The Astrophysical journal . -<. SUN-SPOT SPECTRA 77 TITANIUM FLUTINGS IN SPOT SPECTRA In our study of the spot spectra the titanium fluting of shortestwave-length which we have as yet been able to identify with certaintyis that beginning at X There seems to be some evidence forthe presence of two more refrangible flutings at X 5166 and X 5449,but it is by no means conclusive. It would, in fact, be somewhatremarkable if these were present upon our plates, since they aremuch fainter in the titanium flame spectrum than the fluting atX 5598, which is very faint and difficult in
The Astrophysical journal . -<. SUN-SPOT SPECTRA 77 TITANIUM FLUTINGS IN SPOT SPECTRA In our study of the spot spectra the titanium fluting of shortestwave-length which we have as yet been able to identify with certaintyis that beginning at X There seems to be some evidence forthe presence of two more refrangible flutings at X 5166 and X 5449,but it is by no means conclusive. It would, in fact, be somewhatremarkable if these were present upon our plates, since they aremuch fainter in the titanium flame spectrum than the fluting atX 5598, which is very faint and difficult in As we go toward longer wave-lengths, the successive flutingsbecome stronger in the spot spectrum, until in the deep red theyform its most characteristic feature. The fluting at X 7055 is espe-cially noticeable, as it occurs in a region of the spectrum in whichthere are but few strong lines to interrupt its continuity. A com-parison of this fluting in the spot and in the flame of the electric arc(negative copy) is given in Plate II
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspectru, bookyear1895
