Photo: The Canadian Press. All rights reserved.

Canadian astronaut Chris Hadfield holds a copy of his book "An Astronaut's Guide to Life on Earth" in Montreal on November 27, 2013. THE CANADIAN PRESS/Ryan Remiorz

Former Canadian astronaut Chris Hadfield says he has no idea who will star in the pilot for a TV sitcom based on his first book: "An Astronaut's Guide to Life on Earth."

"My wife watches a lot more television than I do, so she's got some ideas," Hadfield said Monday. "I think that character will probably be as close to reality as any character in the show."

Hadfield told The Canadian Press he was first approached by Warner Brothers about a year ago after they expressed interest in the book.

"They wanted to see if it can be made into something on television and then they worked with the major networks in the U.S.," he said, adding the comedy is expected to have the same title as the book.

"In August, my wife and I went down and went around with the president of Warner Brothers to all of the major U.S. networks."

Hadfield said ABC decided to take it on, adding he's now working on the pilot with writers to ensure they have enough material.

"I think the way the cycle works is they film pilots in the winter (and) spring and then, assuming this all works and it's going really well so far, it would be on television in the fall," he added.

The sitcom, he noted, would combine the difficult, technical work of being an astronaut and the demands of family life.

"The idea of it (is) how do you integrate the complexity and demands of this particular type of human being into the normality of life," he said.

Hadfield made the comments in an interview from Toronto where he was officially launching his second book: "You Are Here: Around The World in 92 Minutes."

It's a compilation of about 200 of the 45,000 photos that Hadfield took during a five-month mission aboard the International Space station that ended in May 2013.