Our Astronomical Column

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    Abstract

    SUNSPOT DATA FROM CHINA.—Solar observations have been carried out systematically and with great zeal for many years at the Zô-Sè Observatory, China, under the direction of Father Chevalier of the Jesuit Mission at Shanghai. Vol. 14, No. 1 of the Annals of this observatory contains lists of sunspots and of prominences observed during the three years 1920, 1921, and 1922. The heliographic co-ordinates of the spots, date and hour of meridian passage, observed areas, and other data are carefully recorded; and in the case of the prominences the latitudes, heights, areas, and relative brightness are tabulated. Apparently the opportunities for successful observation of prominences are limited to about sixty days annually, but these observations will nevertheless be of considerable value in co-operation with visual observations made elsewhere.

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