Patchy clouds will likely make it difficult for San Diego County residents to observe the rare sight of seven planets appearing to form a line in the sky on Friday evening, according to the National Weather Service. And it will be hard or impossible to see some of the distant worlds without binoculars or a telescope.

Observers could see up to seven planets line up in the sky after sunset on Friday, but you may need a telescope to see them all.

Look to the sky Friday night for the rare chance to see seven planets lined up. The big picture: Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars will appear together in a "planetary alignment" or "parade of planets" shortly after sunset Friday,

Did you miss the last planetary alignment in January? Well, you're in luck. The next one is on Feb. 28 and is viewable from Bucks County.