Dr Paul Wright, a University of Glasgow astronomer, said: “A Conjunction is when two objects stand very close in the night sky.
“And tonight, Jupiter and Saturn are going to be quite close together.
“They are going to be six and a half arc minutes separated in the sky.
“Just to put that into context, the Moon is about about half an arc minute.
“And so, Jupiter and Saturn are going to be much, much closer together than the diameter of the Moon, as it appears to the naked eye.”