For ten points, name this astronomical system located less than one degree from the celestial axis from the northern hemisphere.
Consisting of a binary star and a Cepheid variable, it appears as a second-magnitude star from Earth. It is collinear with Duhae and Merak, part of a different constellation. For ten points, name this astronomical system located less than one degree from the celestial axis from the northern hemisphere.
Consisting of a binary star and a Cepheid variable, it appears as a second-magnitude star from Earth.
{Polaris} or {Alpha Ursae Minoris} (prompt on “Pole star”)  RELATED BONUS: The position of any star on the celestial sphere can be determined using these two coordinates on the celestial sphere, corresponding to latitude and longitude.