About: primary mirror

Premodifier: primary
Head noun: mirror

Same concepts
http://dbpedia.org/resource/Primary_mirror

Broader concepts

label	provenance	confidence
part of the telescope	isap:492866481	0.766221
element	isap:442172356	0.649770
instrument	isap:21047090	0.562583
secondary mirror	isap:391602230	0.510923
mirror	isap:391602309	0.413386
optics	isap:397288354	0.333531

Narrower concepts

label	provenance	confidence