4th Edition - Imm Deep Sky Compendium - Mac & Windows Version, plus 6 Foreign Language Versions

by Gary Imm

*** Note - On Dec. 3, 2023, I gave an overview of the Compendium on the YouTube Astro Imaging Channel which can be seen here . *** The 2023 edition (4th edition) of the free Compendium is now finished and available for free download. Since I released the Compendium last year with a Windows-only Excel version of the spreadsheet, I have received many requests for a Mac version. This year, I am…