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Charting Troubled Galactic Waters

BBC Sky at Night Magazine

November 2017

The origins of the never-seen stars on the outskirts of our Galaxy are causing problems for galactic researchers.

- Chris Lintott

The edge of the galactic disc is a complicated place, with the Milky Way’s own stars mixed with the remnants of myriad tiny satellites, ripped apart and consumed by our Galaxy’s gravity. A new paper by an international team uses data from the Sloan Digital Sky Survey to take a look at what might be just such a remnant, a structure known as Triangulum-Andromeda after the part of the sky in which it’s located.

यह कहानी BBC Sky at Night Magazine के November 2017 संस्करण से ली गई है।

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