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72 

June 5, 1912. 

Nova Gem 2. Spectrum 

I 37641 rather dense
Br. bands to red of H beta, H gamma, H delta & H epsilon, also K but not quite so strong as K.

[[margin]] JD 19476 March 14 [[/margin]]
I 37645 thinner plate.
Brightness appears equally strong at beta, gamma, delta, epsilon, but very faint at K.
3 bright lines or spaces bet. H gamma and H delta.

I 37463 good plate.

I 37644 perhaps best for describing

I 37646 Iso.

[[margin]] JD 19477 Mch. 15 [[/margin]]
I 37650
Very poor.
H beta brightest, H gamma, H delta, H epsilon in decreasing brightness. Very little more seen.



73

June 5, 1912

[[margin]] 19478 JD Mch. [[strikethrough]] 15 [[/strikethrough]] 16
I 37651  Best. Dark H gamma seen as a narrow line.
     53  Iso. but not very good, 
     57  other dark hyd. n.s. clearly but dark H & K are very strong, equally intense, bright K fainter than bright H.

Order of br. lines H beta, H gamma, H delta, H epsilon and K.
2 bright lines bet. H gamma & H delta, being the same as the two of shorter lambda in I 37645, the one of greater lambda having disappeared. 2 strong dark bands bet. H beta and H gamma. 4922 and 5014 bright. [[strikethrough]] Not seen [[/strikethrough[[ Seen very faintly on the 14th as bright lines.

[[margin]] JD 19470 Mch. 17 [[/margin]]
I 37660
     61 Iso. Enlarged. Dark hyd. not seen. H gamma has dark line on edge of greater lambda.
H beta shows a dark line of reversal. Dark H & K are distinctly fainter than on March 16.

[[margin]] JD 19480 Mch. 18 [[/margin]]
I 37664 poor focus. H beta, H gamma, H delta have dark lines of reversal
     66 shine