Let’s Enjoy the Medley of the Moon and Jupiter

In the southern to south-western evening sky, Jupiter shines particularly brightly. On May 15, the Moon appears to pass close to Jupiter.
Because of the Earth’s rotation, the stars in the night sky appear to revolve around us, taking roughly 24 hours for each revolution.

The Moon orbits around the Earth, but the apparent motion resulting from just its orbital motion alone is very gradual. The result is that from day to day its apparent position compared to the background stars moves from west to east. The speed of this movement is approximately 13 degrees (26 times the angular diameter of the Moon) per day. The Moon completes 1 lap through the night stars in a little over 27 days.
In contrast, Jupiter moves very little compared to the Moon, so the Moon appears to pass close to Jupiter and overtake it about once a month.

For Tokyo, the two appear their closest at 15:44, coming as close as 2 degrees. Because this is during the day, Jupiter cannot be seen with the naked eye. It should be possible to observe the waxing gibbous moon and Jupiter shining close together in the evening sky.