Table 1 shows some data for the star Deneb: - Surface temperature: $8500\text{ K}$ - Absolute magnitude: $-8.38$ - Mass: $3.8 \times 10^{31}\text{ kg}$ The apparent magnitude of Deneb is $1.25$.
State the spectral class of Deneb.
Calculate, in $\text{pc}$, the distance from Deneb to the Earth.
18 exam-style questions on AQA A Level Physics Classification of stars (A-level only), covering Classification by luminosity (A-level only), Absolute magnitude, *M* (A-level only), Classification by temperature, black-body radiation (A-level only), Principles of the use of stellar spectral classes (A-level only), The Hertzsprung–Russell (HR) diagram (A-level only), and Supernovae, neutron stars and black holes (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.