Abstract
RED STARS, &C.—We lately referred to the incompleteness of the first catalogue of isolated red stars formed in 1866 by Prof. Schjellerup of Copenhagen, In the last part for 1874 of the Vierteljahrsschrift der Astronomischen Gesellschaft is a second and much extended catalogue by the same astronomer. The first list, which was published in Astron. Nach., No. 1,591, with additions in No. 1,613, contained 293 stars; in the new catalogue the number is upwards of 400. The notes attached have also been considerably extended. The author remarks that his first list was instrumental in the discovery of a number of variable stars, and that Secchi found in it many stars of his Type III. and the whole of Type IV. Those who are interested in the discovery and observation of variable stars will do well to provide themselves with Schjellerup's new catalogue. The same part of the Vierteljahrsschrift (which accidental circumstances have delayed in publication) contains an ephemeris of most of the variable stars for the year 1875; also a notice of Prof. Schönfeld's researches on S Cancri from observations to April 1872; the period is found to be 9d. 11h. 37m. 45s., and the epoch of minimum is fixed to 1867, August 31, at 14h. 12m. 15s. Paris mean time. This star has long been known to resemble Algol in its law of variation; the diminution of light commences somewhat suddenly, 8½ hours before minimum, and about 13 hours after minimum the star recovers the brightness at which it continues to shine for, the greater part of its period.
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Our Astronomical Column . Nature 11, 446 (1875). https://doi.org/10.1038/011446b0
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DOI: https://doi.org/10.1038/011446b0