1. a telescope or instrument designed to observe the sun’s corona by blocking out the bright solar disk
Usage: astronomy

Examples

• The coronagraph revealed spectacular solar flares extending from the sun’s corona.
• Scientists used a space-based coronagraph to study coronal mass ejections.
• The observatory’s new coronagraph can detect solar wind patterns more clearly.
• During the eclipse, the coronagraph captured detailed images of the corona’s structure.
• Researchers analyzed coronagraph data to predict space weather events.
• The satellite’s coronagraph instrument operates continuously to monitor solar activity.