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physical object > natural object > celestial body > nebula > H II region > gaseous nebula > expanding emission nebula > planetary nebula

planetary nebula comparison table

Subject	has purpose	has expansion velocity	has expansion rate	is an instance of	has orbit period	has synonym	has extent	has illuminating star	be part of	has image	has definition	has distance	has stellar wind spe	has composition	has Messier number
Cat's Eye		typically 10 km/s		planetary nebula		NGC 6543			Draco			3000 light years		enhanced with heavy elements relative to the interstellar medium
Cotton Candy nebula		typically 10 km/s		planetary nebula		IRAS 17150-3224								enhanced with heavy elements relative to the interstellar medium
Dumbbell Nebula	originally to catalog all objects which could be confused with a comet	typically 10 km/s		Messier object		NGC 6853					A planetary nebula of large apparent diameter and low surface brightness.	220 pc		enhanced with heavy elements relative to the interstellar medium	27
Egg Nebula		typically 10 km/s	20 km/s	planetary nebula		CRL 2688						3000 light years		enhanced with heavy elements relative to the interstellar medium
Helix Nebula		typically 10 km/s		planetary nebula		NGC 7293					A planetary nebula with the largest known angular diameter.	140 pc		enhanced with heavy elements relative to the interstellar medium
Helix nebula		typically 10 km/s		planetary nebula		NGC 7293			Aquarius			450 light years		enhanced with heavy elements relative to the interstellar medium
Hourglass Nebula		typically 10 km/s		planetary nebula		MyCn18					A compact H II region in the center of Lagoon Nebula.	8000 light-years away		ionized hydrogen
Hubble 5		typically 10 km/s		planetary nebula		emission nebula			Sagittarius			2200 light years		enhanced with heavy elements relative to the interstellar medium
IC 3568		typically 10 km/s		planetary nebula		emission nebula	0.4 light years		Camelopardalis			9000 light years		enhanced with heavy elements relative to the interstellar medium
M2-9		200 miles per second		planetary nebula		emission nebula			Ophiucus			2100 light years		enhanced with heavy elements relative to the interstellar medium
NGC 2346		typically 10 km/s		planetary nebula	16 days	emission nebula			Monoceros			2000 light years		enhanced with heavy elements relative to the interstellar medium
NGC 2392		typically 10 km/s		planetary nebula		Eskimo Nebula								enhanced with heavy elements relative to the interstellar medium
NGC 3132		typically 10 km/s	9 miles per second	planetary nebula		Southern Ring Nebula	0.5 light year					2000 light years		enhanced with heavy elements relative to the interstellar medium
NGC 3918		typically 10 km/s		planetary nebula		emission nebula	0.3 light years		Centaurus			3000 light years		enhanced with heavy elements relative to the interstellar medium
NGC 5307		typically 10 km/s		planetary nebula		emission nebula	0.6 light years		Centaurus			10000 light years		enhanced with heavy elements relative to the interstellar medium
NGC 6210		typically 10 km/s		planetary nebula		emission nebula								enhanced with heavy elements relative to the interstellar medium
NGC 6751		typically 10 km/s		planetary nebula		emission nebula	0.8 light years					6500 light years		enhanced with heavy elements relative to the interstellar medium
NGC 6818		typically 10 km/s		planetary nebula		emission nebula	0.5 light years		Sagittarius			6000 light years		enhanced with heavy elements relative to the interstellar medium
NGC 6826		typically 10 km/s		planetary nebula		emission nebula			Cygnus			2200 light years		enhanced with heavy elements relative to the interstellar medium
NGC 7009		typically 10 km/s		planetary nebula		emission nebula			Aquarius			1400 light years		enhanced with heavy elements relative to the interstellar medium
NGC 7027		typically 10 km/s		planetary nebula		emission nebula			Cygnus			3000 light years		enhanced with heavy elements relative to the interstellar medium
NGC 7635		typically 10 km/s		planetary nebula		Bubble nebula	6 light-years		Cassiopeia			7100 light years	2000 kilometers per second	enhanced with heavy elements relative to the interstellar medium
Owl Nebula	originally to catalog all objects which could be confused with a comet	typically 10 km/s		Messier object		NGC 3587					A planetary nebula.	600 pc		enhanced with heavy elements relative to the interstellar medium	97
Ring Nebula	originally to catalog all objects which could be confused with a comet	typically 10 km/s		Messier object		M 57					A famous planetary nebula (M57, NGC 6720) in the constellation Lyra.	2000 light years		enhanced with heavy elements relative to the interstellar medium	57
Rotten Egg Nebula		typically 10 km/s		planetary nebula		OH231.8+4.2								enhanced with heavy elements relative to the interstellar medium
Silkworm nebula		typically 10 km/s		planetary nebula		IRAS 17441-2411								enhanced with heavy elements relative to the interstellar medium
Stingray Nebula		typically 10 km/s		planetary nebula		Hen-1357	130 solar systems		Ara			18000 light years		enhanced with heavy elements relative to the interstellar medium

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