Term: declination (dec)
Declination is like latitude. It reports how
far a star is from the celestial equator. The north celestial pole is
as far as possible from the celestial equator; it has a declination
of 90°. Further away from the pole means smaller declination--no matter
which way you go.
The bulls-eye pattern displays the decrease in dec as you move away from the pole.
The SC002 maps out to dec=30°.
The red circles
below connect points that all have the same declination. (Of course,
the red circles are examples of diurnal circles.)