Karna daily worshipped the sun-god. Surya is one of the Deities Pancopasana worshippers select. The gayatri mantra Srila Prabhupada gave us specifically praises the sun. In the Twelfth Canto we learn that not only is the sun one of Krsna’s eyes (in the Universal Form) but that it IS Krsna: “The sun-god, being nondifferent from Lord Hari, is the one soul of all the worlds and their original creator. He is the source of all the ritualistic activities prescribed in the Vedas and has been given many names by the Vedic sages. (Srimad Bhagavatam, 12.11.30)
Lord Krsna is the Sun