Assertion: nebula's distance | /r/HasProperty | measured at 9,500±1000 light-years
Facets:
value: after determining an abnormal reddening correction
type: TEMPORAL
Source sentences:
text: After determining an abnormal reddening correction to the extinction, the distance to both Trumpler 14 and Trumpler 16 has been measured at 9,500±1000 light-years (2,900±300 parsecs).