Many nebulae are given the names of insects and other animals! Check a couple of these out here:
Wings of a Butterfly Nebula : M2-9 : A Planetary Nebula
external image
Description & Source: antwrp.gsfc.nasa.gov...
"M2-9, a butterfly planetary nebula 2100 light-years away shown in representative colors, has wings that tell a strange but incomplete tale. In the
center, two stars orbit inside a gaseous disk 10 times the orbit of Pluto. The expelled envelope of the dying star breaks out from the disk creating
the bipolar appearance. Much remains unknown about the physical processes that cause planetary nebulae."
Description: hubblesite.org...
"M2-9 is a striking example of a "butterfly" or a bipolar planetary nebula. Another more revealing name might be the "Twin Jet Nebula." If the
nebula is sliced across the star, each side of it appears much like a pair of exhausts from jet engines. Indeed, because of the nebula's shape and
the measured velocity of the gas, in excess of 200 miles per second, astronomers believe that the description as a super-super-sonic jet exhaust is
quite apt. Ground-based studies have shown that the nebula's size increases with time, suggesting that the stellar outburst that formed the lobes
occurred just 1,200 years ago."
A Bright Bug Nebula : NGC 6302 : A Planetary Nebula
external image
Description & Source: antwrp.gsfc.nasa.gov...
"With an estimated surface temperature of about 250,000 degrees C, the central star of this particular planetary nebula is exceptionally hot though
-- shining brightly in ultraviolet light but hidden from direct view by a dense torus of dust. Above is a dramatically detailed close-up of the dying
star's nebula recorded by the Hubble Space Telescope. Cutting across a bright cavity of ionized gas, the dust torus surrounding the central star is
in the upper left corner of this view, nearly edge-on to the line-of-sight. Surprisingly, minerals including water ice, along with complex hydrocarbon
molecules have been detected in this hot star's dusty cosmic shroud. NGC 6302 lies about 4,000 light-years away in the arachnologically correct
constellation Scorpius.
More on this nebula: www.spaceref.com...
A Look at Space: Part 3: Nebulae, page 2
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The Above Network, LLC.
This content community relies on
user-generated content from our member contributors.
The opinions of our members are not those of site ownership
who maintains strict editorial agnosticism and simply provides
a collaborative venue for free expression.
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