The Ring nebula has got its entire visible atmospheres completely flattened by its high intensity dual core polar vortices. This flattened atmospheres phenomenon has similar effects as the Saturn's Rings.

The Helix nebula is a short column hourglass shaped nebula, the mid intensity dual core polar vortices could not flatten its entire atmospheres, these have rendered the elongated eye-shaped hourglass pattern with a wobbling core. The Dumbbell nebula has this similar pattern.

The dual core polar vortices of these two nebulae are caused by their wobbling core.

The Hourglass nebula has low intensity polar vortices with a mildly wobbling core, these have rendered the long hourglass shape and a very circular column pattern.

The lower blue and white color atmospheres of these nebulae have been flattened to a disc shape.

The Southern Crab nebula has polar vortices of mid intensity with a mildly wobbling core, these have rendered the shorter column but very a circular hourglass pattern. The Red Square nebula has this similar pattern.

The Crab nebula and Stingray Nebula have extensively wobbling cores; the precession on rotating axis of those diffused stars has a very wide angle that causes the polar vortices pair to spin in a very unstable manner into these vortical asymmetric patterns. Crab nebula has low intensity polar vortices, unlike others such as Helix nebula, its lower blue and white color atmospheres were not flattened, and were also wobbling extensively. The combined effects of extensively wobbling polar vortices of several atmospheres rendered Crab Nebula with these asymmetric patterns. The flame nebula has this similar pattern.

The Stingray nebula has mid intensity polar vortices and extensive wobbling core.

Do an experiment to spin an imbalanced hourglass structures held near the mid section to wobble them would yield optical images of asymmetric patterns similar to these nebulae.

The Butterfly nebula has low intensity dual core polar vortices and a moderately wobbling core. The green vortical glows are stellar jets and the hourglass shape purple grow is the upward vortical stream of ionized gas, these rendered the appearance of two long columns inside the hourglass pattern.

The NGC 6781, a bubble-shaped nebula has high intensity polar vortices pair with an extensively wobbling core, These had caused the widely opened polar vortices pair to spin the vortically consolidated atmospheres into a spherical shape pattern, as antipodal digons of spherical polygon. The Abell 39 nebula has this similar pattern.

A hypothetical nebula illustrated on left image with a flat disc-shaped atmospheres was not yet found, if existed it would have been caused by high intensity polar vortices pair with a mildly wobbling core.

The OTS 44, a brown dwarf, is remnants of stellar cloud that have vortically consolidated into a disc shape. Its flat circular ring shape patterns are caused by high intensity polar vortices pair with a mildly wobbling core. Its faint grow is generated by a dynamo effect. This is not a planetary nebula, the image is an artist's concept.

This flattened atmospheres phenomenon is similar to Saturn's Rings.

The images at right are some diffuse nebulae. Diffuse nebulae contain no well-defined boundaries, the atmospheres although have symmetrical patterns are still in chaos and have not yet consolidated from the diffused star. Its is known that the colors mainly come from scattered light absorbed by the atoms in the gaseous atmospheres.

Although there was no direct observation evidence for Cat Eye's Nebula on the supposedly existing brown dwarf counterpart of the dwarf star in this bipolar nebula, the binary star system SS443 is an evidence to the vortical interactions of the Cat Eye's Nebula that has this similar type of asymmetrical vortical patterns believed to be caused in a binary star system. (In astronomy a brown dwarf is categorized as a star that has failed to deploy in illumination.)

Based on unisonal vortex mechanism, these vortical patterns are longitudinal waves that forms as vortical spiral arms are primarily caused by a countering torque-induced precession acting on the stars that are counter revolving on each other in their barycenter of mass in a binary star system. The images of SS443 and Cat's Eye nebula below show a nested set of vortical spiral arms formed on different viscous matter layers, on higher altitudes where the cascading vortical spiral arms begin to form. Graphic on right illustrates the asymmetrical cascading vortical spirals arms (in gray) on various viscous matter layers.

The image on top right shows a false-color picture of Cat's Eye Nebula, in procession it reveals the enormous but extremely faint halo of greenish gaseous material, over three light-years across, which surrounds the planetary nebula. Excerpt from NASA - Astronomy picture of the day. The outer rings encompassing the Cat's Eye nebula in the image of far right, infers a huge invisible torus shape spheroid of viscous matter is encompassing this binary star system. This shows that the actual size of the Cat's Eye Nebula is within a much larger system than it could be optically observed. Snapshot image of raindrop splashing water on impact is for illustration only. This is an evidence that infers there is a huge suspended spheroid of viscous matter encasing the nebula. Based on Universal Vortical Singularity, the rings suggest this is a top view on a polar region of the spheroid, these rings are the layers of torus shape plasmatic spheroid of the binary star system. The spokes supposedly are long and thin satellite vortices formed around a huge polar vortex, this also infers that a huge spheroid of plasmatic matter is encompassing the binary star system. With this suspended spheroid of viscous matter established, the vortices formed in its viscous matter can be logically comprehended based on unisonal vortex mechanism.

