Astronomers confirmed 2,000-year-old Observation of Chinese Stargazers 48 BC Nova

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Messier 22 2000 years old Nova

Out of the blue, a European research cluster including the University of Göttingen has found the remaining parts of a nova in a galactic globular cluster. A nova is a blast of hydrogen on the outside of a star which makes it a lot more splendid. The remaining parts have framed a gleaming cloud. The leftover is situated close to the center point of the globular cluster Messier 22 and has as of late been watched utilizing current instruments.

“The position and brilliance of the remaining parts coordinate a section from 48 BC in an old accumulation of perceptions by Chinese stargazers,” says first author Fabian Göttgens of the Institute for Astrophysics at the University of Göttingen. “They most likely observed the first nova in a similar spot.” This implies present day estimations affirm one of the most seasoned perceptions of an occasion outside the close planetary system.

Globular clusters are vast, circular clusters of a few a huge number of old stars that circle together around their home galaxy system. There are 150 known globular clusters circling our galaxy system, the Milky Way. Messier 22 is one of these star clusters, it lies in the constellation Sagittarius toward the center point of the Milky Way. It was watched together with two dozen other globular clusters with the instrument MUSE at the Very Large Telescope of the ESO in Chile. The MUSE instrument was created with the cooperation of the Institute for Astrophysics, which was financed by the BMBF. It doesn’t just create pictures, it additionally all the while parts starlight by color, estimating the brilliance of stars as an element of color. This makes it especially appropriate for discovering nebulae that regularly just sparkle in a specific color – typically red.

The newfound survives from the nova structure a red sparkling cloud of hydrogen gas and different gases, which has a width of around multiple times the distance among Earth and Sun. In spite of its size, the cloud is moderately light, with a mass around multiple times that of Earth, on the grounds that the gas was scattered by the blast.


Fabian Göttgens, Peter M. Weilbacher, Martin M. Roth, Stefan Dreizler, Benjamin Giesers, Tim-Oliver Husser, Sebastian Kamann, Jarle Brinchmann, Wolfram Kollatschny, Ana Monreal-Ibero, Kasper B. Schmidt, Martin Wendt, Lutz Wisotzki, Roland Bacon. Discovery of an old nova remnant in the Galactic globular cluster M22Astronomy & Astrophysics, 2019 (accepted); [link]

Most detailed portrait of Cosmic Bat Nebula Taken by VLT

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Cosmic bat

Hidden in one of the darkest corners of the Orion constellation, this Cosmic Bat is spreading its foggy wings through interstellar space two thousand light-years away. It is enlightened by the young stars settled in its core — despite being covered by dark dust storms; their splendid beams still light up the cloud. Too diminish to even think about being recognized by the naked eye, NGC 1788 uncovers its delicate hues to ESO’s Very Large Telescope in this picture — the most point by point to date.

ESO’s Very Large Telescope (VLT) has gotten a look at an ethereal cloud hidden away in the darkest corners of the constellation of Orion (The Hunter) — NGC 1788, nicknamed the Cosmic Bat. This bat-molded reflection cloud doesn’t transmit light — instead it is lit up by a bunch of young stars in its center, just faintly obvious through the dust storms. Logical instruments have made some amazing progress since NGC 1788 was first depicted, and this picture taken by the VLT is the most detailed representation of this cloud at any point taken.



ESO’s VLT Reveals Final Moments of Dying Star

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planetary nebula ESO 577-24

The faint, vaporous sparkle radiating from the planetary nebula ESO 577-24 holds on for just a brief timeframe — around 10,000 years, a flicker of an eye in galactic terms. ESO’s Very Large Telescope caught this shell of sparkling ionized gas — the final gasp of the diminishing star whose stewing remains are unmistakable at the core of this picture.

As the vaporous shell of this planetary nebula extends and develops dimmer, it will gradually vanish from sight. This dazzling planetary nebula was imaged by one of the VLT’s most flexible instruments, FORS2. The instrument caught the splendid, central star, Abell 36, just as the encompassing planetary nebula.

The red and blue segments of the above picture relate to optical discharge at red and blue wavelengths, separately. An object nearer to home is likewise obvious in this picture — a space rock meandering over the field of view has left a swoon track underneath and to one side of the central star. Furthermore, in the far separation behind the nebula a sparkling host of background galaxies can be seen.

Credit: ESO