Title:Evidence for disk precession in LkHA 208

Abstract:
LkHA 208 is a Herbig Ae star featuring a close to edge-on circumstellar disk 
which is casting a shadow. It is surrounded by a bipolar reflection nebula. The 
object does not belong to the best-studied members of its class. It was found 
to be a 0.1" binary using speckle interferometry. Due to the lack of 
interferometric measurements the disk is poorly characterized. The present 
contribution provides revised stellar quantities and disk parameters, obtained 
by radiative-transfer modeling of a well-sampled SED. By comparing POSS I and 
II images striking changes of the shadow morphology were found which point to 
disk precession, possibly induced by the secondary.