solar corona

noun 0.584

spectrograph

noun 0.582

solar telescope

noun 0.582

chronograph

noun 0.569

coronal

noun 0.565

shadowgraph

noun 0.557

coronary

noun 0.549

coronet

noun 0.541

magnetograph

noun 0.535

cosmography

noun 0.531

gravitational lens

noun 0.530

solar eclipse

noun 0.524

camera obscura

noun 0.523

tomograph

noun 0.520

cosmographer

noun 0.518

echocardiograph

noun 0.517

astrolabe

noun 0.516

spectroscope

noun 0.516

interferometer

noun 0.514

photogram

noun 0.513

interferogram

noun 0.511

holograph

noun 0.510

shadowgraphy

noun 0.510

annular eclipse

noun 0.509

radiograph

noun 0.507

telescope

noun 0.505

occulter

noun 0.503