THE ORBIT OF NEPTUNE. 



1795, May 8. 



Name of 

 star. 



N. 



T. 



D'. 



D. 



B. A. 



C. 



C. 



W. 







h. m. s. 



s. 



s. 



s. 



s. 



s. 





P Virginis, 



n 



11 39 42.67 



— 3.80 



— 1.90 



1.86 



22.99 



21.09 







J Corvi, 



2 



12 18 55.85 



+ 0.81 



+ 0.40 



17.31 



20.65 



21.06 



1 



g Virginis, 



2 



12 22 52.10 



— 0.80 



— 0.30 



13.84 



22.34 



22.04 



2 



.4, Virginis, 



1 



12 43 22.00 



— 0.68 



— 0.29 



43.53 



22.11 



21.82 



1 



a Virginis, 



3 



13 14 4.23 



— 0.24 



— 0.12 



26.09 



22.10 



21.98 



4 



h Virginis, 



2 



13 21 50.55 



— 0.44 



— 0.22 



12.67 



22.56 



22.34 



3 



K Virginis, 



3 



14 1 88.57 



— 0.40 



— 0.20 



0.09 



21.92 



21.72 



6 



A Virginis, 



3 



14 7 41.80 



+ 0.20 



+ 0.10 



3.81 



21.81 



21.91 



6 



2 Libra;, 



2 



14 12 4.45 



— 0.11 



— 0.05 



26.53 



22.19 



22.13 



5 



e Libro3, 



n 



15 12 46.07 



— 0.34 



— 0.17 



7.89 



22.16 



21.99 



2 









May 10. 











a Virginis, 



2 



13 14 3.55 



— 0.24 



— 0.12 



26.09 



22.78 



22.66 



1 



i Virginis, 



2 



13 15 32.90 



+ 0.06 



+ 0.03 



55.99 



23.03 



23.06 



1 



A Virginis, 



2 



14 7 41.20 



+ 0.22 



+ 0.11 



3.82 



22.40 



22.51 



2 



2 Librte, 



2 



14 12 3.40 



-0.11 



— 0.06 



26.53 



23.24 



23.19 



2 



/I Librae, 



1 



14 37 45.10 



+ 0.39 



+ 0.20 



7.79 



22.30 



22.49 



1 



f Librte, 



2 



14 42 54.95 



— 0.06 



— 0.03 



17.88 



22.99 



22.96 



1 



We have then 



Clock time of transit of planet, 

 Correction for clock and instrument, 

 Concluded apparent Right Ascension, 



14 



May 8. 



11 36.50 

 + 21 .94 

 14 11 58.44 

 212° 59' 36".6 



May 10. 



14 11 23.50 



+ 22.82 

 14 11 46.32 



212° 56' 34".8 



Declinations. 



We use Bessel's refractions. For the height of the Barometer, and the tem- 

 perature of the air, we have : 



May 8, 



May 10. Beginning of observations, . 

 End 



Bar. = 28 pou. 6 1. ; 

 Bar. =28 pou. 3.11. 

 Bar. = 28 pou. 1.5 1. : 



; 30.37 Eng. ; T= 13 Reau. = 61.2 Fah. 

 : 30.12 Eng. ; T = ld.7 Reau. = 62.8 Fah. 

 : 30.07 Eng.; ?>= 13 Reau. = 01.2 Fah. 



The equatorial points on the circle are concluded as follows 







May 8. 











May 10 







Name of 

 star. 



Observed 

 Z. Dist. 



Refrac- 

 tion. 



Declination. 



Equato- 

 rial point. 



Name of 

 star. 



Observed 

 Z. Dist. 



Refrac- 

 tion. 



Declination. 



Equato- 

 rial point. 











48° 49' 











48° 49' 





' " 



/ // 





ff 





// 



f n 



1 It 



'/ 



S Corvi, 



64 9 52 



1 57.3 



— 15 22 29.0 



20.3 



a Virginis, 



58 53 2 



1 34.2 



— 10 5 17.8 



18.9 



q Virginis, 



57 7 11 



128.0 



— 8 19 17.5 



21.5 



i Virginis, 



60 25 54 



1 40.2 



— 11 38 14.2 



20.0 



1/1 Virginis, 



57 13 17 



1 28.4 



— 8 25 26.6 



18.8 



A Virginis, 



61 12 50 



1 43.5 



— 12 25 15.4 



18.1 



a Virginis, 



58 53 



1 84.3 



— 10 5 17.3 



17.0 



2 Libra;, 



59 38 59 



1 86.8 



— 10 46 13.3 



22.5 



h Virginis, 



57 54 5 



1 30.6 



— 9 6 19.0 



16.6 



/J. LibrsE, 



62 4 43 



1 47.3 



— 13 17 10.7 



19.6 



K Virginis, 



58 6 37 



1 31.4 



— 9 18 43.0 



25.4 



{' Libra;, 



59 50 50 



1 37.9 



— 11 3 9.5 



18.4 



A Virginis, 



61 12 48 



1 43.5 



— 12 25 15.2 



11.3 













2 Librae, 



59 38 57 



1 86.9 



— 10 46 13.1 



20.8 













e Libras, 



58 22 13 



1 32.4 



— 9 34 81.7 



13.7 













