Abstract
COMET 1913f (DELAVAN). —M. P. Puiseux communicates to the Comptes rendus for September 28 (vol. clix., No. 13) an account of photographs of Delavans comet (1913f) which have been obtained at the Paris Observatory with the Henry—Gautier equatorial on September 5 and 6. The plates are impressed with a r seau, and each shows at least six stars which figure in the catalogues of the Astronomische Gesellschaft, executed at Bonn and Cambridge, together with a large number of fainter stars. Thus the necessary data are available for the determination of two accurate positions of this object. The comet on these dates was a little fainter than a 33 mhgnitude star. M. Coggia, in the same number of the Corn ptes rendus, gives five observations of positions of this comet made between September 14 and i8. On these dates the comet presented a round nucleus of about magnitude 5 with a tail of about 1° in length.
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Our Astronomical Column . Nature 94, 182–183 (1914). https://doi.org/10.1038/094182a0
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DOI: https://doi.org/10.1038/094182a0