BBC Sky at Night

PICK OF THE MONTH

Mercury

Best time to see: 22 September, from 1 hour before sunrise
 Altitude: 7° (low)
 Location: Leo
 Direction: East
 Features: Phase, surface markings
 Recommended equipment: 150mm or larger

Mercury isn't visible at the start of the month when it will be an evening object setting before the Sun and too faint to be seen under daytime conditions. Inferior conjunction occurs on 6 September when Mercury lines up with the Sun, passing 3.8° to the south of the Sun's centre.

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