Abstract
A NEW VARIABLE STAR.—On July 26, 27, and 29, 1783, D'Agelet observed a star which he twice estimated 6m., and on the last night 6.5m.; it is No. 5057–9 in Gould's reduced catalogue, the mean of the three observations giving for 1800, R.A. 19h. 23m. 47.57s. and Decl. + 17° 19′ 42″.8. The only subsequent observation we have yet found of this star is in the Durchmusterung, where it is rated as low as 9.4m.; there is consequently a high probability that it will prove to be a remarkable variable. The position brought up to the beginning of 1880 will be R.A. 19h. 27m. 22.1S., Decl. + 17° 29′ 28″. D'Agelet's original observations will be found at pp. 542, 544, and 546 of the Histoire Céleste of Lalande.
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Our Astronomical Column . Nature 23, 517 (1881). https://doi.org/10.1038/023517a0
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DOI: https://doi.org/10.1038/023517a0