Intellectual Olympiad in Astrophysics and Space Technologies - 2026 ongoing

Subject: Astrophysics and Space Technologies
Level: VI
Category: student
Quiz questions: in English
Example question: A telescope measures a star’s flux at Earth as F and its distance as d. Which expression gives the star’s luminosity, assuming isotropic emission? L = 4πd²F, L = 4πF/d², L = Fd²/4π, L = F/d