Mercury, Venus, Mars, Jupiter and Saturn are lining up — in that order — for the first time since December 2004.

On Friday, June 24, the phenomenon will be the most visible to stargazers.

The five so-called "naked-eye" planets were visible beginning on June 3 and 4, and the lineup could be seen with binoculars — but only for about half an hour, before Mercury was lost in the glare of the sun. .

Four of the naked-eye planets have been lining up in the for the past few months, according to NASA

By September, Venus and Saturn will no longer be visible to most observers. 

Another astronomical phenomenon will be visible in June: the M13 globular star cluster, a tightly packed spherical collection of stars