The astronomer opens the image of the “comet ball” in the constellation A posteriori. It was shaped like a giant extending its hand to grab a galaxy.
Astronomers release stunning images of space It's an image of a nebula that looks like a giant creature extending a transparent hand to grab a spiral galaxy. It is considered a phenomenon in the universe that we rarely see.
The image was taken by the Dark Energy Camera of the Victor M. Blanco Telescope at Cerro Tolo Interamerican Observatory in Chile. The object in the image is the “comet ball” in the Puppis constellation, which is about 1,300 light-years away from Earth.
A cometary corpuscle is a type of dark nebula. It is characterized by dense gas and dust and is surrounded by hot and energetic materials. Comet globules are characterized by their long, comet-like tails. But that's the only thing that resembles a comet. Astronomers still do not know how cometary spherules are formed.
The comet sphere in this image, known as CG 4, is one of many comet globules found in the Milky Way. It looks like a swirling cloud approaching spiral galaxy ESO 257-19 (PGC 21338), but the galaxy is more than 100 million light-years away from the comet's ball.
The head of CG 4 is a hand-like area. Most items are dust. It is 1.5 light-years in diameter and has a long tail spanning 8 light-years.
Astronomers first discovered the comet sphere by chance in 1976 while looking at images taken by the British Schmidt Telescope in Australia. These phenomena are difficult to detect because the surrounding area is often very dark. The globule tails are often obscured by stardust.
But the Dark Energy Camera has a special filter that can detect the faint red light emitted by ionized hydrogen. This is visible at the outer edge and tip of CG 4. Hydrogen produces this distinctive red glow after being exposed to radiation from nearby stars.
Although stellar radiation makes cometary globules visible, this radiation also destroys the head of the ball over time. However, the ball contains enough gas and dust to help form many stars the size of our Sun.
Cometary globules can be found throughout our galaxy. But most of it is in the Gum Nebula, a glowing cloud of gas thought to be the remnants of a slow-expanding star explosion about a million years ago. The Gum Nebula is believed to contain 31 comet balls other than CG 4
Astronomers have two hypotheses about the formation of the sphere. The first is that the sphere was once a spherical nebula, such as the Ring Nebula. Which were disturbed by supernovas over time
The second idea is that it may be the result of winds and radiation emitted by nearby hot massive stars. Astronomers believe that stars may be the real reason for their formation. This is because all the cometary globules in the Gum Nebula have tails pointing away from the center of the nebula. In the center of the nebula are the remains of supernovas and pulsars, or rapidly rotating neutron stars, which form when a large star collapses and explodes.
Compiled from CNN
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