Look to the western horizon at sunset on Feb. 20 to witness an incredible sight, as three planets shine below the slender crescent of the waxing moon, with Jupiter glowing high overhead in the winter sky.
The upturned sickle-shape of the 18%-lit moon will appear 40 degrees above the horizon as the sun sets, with a string of bright "evening stars" representing Venus, Mercury and Saturn arrayed beneath, fighting for attention in the glow of the setting sun.
