[ ns 3 
and one Winter, equal in Length to the other three 
Seafons. 
The Sun's great Diftance below the Horizon of 
Venuss Poles, will make her Winters much more un- 
comfortable than at the Poles of our Earth, where 
they have Twilight more than half the Winter time ; 
unlefs (he be furrounded with an Atmofphere capab >e 
of occafioning a Twilight, at lead as long in propor- 
tion to her Winter, as our Twilight is to ours. But 
this can hardly be fuppos'd ; becaufe always, when we 
fee Venus , (he appears with the fame conftant Sere- 
nity ; and therefore I am apt to beleive fhe has a Satel- 
lite, to fupply, infome meafure, the Abfence of the 
Sun $ as our Moon does to our Earth's Poles, for one 
Half of the Winter conftantly, without fetting, from 
the firft to the third Quarter. 'Tis true, that we arc 
inconveniently pofited, with regard to Venus tot feeing 
her Satellite (if fhe has one) ; becaufe, when her Moon 
or Satellite has its enlighten'd Side toward us, it may 
be too far diftant to be feen, becaufe Venus is then 
beyond fhe Sun, and, confequently, furtheft from us; 
and when fhe is betwixt us and the Sun, or there- 
abouts, her full Moon would have its dark Side to us : 
And tho' Venus be then neareft the Earth, yet her 
Satellite could no more be feen by us, than we can 
fee our own Moon at her Conjunftion. When Ve- 
nus is at her greateft Elongation, we (hould have only 
one Half of the enlighten'd Side of her full Moon 
turn'd towards us 5 and even then, perhaps, on ac- 
count of its Smallnefs, it may be too far diftant to 
be feen by our Telefcopes. But of this only By-the- 
bye. 
11. At the Tropics, the Sun in Summer will con- 
tinue for about 1$ of our Weeks together above the 
S Horizon 
