On February 16, 2017, here in the Western Hemisphere, Venus will reach its greatest illuminated extent. Those of you in Australia, New Zealand, Asia will see this on February 17.
You shouldn’t need an “event” to look up at the night sky in wonder, but this might be a reason to look up tonight and know a bit more about what you are seeing.
Look for Venus in the west after sunset and you will also see Mars nearby to the left (south) and a bit higher. That “evening star” is at its most brilliant because its day/illuminated side is covering more square area of Earth’s sky than in its 9.6-month appearance in the evening sky.
If you looked through a telescope, you would see that Venus’ disk is just a bit more than one-quarter illuminated by sunshine, and the full Venus is always on the far side of the sun from us. So, we are seeing Venus as a crescent at its greatest illuminated extent – and still, it is spectacular.