The Bubble Nebula really is a bubble. It is being blown into this shape by the bright star known as SAO20575, which sits just to the left of centre in this image. This is a giant star of 10–20 times the mass of the Sun.
Walter Faxon: Double - Shell-Pink - Midseason. Mildly fragrant. Vivid shell-pink of a luminous intensity unique in peonies,which fades with age. Fairly floriferous; good stems and foliage. A fairly good flower of value for its striking color. When the flowers are allowed to open indoors, the color is often described as the purest pink found among lactiflora peonies. When left on the plant, the flowers are still very attractive, but the bright pink color will not withstand strong sunlight.