In analyzing the data from your program, you discover one star that dims by about 0.1% for about two hours on every 63rd day. Assuming the dimming is caused by a single planet, what would you conclude about this planet?
We can call this planet in transit or astronomical transit, where at least one celestial body appearing to move across the face of another celestial body (the star), hiding a small part of it, as seen by an observer at some particular vantage point.