The pair have invested in "all the gear" for the stargazing hobby and have a viewing dome in the garden of their Suffolk home.
A source told The Sun newspaper's Bizarre column: "Ed doesn't have many nights off — and will have even fewer when he goes on tour. But when he does, he loves to be able to look at the night sky.
"He has all the gear to observe the constellations and knows a thing or two about it all, which might surprise a lot of people.
"There is a powerful telescope for him to use for his stargazing and, because he lives out in the countryside, it is really dark and the visibility is great.
"It has been a fun thing to learn about. Looking up at the night sky can really put things into perspective."
