If the magnitude difference between one star and another is 5, the stars differ in brightness by a factor of
a. 2.51.
b. 10.
c. 4.
d. 100.
d
You might also like to view...
How are the jets produced by radio galaxies similar to those from protostars?
What will be an ideal response?
The most massive region of the Milky Way Galaxy is _____
A. the galaxy's bulge B. the dark matter halo C. the galaxy's disk. D. the supermassive black hole.
What is the primary reason that we launch X-ray telescopes into space rather than building them on the ground?
A. It is less expensive to launch them into space. B. On the ground, there would be too much light pollution from nearby cities. C. Atmospheric turbulence blurs X-ray images too much. D. X-rays from space do not reach the ground.
On bare feet, a tile floor feels colder than a rug because the tile has a greater ______________
Fill in the blank(s) with correct word