docs: def starmodel_props(self):
          """Default mag_err is 0.05, arbitrarily
          """
          props = {}
          mags = self.mags
          mag_errs = self.mag_errs
          for b in mags.keys():
              if np.size(mags[b])==2:
                  props[b] = mags[b]
              elif np.size(mags[b])==1:
                  mag = mags[b]
                  try:
                      e_mag = mag_errs[b]
                  except:
                      e_mag = 0.05
                  props[b] = (mag, e_mag)
  
          if self.Teff is not None:
              props['Teff'] = self.Teff
          if self.logg is not None:
              props['logg'] = self.logg
          if self.feh is not None:
              props['feh'] = self.feh
  
          return props