Abstract
NOVA AQUILIE.—This temporary star, which appeared last year, is slowly pursuing its course of decreasing brightness, and is now about magnitude 61/2 or fainter. Observations by Mr. Harold Thomson, in the Journal of the British Astronomical Association for May, give 6.14 as the magnitude on March 28, 6.14 on April 26, 6.37 (the mean of observations with two instruments) on May 22, and 6.64 on May 26. These magnitudes are determined by comparison with the neighbouring star B.D. + o°4027, the magnitude of which is taken as 6.04. Mr. Thomson adds that the visual spectrum strongly resembles that of Nova Geminorum II. at a similar stage of its career. The continuous spectrum is still visible from about the position, of the D line to near Hγ. The brilliance of the nebula line at 5007 is intense. There is at least one bright line remaining of the group near D, which was so conspicuous in the early stages, and bright lines or bands are still visible near 464 and Hγ.
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Our Astronomical Column . Nature 103, 353 (1919). https://doi.org/10.1038/103353a0
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DOI: https://doi.org/10.1038/103353a0