a European research group including the University of Gottingen has found the remaining parts of a nova in a galactic globular cluster. A nova is a blast of hydrogen on the star surface which makes it a lot brighter. The remaining have framed a glowing nebula. The remnant is located close to the focal point of the globular cluster Messier 22 and has recently been watched utilizing modern equipment. The outcomes will be distributed in the diary Astronomy and Astrophysics.
The brightness and position of the remains coordinate an entry from 48 BC in an ancient collection of perceptions by Chinese space experts," says first author Fabian Göttgens of the Institute for Astrophysics at the University of Göttingen. This is investigate completed for his Ph.D.
in the Stellar Astrophysics group lead by Professor Dreizler. "They observed the first nova in the same spot." This implies current estimations confirm one of the oldest observations of an event outside the solar system
Cluster of globular is huge, round cluster of a few a huge number of old stars that orbit together around their home galaxy. There is 150 known globular cluster circling our galaxy, the Milky Way. Messier 22 is one of these star clusters, it lies in the constellation Sagittarius toward the focal 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 interest of the Institute for Astrophysics, which was subsidized by the BMBF. It doesn't just deliver pictures, it also simultaneously divide starlight by shading, estimating the brightness of stars as a component of shading. This makes it especially reasonable for discovering nebulae that frequently just shine in a specific color - normally red.

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