July 3, 2012:
Event: Nova Sagittarii 2012 No. 3 = PNV J17522579-2126215 [V5591 Sgr]
Discovered independently by: - Koichi Itagaki (Yamagata, Japan, reported by Hitoshi Yamaoka, Kyushu University) - Yukio Sakurai (Mito, Ibaraki-ken, Japan)
Discovery Magnitude: - Itagaki: magnitude 10.3 on an unfiltered CCD image taken with a 0.21-m reflector - Sakurai: magnitude 9.9 on four 20-s frames taken with a Fuji FinePix S2 Digital Camera + Nikon 180-mm f/2.8 lens
