  In this paper we present new near infrared (NIR) imaging and spectroscopic
data of the quasar 3C 48 and its host galaxy. The data were obtained with the
ESO-VLT camera ISAAC.We report the first detection of the apparent second
nucleus 3C 48A about 100NE of the bright QSO nucleus in the NIR bands J, H, and
Ks. 3C 48A is highly reddened with respect to the host, which could be due to
warm dust, heated by enhanced star formation or by interstellar material
intercepting the radio jet. In fact, all colors on the host galaxy are reddened
by several magnitudes of visual extinction. Imaging and initial spectroscopy
also reveal a stellar content of about 30% to the overall QSO-light in the NIR.
These results are important input parameters for future models of the stellar
populations by taking extinction into account.
