double vRad, double mass, double magBol, int pop, double feH, double alphaE) throws SimuException {
// not sure if important? random so far...
long idRoot = 1223345453L;
// Generate spectral type
SpectralType spectralType = new SpectralType( spType );
// Generate photometry
Photometry photometry = new Photometry(magMv, distance, vMinusI, absV);
// Generate astrometry