List of protoplanetary nebulae

This is a list of protoplanetary nebulae. These objects represent the final stage before a planetary nebula. During this stage, the red giant star begins to slowly expel its outermost layers of material. A protoplanetary nebula usually glows by reflecting the light from its parent star. This stage is usually brief, typically lasting no more than a few thousand years.

List

Image	Name	NGC	Other designation	Date discovered	Distance (ly)
	Boomerang Nebula		Centaurus Bipolar Nebula	1980	5,000
	Calabash Nebula		OH231.8+4.2	1786	4,200
	Egg Nebula		CRL 2688	1996	3,000
	Frosty Leo Nebula		IRAS 09371+1212	1976	3,000
	Red Rectangle Nebula		HD 44179	1973	2,300 ± 300
	Cotton Candy Nebula		IRAS 17150-3224
	Water Lily Nebula	1999	IRAS 16594-4656
			IRAS 22036+5306		6,500
	Westbrook Nebula		IRAS 04395+3601		3,600 ± 700
			IRAS 13208-6020
			IRAS 20068+4051
	LL Pegasi		IRAS 23166+1655		4,000
	M1-92		IRAS 19343+2926	1946	8,000
			IRAS 19024+0044		11,000
			IRAS 19475+3119		15,000
			IRAS 23304+6147		15,000
	Roberts 22 (MR 22)		AFGL 4104

See also

• Lists of astronomical objects