No. The Sun must be blindingly bright. The radiation produced as gamma rays in the fusion reactions is very rapidly thermalized by interaction with core matter. The result is a radiation field with an effective temperature of 14 million degrees, which has an emission peak at gamma ray energies for sure, but also emits a continuum of radiation at shorter wavelengths including X- rays, ultraviolet visible and so on. It would be blindingly bright. Your 'sky' would have an effective temperature of 14 million degrees, compared to the solar photosphere which from Earth subtends only 1/2 degree at a temperature of 5700 K.