F F-type main-sequence star English F/Yellow-white dwarfs F-stars F English F/Yellow-white dwarfs F-type main-sequence star F-type star सामान्य F श्रेणी F-тип звезда F-stars F-type star F-type main-sequence star English https://en.wikipedia.org/wiki/F-type_main-sequence_star F-type main-sequence star F-type star F-type main-sequence star F F-type main-sequence star спектрального класса F F-Type Main Sequence F-type main-sequence star English رده ی F F F-stars F-stars main sequence star F F-type star F-stars main sequence star