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'New Arm' of Milky Way links to Perseus arm ??

Widdekind
in Astronomy and Cosmology

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The new evidence that Dame and Thaddeus have accumulated shows the existence of a new arm on the other side of the Milky Way, but further from the centre than we are. The new arm is 18 kpc long and so stretches some 50 degrees across the sky.

 

COMMENT: The authors link the arm around to the Scutum-Centaurus arm, but I wonder whether it links around, instead, to the Perseus arm ??

 

newgalacticarmperseus.jpg

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