A AppleTown Guest Feb 1, 2009 #1 ...radius of 4 solar radii , an ? Apparent Magnitude of 2 ? a. 5 parsecs b. 20 parsecs c. 50 pasecs d. 200 parsecs
...radius of 4 solar radii , an ? Apparent Magnitude of 2 ? a. 5 parsecs b. 20 parsecs c. 50 pasecs d. 200 parsecs