Assuming that we can measure the apparent brightness of a star, what does the inverse square law for light allow us to do?
A) determine the distance to the star from its apparent brightness
B) determine both the star's distance and luminosity from its apparent brightness
C) calculate the star's surface temperature if we know either its luminosity or its distance
D) calculate the star's luminosity if we know its distance, or calculate its distance if we know its luminosity
Question 2
What is the Tully-Fisher relation?
What will be an ideal response?
A star-forming region in the Large Magellanic Cloud.
The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
Spectra of a Metal-Poor and a Metal-Rich Star
Crying Frequency in the Early Months In their first months of life, infants often cry for no appare
Kazimir Malevich, Black Square.
Punnett square