Hi there
If there is a star rating next to a major or minor time, it means that this time is around sunrise or sunset.
Matching major or minor times with sunrise or sunset will generally give you the best chances.
If you have a minor time at sunrise, fishing at this time could be better then during a major time in the middle of the afternoon. That's why there is an extra star for this time.
It's always a good idea to try to match as much as possible solunar and weather events on a day to determine the best major or minor time to go out.
Even if you have a poor general day rating but sunrise/sunset, tides and weather are in favour of the minor/major times you might still get a decent catch.
Hope that helps
Cheers
If people concentrated on the really important things in life, there'd be a shortage of fishing poles.