1700 km/s. A star is ejected from the center of the Milky Way[Delwedd o’r gofod heddiw]| sorae Portal from site to space

[SAPOD]Presenting space images today. We present typical images submitted by sorae in the past, attractive images released by space agencies around the world, and images sent by space astronomy fans and experts. (A link to the original article is at the end of the article)

(reference element: sorae)


  • Image Credit: James Josephides (Swinburne Astronomy Productions)
  • sorae – Star escaping the Milky Way at 1700 km/s.being kicked away by a black hole

This is the star “S5-HVS1” that flew out of the galactic center at high speed, which sorae presented in the article on November 15, 2019.imaginationin.

S5-HVS1 appears to be moving at a tremendous speed of 1700 km/s, which is 10 times faster than other stars in the Milky Way galaxy, or 6 million km/h. (Research results from 2019)

S5-HVS1 was about 29,000 light-years away from Earth, relatively close on the scale of the universe, so the research team was able to trace “where it came from.”

As a result of the analysis, it was found that S5-HVS1 could have been ejected from the supermassive black hole “Sagittarius A*” located at the center of the Milky Way around 4.8 million years ago.

A star that moves much faster than other stars like this is called a “supervelocity star”.


[Sagittarius A* (Sgr A*)]>> Commentary
Sagittarius A* is a celestial body in the center of the Milky Way, about 27,000 light-years away from Earth, and a supermassive black hole with a mass about 4 million times that of the Sun. On May 12, 2022, the international research group “Event Horizon Telescope” announced that it had succeeded in shooting for the first time.

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