176 



ON THE SQUARE BAE MICROMETER. 



Observed Transits. (See article 12.) 





„, 



Comparison. 



Comet North. 



t\. 



*'«• 



h. XD« 8. 



m. B. 



j 16 47 28.0 



47 38.6 



50 57.5 



51 8.0 



55 25.0 



55 35.3 



59 23.4 



59 35.0 



17 4 30.2 



4 46.3 



7 59.6 



8 15.5 



Star North. 



'<)• 



h- 



*2 m 



h- 



m. s. 



m. ». 



m. f. 



m. 0. 



45 42.5 



45 51.2 



46 42.0 



46 50.5 



49 12.4 



49 21.2 



50 12.0 



50 20.6 



53 39.2 



53 48.7 



54 38.7 



54 48.0 



57 38.5 



57 48.5 



58 37.9 



58 47.5 



2 50.2 



2 56.1 



3 49.5 



3 55.5 



6 20.0 



6 26.2 



I i 



7 20.6 



7 25.5 1 



Reduction. 



Comparison. 



Mean 



Chron. corr. 

 Sid. time 



Red. 

 Cam. M. T. 



h(t't + t\). 



m. 



16 47 33.30 



2.75 



55 30.15 



59 29.20 



4 38.25 



7.55 



16 57 43.54 



28.0 



16 57 15.5 

 7 24 35 



9 32 40 



H'i + 'i* 



m. 



46 16.60 

 49 46.60 



54 13.70 

 58 13.20 



3 22.80 

 6 53.40 



56 27.72 



Corr. for jo 7 



(See p. 177.) 



m. 



+1 16.70 

 16.15 

 16.45 

 16.00 

 15.45 

 14.15 



+1 15.82 



0.12 



+ 1 15.70 



10.5 

 10.3 

 11.6 

 16.1 

 15.9 



12.50 



log( 



cos 8 







50.8 

 50.8 

 50.0 

 49.4 

 53.4 

 54.4 



51.47 





Diff. 



40.2 

 40.3 

 39.7 

 37.8 

 37.3 

 38.5 



38.97 



n 1.59073 



n 0.87506 



9.99606 



2.46185 

 + 4' 49.63 



The above is a convenient form of re duct 



Its three lower 



con- 



tain the determination of the local mean time of observation; the difference 



of right ascension, equation (1), corrected for position zero, determined on p. 



177; and the difference of declination determined by (5), the declination being 

 small. 



