This planet will be morning star till the 13th, after which it will be
evening star till the end of the month. It rises on the 1st at 3:41 a.
m.; sets on the 15th at 7:41 p. m., and on the 30th at 8:07 p. m., on
which latter date it is possibly visible to the naked eye. Its motion
during the month is direct, and amounts to 62° 30′ 31.5″. On the 17th
at 6:00 a. m. it is nearest the sun; on the 12th at 1:00 a. m., 6° 20′
north of Venus; on the same date, at midnight, is in superior conjunction
with the sun; that is, it is in a line with the earth and sun, and in
the order, Earth, Sun, Mercury; on the 23rd, at 3:00 a. m., 1° 10′ north
of Jupiter; and on the 23rd, at 7:05 a. m., 6° 30′ north of the moon.
Diameter decreases from 5.6″ to 5.4″.