1835.] Occultailons of stars at Madras. 59T 



Hiiles and between the second and third 19,500,000 miles ; 

 the former giving the time for light to pass over 95 million* 

 of miles (the distance from the sun to the earth) 

 \hn. 36?. 8 and the latter 13m. 47.?. 4 : the discordance 

 between these results appears to arise mainly from an er- 

 ror of about 40 seconds in the third observation, but this 

 in no way interferes with the intentions of this sketch 

 which aims at merely a rude description of the modus 

 operandi, (and a very rude one it is too !) and not 

 to determine from three observations the value of an 

 element which is already known from the result of 

 thousands. 



ASTRONOMICUS. 



VI. — Calculation of all the occultatiom visible at 

 Madras during the present year. — By Goday 

 Vencat Jucgarow. 

 To the Editor of the Madras Journal 



of Literature and Science, 



Sir, 



The handsome reception which you gave my tables oft 

 a former occasion has encouraged me to make a further 

 attempt — accordingly in the following pages I have given 

 the result of my calculation of all the occultations which 

 will be visible at Madras during the present year, and 

 beg you will kindly give them insertion in your excellent 

 Journal. 



As the accuracy of calculation depends upon the me- 

 thod employed, I here annex the formula and an explana- 

 tion to enable the enquirer to ascertain the correctness 

 attained. 



The assumption made is, that the motions of the Moon 

 in right ascension and declination combined with the 

 elFects of parallax is equable for the interval of an hour, 

 and thig is not very far from being the case, thus — ■ 



