Abstract
COMET 1909b (PERRINE'S, 1896 vii.).—The re-discovery of Perrine's, 1896 vii., comet by Herr Kopff is confirmed by a notice in No. 4347 of the Astronomische Nachrichten, where it is stated that perihelion passage should occur about October 31.35 (Berlin M.T.). This comet, according to Herr Ristenpart, passed through perihelion for the first time since its discovery in 1896, in April, 1903, but, owing to its small angular distance from the sun, was not found at that return. According to an ephemeris given by Prof. Kobold in No. 4348 of the Astronomische Nachrichten (p. 62, August 18), the position of the comet on August 26 will be α = oh. 49.3m., δ= +42° 35′, and it is travelling in a direction parallel to, and slightly north of, the line joining ν and 51 Andromedæ; since its discovery on August 12 the magnitude has increased 0.5. A photograph of this object was obtained at Greenwich on August 14.
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Our Astronomical Column . Nature 81, 267–268 (1909). https://doi.org/10.1038/081267a0
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DOI: https://doi.org/10.1038/081267a0