Assertion: andromeda galaxy's halo | /r/HasProperty | centered on the star swarms
Facets:
value: in the constellation of sagittarius
type: LOCATION
Source sentences:
text: Harlow Shapley stated in 1918 that the halo of globular clusters surrounding the Milky Way seemed to be centered on the star swarms in the constellation of Sagittarius, but the dark molecular clouds in the area blocked the view for optical astronomy.