Is it true that the sun is in the Fourth Heaven?

"Astronomers believe that the sun is in the fourth heaven, whereas jurists believe that the seven heavens are distinct from the celestial spheres. Evidence that the sun and stars are in the lowest heaven is drawn from the Almighty's saying: 'Indeed, We have adorned the nearest heaven with an adornment of stars' (Qur’an 37:6), and His saying: 'And We have certainly adorned the nearest heaven with lamps' (Qur’an 67:5), and His saying: 'And We have certainly adorned the nearest heaven with lamps and have made [them] missiles for the devils' (Qur’an 67:5). Ibn Kathir supported this inference."