National Astronomical Observatory of Japan

The Moon Approaching Close to Jupiter (May, 2017)

May 7, 2017, 21:00, the sky of Tokyo
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Let’s Observe the Spectacle of the Moon and Jupiter!

In the early evening sky, Jupiter shines very brightly in the south to south-east. It is a good chance to observe Jupiter. Jupiter reaches culmination around 22:00 in the beginning of May. After that, the timing when Jupiter reaches culmination gradually becomes earlier. In late May, Jupiter reaches culmination around 20:00 right after the sky gets completely dark.

On the 7th and 8th, the Moon waxing towards full phase appears to pass close to Jupiter. You might not care about the Moon usually, but the Moon moves with respect to the stars every day. And when the Moon passes close to bright stars like Jupiter, it will be a good chance to see that the position of the Moon changes every day. How about spending time to watch the Moon changing its position every day?

Reference: Ephemeris Computation Office

You can look up the rising and setting times for the Sun and the Moon, and the phases of the Moon in the “Koyomi Station” of the NAOJ Ephemeris Computation Office. You can find the appearance of the Moon and planets as seen from a typical city under “Sky Viewer.”