Abstract
THE NEW STAR IN AQUILA.—The decline of the new star appears to be proceeding very slowly, the brightness on July 27 being still about equal to that of the neighbouring 4th magnitude star θ Serpentis. The visual spectrum, as observed by Prof. Fowler, has shown but little change during the past fortnight. The bright lines of hydrogen and the band λ 464 were very conspicuous throughout this period when observations were possible, and the green line about λ 501, wThich is possibly identical with the chief nebular line, was of nearly the same, brightness as Hβ. Three fainter lines in the yellow, about λλ 588, 576, and 568, also remained visible.
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