Star A and star B both have an apparent magnitude of 7.0, but star A is at a distance of 15 pc and star B is at a distance of 30 pc. Which statement below is correct?
A) Star A appears brighter than star B, but star B and star A have the same intrinsic brightness.
B) Star B appears brighter than star A, but star B and star A have the same intrinsic brightness.
C) Star A and star B appear to have the same brightness, but star B is intrinsically brighter than star A.
D) Star A and star B appear to have the same brightness, but star A is intrinsically brighter than star B.
E) It is impossible to determine how bright these stars are or appear to be relative to one another, given the information above.
Question 2
Radio dishes are large in order to:
A) attract funding from NASA and the NSF.
B) give greater magnification.
C) increase their angular resolution and collect the very weak radio photons.
D) increase the range of waves they can collect.
E) detect shorter waves than optical telescopes for superior resolution.
The Sun is the nearest star to Earth.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
The distance between the centerline of the main bearing journal and the centerline of the ...
Black Hole and Companion Star
Finding the length given total distance and distance longer than other point