A spectroheliograph is an advanced tool that captures images of the Sun's atmosphere at different wavelengths of light. This instrument is often used to study sunspots, solar flares, and other phenomena occurring on the Sun's surface. While there are no direct synonyms for spectroheliograph, there are other instruments used in solar observation that serve similar purposes. For example, a solar telescope can capture images of the Sun's surface, while a coronagraph captures images of the Sun's corona. These instruments work together to help scientists better understand the behavior of our nearest star and its impact on our planet.