It was discovered by Annie Jump Cannon and Margaret W. Mayall during their work on an extended Henry Draper Catalogue (the catalogue was built between 1918 and 1924).
Туманность была обнаружена Энни Джамп Кэннон и Маргарет Майол между 1918 и 1924 годами во время работы над Каталогом Генри Драйпера.