well, let's go back.
05:30
Ursa major, the three brightest.
05:37
Whoops.
05:43
I'm saying that definitely the two at the very end.
06:01
And then i'm thinking maybe this one would be the three brightest.
06:08
So i'm going to say alpha, beta, gamma.
06:17
Let's see if i choose the right stars.
06:23
Okay, well, let's, i'm going to type in brightest stars.
06:33
In ursa major.
06:36
Try that.
06:40
Okay, so we can see names of stars.
06:47
Aha, here we can see the alpha, beta, and gamma.
06:53
I chose alpha correctly...