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.
