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The little "strange" galaxy is found in our space yard



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David Freeman

Astronomers using the Hubble Space Telescope have made an unexpected discovery: a group of stars considered part of our Milky Way galaxy really belongs to an unknown galaxy , located at 30 million light-years in an unusually isolated area of ​​the cosmos.

The international team is studying a group of stars known as NGC 6752, which is 1

3,000 light-years away from the periphery of the Milky Way. But after analyzing the brightness and the temperatures of the stars, scientists realized they were looking at objects approximately 2300 times farther than they originally thought.

"It was a really accidental discovery," Luigi Rallye Bedin, astronomer Astronomical Observatory in Padua, Italy, told NBC News MACH in an email. Bedin is the team leader and lead author of a report describing the discovery that was published Thursday in the Monthly Notices of the Royal Astronomical Society.

This combined image shows the location of the haphazard dwarf gadget Bainin 1 behind the globe cluster NGC 6752. The lower image depicting the entire cluster is terrestrial observation. The upper right image shows the full field of vision of the Hubble Space Telescope. The upper left part highlights the part containing the galaxy Bedin 1 ESA / Hubble, NASA, Bedin, etc.

The newly discovered galaxy called Bedin 1 in recognition of the unique role of the scientist in her discovery seems small and even at the powerful increase of Hubble. And no wonder it's about 30 times smaller than the Milky Way and a thousand times darker. This is one of the 36 such galaxies known to exist in the so-called Local Group of Galaxies, which includes the Milky Way and the neighboring Andromeda galaxy.

The galaxy is believed to be about 13 billion years old, making it "alive"

It is believed that the universe itself is about 13.8 billion years old. "

" It's fun to find something interesting in your yard that never knew it existed, "Jay Passauhoff, an Williams astronomer The College in Williamstown, Mass., Who is not involved in the new study, told NBC News MACH in an e-mail. "" The field of vision of the Hubble Space Telescope, perhaps that of a grain of rice held at arm's length, is so small that it is rarer than an additional object to peek at it, but this has become path. "

Such discoveries may not be so rare in the near future, NASA plans to release its a new wide-infrared research telescope or WFIRST in the mid-2020s, and Bedin said in an e-mail that the space telescope still developing, whose field of observation would be 100 times larger than Hubble [19659015] Want more stories about astronomy

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