MERCURY

Will be visible for a few evenings during the first of the month, setting

on the 1st at 8:33, one hour and forty minutes after the sun; on the

15th, sets at 7:20 p. m.; and on the 31st at 5:43 p. m. Its diameter

increases from 9.2″ on the 1st to 12″ on the 15th, and then diminishes

to 10.6″ on the 30th. On the 5th, about midnight, and again on the 30th

about 3:00 p. m., it is stationary. At 5:00 p. m. on the 17th it is at

its inferior conjunction, that is, on a line or nearly so, with the

earth and sun, and between these latter bodies. On the 24th, at 1:37 a.

m., it will be only one minute of arc south of the moon, but as both it

and the moon will at that hour be below our horizon, we can not see the

conjunction. On the same date it reaches its greatest distance (aphelion)

from the sun.

The Chautauquan, Vol. 04, May 1884, No. 8 · 第 34 / 120 题