Water lily nebula

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Water lily nebula
Observational Data
Designation IRAS 16594-4656
PN G340.3-03.2
Right ascension 17h 03m 10.07s[1]
Declination -47° 00′ 27.74″[1]
Constellation Ara
Type of object Protoplanetary nebula
Astrometry
Distance from Earth 12,035 ly[2]
Proper motion RA: 0.155 mas/yr<refname=simbad/>
Dec.: 1.882 mas/yr[1]
Parallax 0.8828±0.1962 mas[1]

The Water lily nebula (IRAS 16594-4656, PN G340.3-03.2) is a protoplanetary nebula in the constellation of Ara.[3] It is one of a number of such nebulae where complex organic molecules have been discovered that possess aliphatic or aromatic structures. Unsurprisingly, the nebula is rich in carbon.[4] The nebula has a core/bipolar structure.

The nebula is thought to lie 12,035 light years from Earth.[2]

References

  1. 1.0 1.1 1.2 1.3 Water Lily Nebula from the SIMBAD Astronomical Database
  2. 2.0 2.1 Vickers, S., Frew, D., Parker, Q. and Bojičić, I. (2014). New light on Galactic post-asymptotic giant branch stars – I. First distance catalogue. Monthly Notices of the Royal Astronomical Society, 447(2), pp.1673-1691. arXiv:1403.7230 [astro-ph.SR]
  3. Complex Organic Molecules Form Quickly In Old Stars. Retrieved on 2018-10-04.
  4. Lagadec, E. et Al. (2011). A mid-infrared imaging catalogue of post-asymptotic giant branch stars. Monthly Notices of the Royal Astronomical Society, 417(1), pp.32-92. arXiv:1102.4561 [astro-ph.SR]