pookiebear
New member
At the start of the summer of 2008 the planet Mars had an apparent magnitude of -1.2. Currently mars has an apparent magnitude of +0.8. How much brigher (or fainter) is Mars currently compared to its brightness at the start of the summer of 2008? Express your answer as a ratio or factor.
please a little explanation would be greatly appreciated
please a little explanation would be greatly appreciated