  We present a study of the stellar parameters, distances and spectral energy
distributions (SEDs) of HD 34282 and HD 141569, two pre-main sequence Herbig
AeBe stars. Both objects have been reported to show `anomalous positions' in
the HR diagram in the sense that they appear below the main sequence. A
significant result of this work is that both stars are metal-deficient. The
{\it Hipparcos} distance of HD 34282 is very uncertain and the current study
places the star at the expected evolutionary position in the HR diagram, i.e.
as a PMS star. The distance for HD 141569 found in this work matches the {\it
Hipparcos} distance, and the problem of its anomalous position is solved as a
result of the low metallicity of the object: using the right metallicity
tracks, the star is in the PMS region. The SEDs are constructed using data
covering ultraviolet to millimetre wavelengths. Physical, non-parametric
models, have been applied in order to extract some properties of the disks
surrounding the stars. The disk around HD 34282 is accreting actively, it is
massive and presents large grains in the mid-plane and small grains in the
surface. HD 141569 has a very low mass disk, which is in an intermediate stage
towards a debris-type disk.
