Abstract
FOUR NEW VARIABLE STARS.—Prof. E. C. Pickering announces (Astr. Nach. 3225) that four new variable stars have been discovered by Mrs. Fleming from the presence of bright hydrogen lines in photographs of their spectra taken in connection with the Henry Draper Memorial. The first of these is a star in the constellation Sculptor, having the co-ordinates R.A. oh. 10˙4m. Decl.−32° 36′. The range of variability of this star is from magnitude 6˙5 or 6˙6 to 10˙0, and the period 366 days. The Second star is Arg-Oeltz 16121, in Scorpius, its exact position being R.A. 16h. 50˙3m. Decl. − 30° 26′. The range of variability is from 7˙3 to 11˙6 magnitude, and the period is 278 days. The star B.D. + 1°˙3417, in the constellation Ophiuchus(R.A. 17h. 14˙5m. Decl.+1° 37′) is the third of the variables discovered, the range in this case being from magnitude 8˙5 to 12˙5, and the period 348˙4 days. The fourth star is B.D. + 4°˙425O, in the constellation Aquila (R.A. 19h. 46˙5m. Decl. + 4° 13′). Its period is about a year, and at the last maximum on August 12, 1893, its photographic magnitude was 9˙5. At a minimum it becomes fainter than the twelfth magnitude.
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Our Astronomical Column. Nature 49, 608 (1894). https://doi.org/10.1038/049608a0
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DOI: https://doi.org/10.1038/049608a0