Recent content by Onpage57

  1. O

    Astronomy/math problem blahhh?

    The interstellar explores have just landed on a planet in a unexplored star system. There is a moon in orbit, which they measure as 0.62 degrees across. They bounce a radar signal off it, which takes 1.6 seconds to return. (Radar travels at the speed of light.) How large is the moon? I need...
  2. O

    Astronomy/math problem using AU?

    An asteriod has a perihelion distance of 2.5 AU and an aphelion distance of 4.5 AU. Calculate its orbital semimajor axis, eccentricity, and period. SO confused
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