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The sky of Tokyo, Calendar, Planets (February, 2018)

The sky of Tokyo

The sky of Tokyo (8:00 p.m. Mid-February)
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Calendar (February)

2Occultation of Regulus(Part of the Tohoku region and East Japan)
8Last Quarter Moon
11National Foundation Day [Kenkoku-Kinen-no-hi] (national holiday)
12Holiday
16New Moon / Partial Solar Eclipse (not visible from Japan) (Reference: Local Prediction of the Solar Eclipse)
17Mercury at superior conjunction
23First Quarter Moon

The days for the peak activities of the meteor showers are based on the predictions of IMO(International Meteor Organization).

Planets

Mercury
Mercury reaches superior conjunction on February 17. Its apparent location is close to the Sun, so it is not suited for observation.
Venus
Venus shines in the lower western sky just after sunset, but its apparent location is close to the Sun, making observations difficult.
Mars
At the beginning of the month, Mars is located in the constellation Scorpius and moves east (direct motion). In the middle of the month, it moves to the constellation Ophiuchus. It can be seen in the southern sky before sunrise. Its brightness is 1.2 magnitude to 0.8 magnitude.
Jupiter
Jupiter moves east (direct motion) in the constellation Libra. Seen from Tokyo, it rises around midnight and can be seen in the southern sky before sunrise. Its brightness is - 2.0 magnitude to -2.2 magnitude.
Saturn
Saturn moves east (direct motion) in the constellation Sagittarius. It can be seen in the southeastern sky before sunrise. Its brightness is 0.6 magnitude.

Reference: Ephemeris Computation Office, NAOJ

With the “Sky Viewer” you can easily explore the appearance of a typical urban night sky (planets and constellations are visible). The Celestial Phenomena section of the glossary explains the planetary phenomena terms: greatest elongation, opposition, conjunction, stationary, etc.