At what temperature is the light in the B filter equal to the light in the R filter (i.e. the peak of the curves are the same height)? What is the lowest temperature at which U>B>V>R?
Which star is brighter in the B image? Which is brighter in the R image?
Send a screen shot of the 4 profiles to your teacher and post your analysis of which star is the hotter, A or B, on the blog.
The “B” filter and “R” filter have equal light coming through at 5,720 K. On the diagram those two filters seems to be just about the same height. The lowest temperature following the order of U>B>V>R is about 7,830 K. That’s where they barely start to go in that order. (Figure 3)
ReplyDeleteThe “B” image is fainter. It is kind of difficult to tell which stars I’m looking at to find star A and star B. Magnifying the image by 200% did help. I tried following the pattern the stars are in and any stars that are around star A and B to find it. I think star A is brighter in the “B” image. The “R” image have a brighter Star B. Star B is probably brighter because it appears bigger on the image.
A temperature where the B and R filters are about equal is at 5550 K.
ReplyDeleteThe lowest temperature I could find for U>B>V>R is 8300 K.
In the R image, star B is brighter. In the B image, star A is brighter.
Star A is hotter because it is brighter than Star B in the Blue image
I found a temperature where the blue light matches the red light at a temperature of 5330.
ReplyDeleteThe temperature where U is greater than B is greater than V is greater than R was 5890.
Star A is brighter because in is brighter through the blue filter. Which means it is hotter. Blue is hotter than red.
5180K-tempurature when the red and blue filters have the same height on the graph
ReplyDelete10400K-the lowest temperature when the U>B>V>R
The more red a star has, the colder it is
The more blue a star has, the hotter it is
Star A is brighter because it is brighter with the blue filter.
The B filter and the R filter have equal light at 5,720. The temperature where U>B>V>R is 7,900K
ReplyDeleteWhich star do you think is brighter in the B image? Star A is brighter. Which is brighter in the R image? Star B.
Star A is brighter because it is brighter with the blue filter.
The more red a star has, the colder it is.
The more blue a star has, the hotter it is.