A raindrop

Torus shape structure

The pair of spiral arms suggest that the center mass of this binary star system is rotating in anti-clockwise direction from this view. It is quite clear in the left image that the spiral arms are vortices and they are nicely formed. The invisible counter part of this visible dwarf star in the center is suspected to be a brown dwarf, the pair rotate and wobbles around each other in a common center. While one of the suspended spheroids is projecting forward in an angular momentum subjected to a cyclonic gravity field effect of the other suspended spheroid, the spheroid would thrust its lighter viscous matter vortically backward in the forward projection of its main mass, forming the very distinct vortical spiral arm as it has displayed. The similar effect on the other suspended spheroid within a common viscous matter in a mirrored manner would form the other vortical spiral arm in opposite direction, hence this opposite phases of vortices in corkscrew pattern are formed in a wobbling manner. This phenomenon is very similar to SS433 that are known to be a binary star system. Take a close look at these large vortices just inside their outer larger rings one can find satellite vortices around the rings; this is the vortical singularity of a unisonal vortex. Conjecturably this vortical force dynamics of satellite vortices in the outer rings could have consolidated plasma matter into comets by vortical compression, as would hailstones could be formed in whirling storm cloud in this similar manner. See a UVS topic on "Unisonal evolution mechanism".

These two stars of a binary star system would experience consistence rumbling earthquake-like oscillation on their surface as a result of strong external torque-induced precession on each other with their epic centers inside the main mass of the stars along the axes of the vortices. The vortical force dynamics of spiral arm caused externally by the torque-induced precession would have pushed up a cone shape volcano on stratified surface that is encasing a suspended spheroid of molten matter, this vortical force dynamics could also have caused volcano eruption on stratified surface of a molten spheroid. See a UVS topics on "Earthquake and volcano eruption" and "The causality of tidal force".

The asymmetric pair of spiral arms is caused by the binary stars revolving around each other, viscous matter of the revolving spheroids in the spin is pulled by an angular momentum therefore vortically dissipates away from the core by the drag. Although these spiral arms can be categorized as vortex by specification, and is a component of a unisonal vortex, they are not unisonal vortices.

See the image of comet Biela at right that has displayed a similar type of spiral arm when it got near the Sun, although a comet is too small relatively to Sun to able to cause a comparable spiral arms on the opposite side of the Sun from the comet, it could trigger sunspots on photosphere of Sun by its torque-induced precession. This spiral arm is formed inside the coma of this comet, the coma that encompasses a comet can be as big as one AU (astronomical unit) across. This image of comet Biela was taken in 1846 with spiral arms extending within its coma.

Based on unisonal vortex mechanism, the rotation of the suspended spheroid would cause its consolidated viscous matter to become an oblate spheroid and the two-axes wobble would elongate it as an ellipsoid, the cyclonic gravity field effect from its parent suspended spheroid where it revolve on will cause a polar vortexes pair to form on the plasmatic spheroid and the interaction would transform it into an elongated torus-shaped spheroid. A hemisphere surface is within the accretion disc (warped on the hemisphere) of the polar vortex. The shell of the plasmatic sphere is a pause layer of plasmatic viscous matter that separates the different layers of plasmatic viscous matter, encompassing the boundary of a lower layer plasmatic viscous matter with a diamagnetic effect repelling the two viscous matter layers, therefore consolidates as a shell encasing the boundary of a plasmatic sphere. This is similar to the pause layers in the gaseous atmospheres of Earth.

Image on right shows the glow of vortexes in ionosphere as polar aurora, this vortexes is supposedly separated by its magnetopause layers, causing them to appear as concentric rings from a top view of this polar vortexes.

Ant Nebula is a bipolar planetary nebula similar to Cat's Eye Nebula that is also believe to be have a binary star system. Unlike the Cat's Eye Nebula that is orientated with a polar region facing Earth, from the perspective of unisonal vortex mechanism, the Ant Nebula is supposedly observed on a side view with its poles facing top and bottom of the image; the plasmatic polar vortex pair is vaguely visible.

The slighted tilted horizontal asymmetrical structure could be vortical spokes and vortical spiral arms formed as a result of the force interactions in nested plasmatic spheroids of this binary star system that pushes out the vortical structures on two opposite sides along the alignment of these stars, and form the two spherical bipolar lobes, two outer large filamentary hour-glass shaped columns and two cone shaped rays. The spherical bipolar lobe could be formed by a magnetic reconnect process through splitting the nested plasmatic sphere that are stretched by the binary stars into a pair of magnetotails. The several nested spherical lobes that have formed within the main spherical lobe should be the harmonic lobes that have further split on inner layers of the stretched plasmatic spheres; the glowing spherical lobes are formed through the interactions of two stars in a binary star system on their common nested plasmatic spheres. Technically, the bipolar gas structure are not on the polar ends of its binary star system; the axis of this two main bipolar spherical lobes is horizontal to the orbiting plane of the two stars that are revolving around each other in a binary star system. See a UVS topic on "Unisonal evolution mechanism" that illustrates how the nested lobes could be formed in a magnetic reconnect process.

The vortical dynamics of Rotten Egg Nebula is very similar to Ant Nebula, the unevenness of the two spherical bipolar lobes suggests that the binary stars are significantly different in mass. Similarly, the axis of the bipolar gas structure is not the polar ends of its binary star system, although its polar vortex is not visible from this image, the bipolar spherical lobes suggest its axis is horizontal to the orbiting plane of the binary stars that revolves around each other.

See an external link from scientificblogging that illustrates in an animation that show how gas lobe is formed in magnetotail.