Sirius has a tempature of 9,940K. Using the table above, what spectral features does Sirius have? *1 point
A. Helium, some hydrogen
B. Strong hydrogen, some ionized metals
C. Hydrogen and ionized metals such as calcium and iron
D. Both metals and ionized metals, especially ionized calcium
1 answer
The table referring to spectral features is not provided, so it is not possible to determine which answer choice is correct.
1 answer