V.— SUPPLEMENTARY NOTE ON VeENUsS.— By A. CAMERON, 
Yarmouth, N. 8. 
(Read 10th May, 1897.) 
In the Transactions of this Institute for 1892-3, (Second 
Series, Vol. I, Part 3), there is an article of mine on “ Venus in 
Daylight to Eye and to Opera Glass.” On page 345, the late 
M. Trouvelot of the Observatory at Meudon, is quoted to the 
effect that in a clear sky Venus may be seen in daylight with 
the naked eye, when her angular distance from the sun is not 
less than 10° at inferior conjunction, and not less than 5° at 
superior conjunction. 
On pages 347-8 particulars are given of a naked eye observa- 
tion made at noon on July 6, 1892, when the angular distance 
between Venus and the Sun was less than 7°. This was a little 
over three days before inferior conjunction. Three of these 
conjunctions have occurred since then—in February, 1894, 
September, 1895 and April, 1897—but, so far as I know, no 
closer observation was got at any of them. On the morning of 
February 14th, 1894, 1 saw Venus with naked eye, when less 
than two days before inferior conjunction; but this was not a 
“daylight” observation as defined in the article cited; and, 
besides, the elongation was more than 7°. This observation was 
one of a pair, which, as a pair, had some rather curious features. 
(See Series IL, Vol. L, pp. 391-4.) 
The chief purpose of this note is to make a few additions to 
what was said in the Daylight article about observations made 
near superior conjunction. M. Trouvelot thought that Venus 
should be as easy to the naked eye in full daylight, when only 
5° from superior conjunction as when 10° from inferior con- 
junction. My reasons for thinking so too are given on pages 
349-52. But when writing that article, the best reliable 
observation of this kind I had been able to make near any 
superior conjunction was made thirty-six days after the one in 
May, 1893, when the elongation was 10°. (p. 351.) 
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