The Armchair Astronomer, Volume 1 (Nebulae) October 1, 2015 by Brian Ventrudo [featured_image] Download Download is available until [expire_date] Version [version] Download 28 File Size 44.17 MB File Count 1 Create Date October 1, 2015 Last Updated October 1, 2015 The Armchair Astronomer, Volume 1 (Nebulae)