Many #asteroids are too small to observe directly, so details such as size and shape are inferred when they pass in front of another object (like a #star). By measuring the exact timing of the star dimming/disappearance and comparing the notes of many geo-separate observers, a surprisingly accurate picture is made.
#astrodon #astronomy #stargazing #telescope #solarsystem #space #astronomersassemble
More info on #occultations: https://occultations.org/occultations/what-is-an-occultation/
#asteroids #star #Astrodon #astronomy #stargazing #telescope #solarsystem #space #astronomersassemble #occultations