1. What is the apparent magnitude scale and what end of the scale represents the brightest stars?

2. How do you determine how far the sound of thunder has traveled (not counting how many seconds from flash to sound and dividing by 5)

3. A refracting telescope with the best resolution has ____?

4. Why are orbital observations advantageous?

5. How must a satellite in lower earth orbit move to maintain its orbit compared to a satellite in higher earth orbit?