386 



TRANSIT OF VENUS, 1874. RODRIGUEZ. POINT COTON. 



Time by Chronometer 

 Poole 1086 



A moment after, a black haze was discernible, but from the 

 great agitation of the Sun's limb (the morning being some- 

 what cloudy) it was not distinctly defined, and did not 

 visibly change colour. The moment of total disappearance 

 of black hazy drop as nearly as could be guessed was 9. 57. 3 - 



At Egress. 



Agitation of Sun's Limb not so great. 



First appearance of brown haze 1. 25. 39'6 



First appearance of black hazy drop, not very distinctly 



marked 1. 25. 48'1 



Appearance of light all round the planet at circular contact ... 1. 26. 26'9 

 The illumination of the outer limb disappeared from the whole 



arc of the planet outside the Sun, and was confined to the 



quarter farthest away from the vertex at about 1 . 30. OO 



Disappearance of illumination from the quarter of Venus 



farthest from vertex 1. 40. 40 



With the corrections of the chronometer Poole 1086 given on page 383, 

 assuming the Latitude 19. 40'. 54", Longitude 4 h . 13 m . 59 9> 5 East of 

 Greenwich, we have the following results of Commander Wharton's obser- 

 vations : 



Phenomenon observed. 



Recorded Time 



by Solar 

 Chronometer 

 Poole 1086. 



Local 



Sidereal 



Time. 



Greenwich 



Sidereal 



Time. 



Local Tabular 

 Distance of 



Centers of Sun 

 and Venus. 



Internal Contact at Ingress. 



" Simple internal contact " 



" Total disappearance of black hazy 

 drop." 



h m s 



9. 56. 26*4 

 9. S/. 3'o 



h m a 

 1 I. 52.54'3 



ii. 53. 3ro 



h m s 



7. 38. 54-8 

 7. 3g. 3r5 



1 5. 3g'oi 

 15.37-86 



