Input (grade 5): Romulus, the outermost moon, would be about 0.89 ° across, slightly bigger than the closer but smaller Remus, which would be about 0.78 ° across.
Output (grade 4): Romulus, the farthest moon, would be about 0.89 ° across, a bit bigger than the closer but smaller Remus, which would be about 0.78 ° across.