Asteroid 2004 BL86 will be visible in parts of the sky tonight. Visibility is expected to peak around 9 p.m. ET, as shown in this NASA graphic. Sky & Telescope hide caption itoggle caption Sky & Telescope The Two-Way An Asteroid Is Passing Very Close To Earth Today. Here's How To See It January 26, 2015 At its closest point, asteroid 2004 BL86 came within about 750,000 miles from Earth — or almost three times farther away than the moon.