Spectroscopic effective temperatures versus the photometric values obtained by Hillenbrand (1997). Our and values obtained using the LDR method and MOOG code are shown as filled and empty stars, respectively. The arrow represents an upper limit. The error bars on the x-axis refer to the values given by Hillenbrand (1997), while those on the y-axis refer to the uncertainties in only, while typical uncertainties in are 60 K (see text).