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The Spiral planetary nebula is located around 1,800 [[light year]]s from [[Earth]], though a few estimates are larger, putting it at close to 3,000 light years.<ref name=distRef/><ref name=apod/> The nebula covers an area of sky equivalent to 163.4&nbsp;×&nbsp;108.2 arcseconds, meaning it is around 1.4&nbsp;×&nbsp;0.95 light years in size.<ref name=danehkar/> The nebula has a [[radial velocity]] of -9.5&nbsp;km/s, the negative sign indicating it is approaching Earth and a temperature of (1.31±0.05)×10⁴&nbsp;kelvin.<ref name=annesastronomynews>[http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/ngc-5189-by-robert-gendler/ NGC 5189, a planetary nebula in Musca] from annesastronomynews.com</ref><ref name=Sabin>Sabin, L., Vázquez, R., Lopéz, J. and García-Diaz, M. (2011). The multi-polar planetary nebula NGC 5189. ''Proceedings of the International Astronomical Union'', 7(S283), pp.490-491. [https://arxiv.org/abs/1203.1297 arXiv:1203.1297]</ref> As with the majority of other planetary nebulae, there is a [[star]] (specifically a [[white dwarf]]) at the heart of the nebula. The star is designated HD&nbsp;117622.

The Spiral planetary nebula is located around 1,800 [[light year]]s from [[Earth]], though a few estimates are larger, putting it at close to 3,000 light years.<ref name=distRef/><ref name=apod/> The nebula covers an area of sky equivalent to 163.4&nbsp;×&nbsp;108.2 arcseconds, meaning it is around 1.4&nbsp;×&nbsp;0.95 light years in size.<ref name=danehkar/> The nebula has a [[radial velocity]] of -9.5&nbsp;km/s, the negative sign indicating it is approaching Earth and a temperature of (1.31±0.05)×10⁴&nbsp;kelvin.<ref name=annesastronomynews>[http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/ngc-5189-by-robert-gendler/ NGC 5189, a planetary nebula in Musca] from annesastronomynews.com</ref><ref name=Sabin>Sabin, L., Vázquez, R., Lopéz, J. and García-Diaz, M. (2011). The multi-polar planetary nebula NGC 5189. ''Proceedings of the International Astronomical Union'', 7(S283), pp.490-491. [https://arxiv.org/abs/1203.1297 arXiv:1203.1297]</ref> As with the majority of other planetary nebulae, there is a [[star]] (specifically a [[white dwarf]]) at the heart of the nebula. The star is designated HD&nbsp;117622.

NGC 5189 has a "S" shape structure unlike most other [[planetary nebula]]. Within the nebula are filimentary and knotted structures that can also be found in other planetary nebulae.<ref name=annesastronomynews/> The nebula is comprised of three concentric bubble like structures or rings, wwith the innermost ring expanding at 25.3&nbsp;km/s.<ref name=Sabin/>

NGC 5189 has a "S" shape structure unlike most other [[planetary nebula]]. Within the nebula are filamentary and knotted structures that can also be found in other planetary nebulae.<ref name=annesastronomynews/> The nebula is comprised of three concentric bubble like structures or rings, wwith the innermost ring expanding at 25.3&nbsp;km/s.<ref name=Sabin/>

==References==

==References==