Water Lily Nebula

Water Lily Nebula
Reflection nebula
Protoplanetary nebula
	HST image of the Watery Lily Nebula by Sun Kwok, Bruce Hrivnak, and Kate Su
Observation data: J2000 epoch
Right ascension	17h 03m 10.08s
Declination	−47° 00′ 27.7″
Constellation	Ara
Designations	IRAS 16594-4656, 2MASS J17031007-4700277, PN G340.3-03.2
	See also: Lists of nebulae

The Water Lily Nebula, in the southern constellation of Ara, is a pre-planetary nebula also known as IRAS 16594-4656, in the process of developing to a planetary nebula. It was discovered by Bruce Hrivnak and Sun Kwok in 1999.^[3] The Water Lily is one of the pre-planetary nebulae containing polycyclic aromatic hydrocarbons, organic hydrocarbons otherwise constituting the basis for life.

References

^ ^a ^b Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
^ "NAME Water Lily Nebula". SIMBAD. Centre de données astronomiques de Strasbourg.
^ Hrivnak, B.J.; Kwok, Sun; Su, Kate Y.L. (October 1999). "The discovery of two new bipolar proto-planetary nebulae: IRAS 16574-4656 and IRAS 17245-3951". Astrophysical Journal. 524: 849–856.