What we plant in the soil of contemplation we shall reap in the harvest of action.— Meister Eckhart

Spherical Trigonometry — quick quiz

5 real NSEA questions on Spherical Trigonometry. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 2

HARD

Two stars have right ascensions α₁ = 2h and α₂ = 8h, and both have declination δ = +30°. What is the angular separation between them on the celestial sphere?