Six planets will be visible in the sky tonight, forming an astronomical alignment known as a "planetary parade," and you can watch it live online.

Mars, Jupiter, Uranus, Neptune, Saturn and Venus all meet up together on the same side of the sun in a wide arc above Earth — and most are visible to the naked eye under clear night skies. The Virtual Telescope Project in Italy is offering viewers a chance to catch this mesmerizing planetary alignment during a free webcast today (Jan. 25).

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project will stream live telescope views of all six of the planets in marching order. You can watch the livestream courtesy of the Virtual Telescope Project directly on their website or YouTube channel.

This type of astronomical lineup is fairly common, but what makes this month's planetary parade extraordinary is the number of visible bright planets, including Mars, Jupiter, Saturn and Venus, which doesn't happen every year. While those four planets are bright enough to be seen by the unaided eye, spotting Uranus and Neptune requires a pair of binoculars or a telescope.

Astronomers say that while this event might be overhyped as some type of "rare alignment," it's actually a regular occurrence in our night sky. "It's not exactly a rare event, but it's a rare enough event that allows us, in our really super fast-paced world, to give us an excuse to look up and be like 'Oh, wow. These are other worlds that we're looking at,'" Alex Polanski, an exoplaneteer from the Lowell Observatory, told Space.com. "It's really cool to be able to sort of get a family photo, in a way, of the entire solar system."