To identify which layer of the sun they are studying, the astronomers can compare the temperature data against known temperature ranges for each layer of the sun. For instance, they can measure the temperatures observed:
- If they find extremely high temperatures, they could identify the study as concerning the corona, which reaches temperatures of about 1 to 3 million degrees Celsius.
- If the temperatures observed are lower, around 5,500 degrees Celsius, they could conclude they are looking at the photosphere.
- If they find moderate temperatures, anywhere from about 1 to 7 million degrees Celsius, they could identify the radiative zone.
- If the temperatures are the highest observed, exceeding several million degrees, they could confirm they are studying the core, where the temperatures can reach around 15 million degrees Celsius.
By matching the recorded temperatures to these known values, the astronomers can determine which layer they are observing.