The monthly title, which is named after the TV show, will be on sale from 24 May.
The Sky at Night is BBC Magazines' first launch since the BBC's director-general, Mark Thompson, completed his review of the corporation's commercial activities, concluding that its publishing division must focus on core BBC genres.
Andy Benham, the publisher of BBC Wildlife, BBC History and BBC Music, will also publish The Sky at Night, while Paul Parsons, the editor of Origin's science and technology magazine Focus, will be the managing editor. Sir Patrick Moore, the eminent astronomer who features in the TV programme, will be a contributing editor.
The first issue will include ten pages of editorial edited by Moore.
Each issue of the 108-page magazine will carry a free 700Mbyte CD-Rom, 13 pages of product reviews and an eight-page pull-out star-watching guide.
The Sky at Night will retail at £3.99 with an advertising page rate of £1,275.