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The '''Footprint nebula''' (Minkowski 92, M1-92, IRAS 19343+2926) is a bipolar [[planetary nebula]] in the [[constellation]] of [[Cygnus]], the swan.<ref>{{cite web|url=http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/minkowskis-footprint/|title=Minkowski’s Footprint, a protoplanetary nebula in Cygnus|accessdate=2019-09-27|publisher=annesastronomynews.com|date=2014-07-16}}</ref> Also known as Minkowski's Footprint, the nebula is composed of two large [[onion]]-like structures. There is a [[star]] situated at the centre of the nebula. Pulsations on the star's surface are causing it to eject large quantities of material to produce as a strong [[stellar wind]].[[electric charge|Electrically charged]] particles in the ejected material shape the surrounding cloud. The nebula is also a [[reflection nebula]] as it reflects the light emmitted by the central star.<ref name=spacetelescope/> The clouds of gas and dust are thought to have a mass of 0.9 [[solar mass]]es.<ref>{{cite journal

The '''Footprint nebula''' (Minkowski 92, M1-92, IRAS 19343+2926) is a bipolar [[planetary nebula]] in the [[constellation]] of [[Cygnus]], the swan.<ref>{{cite web|url=http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/minkowskis-footprint/|title=Minkowski’s Footprint, a protoplanetary nebula in Cygnus|accessdate=2019-09-27|publisher=annesastronomynews.com|date=2014-07-16}}</ref> Also known as Minkowski's Footprint, the nebula is composed of two large [[onion]]-like structures. There is a [[star]] situated at the centre of the nebula. Pulsations on the star's surface are causing it to eject large quantities of material to produce as a strong [[stellar wind]]. [[electric charge|Electrically charged]] particles in the ejected material shape the surrounding cloud. The nebula is also a [[reflection nebula]] as it reflects the light emmitted by the central star.<ref name=spacetelescope/> The clouds of gas and dust are thought to have a mass of 0.9 [[solar mass]]es.<ref>{{cite journal

  |last1=Bujarrabal |first1=V.

  |last1=Bujarrabal |first1=V.

  |last2=Alcolea |first2=J.

  |last2=Alcolea |first2=J.

  |doi=10.1086/306129

  |doi=10.1086/306129

  |bibcode=1998ApJ...504..915B

  |bibcode=1998ApJ...504..915B

  |ref=harv

  |ref=harv

}} [https://iopscience.iop.org/article/10.1086/306129/fulltext/38252.text.html Online]

}}

</ref> The nebula was observed by the [[Hubble Space Telescope]] in the 1990s.

</ref> The nebula was observed by the [[Hubble Space Telescope]] in the 1990s.