National Astronomical Observatory of Japan



Astronomical Information

Astronomical Events Information

Pickup information

February, 2017, 1hour after sunset, the sky of Tokyo

Venus Reaches Its Greatest Brilliancy

Shining the brightest in the western sky dyed in the colors of sunset, Venus reaches its greatest brilliancy on the February 17. During these days its brightness reaches up to -4.6 magnitude, which is about 170 times brighter than a 1st magnitude star. Around these days, if you find the first star, it might be Venus because the planet shines brightly after sunset.


See more

Index of 2017 Astronomical Events Information Index of Astronomical Events Information