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Perot, A. Sur la longueur d'onde de 

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Sur la raie verte de la 



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21657 



Sur lemouvement apparent 



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Peters, J[ean]. Tafeln zur Berechnung 

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Petersen, N. M. Vandstands- 

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Phllippot, M. The legal time in 

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Phillips, T[heodore] E[velyn] R[eece]. 

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Liter im report of the 



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Micrometrical measures of 



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The markings on Jupiter. 



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Position of the red spot 



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Picaxd, Emile. Das Wissen der 

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Picaxt, IJuc]. Sur une equation dn 

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Observations de I'eclipse 



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21669 



Pickering, Edward C[harles]. Nova 



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Stars having peculiar 



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The variable star, 232848, 



Z Andromedae. Cambridge Mass. 

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Photometric observations 



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 23 25 27-30 39 39-44 51 75 82 105 110 

 114 122 127 187 192 200 261) ; A.str. 

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21673 



Adopted photographic 



magnitudes of 96 polar stars. Cam- 

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Five variable stars having 



secondary minima. Cambridge Mass. 

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Photographic magnitudes 



of asteroids. Cambridge Mass. Harvard 

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Periods of 25 variable 



star in the small Magellanic cloud. 

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Variability of the Pole 



star. Cambridge Mass. Harvard Coll. 

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Photometric measurements 



of Nova Geminorum, No. 2. Cambridge 

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