Observations of the Variation of Temperature with Lattitude in the Upper Solar Photosphere

We made photoelectric meridional and equatorial limb-darkening scans during the period 15-22 June 1971, using a spectral region of 30 mA width centered 0.77 A to the red of Ca II K3. The radiation observed originates at r5000 10 . At the time of our observations the temperature relative to the equatorial temperature was enhanced by 8 K + 2.5 K at active-region latitudes and 5 K + 2 K at latitude 50 N.