Astronomy:List of protoplanetary nebulae

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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 with 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		About 5,000
	Calabash Nebula		OH231.8+4.2		About 4,200
	Egg Nebula		CRL 2688	1996	About 3,000
	Frosty Leo Nebula		IRAS 09371+1212		About 3,000
	Red Rectangle Nebula		HD 44179	1973	2,300 ± 300
	Cotton Candy Nebula		IRAS 17150-3224
	Water lily nebula		IRAS 16594-4656
File:IRAS 22036+5306.tif			IRAS 22036+5306		About 6,500
File:Westbrook Nebula.tif	Westbrook Nebula		IRAS 04395+3601
File:IRAS 13208-6020.tif			IRAS 13208-6020
			IRAS 20068+4051
	LL Pegasi		IRAS 23166+1655
	M1-92		IRAS 19343+2926		About 8000
			IRAS 19024+0044		11 000
	Minkowski's Butterfly		M2-9		2 100
	Roberts 22 (MR 22)		AFGL 4104

See also

• Lists of astronomical objects