Astronomical Engines, Geeky Astronomy

Rooting Out New Celestial Objects

The Zeiss blink comparator at the Lowell observatory

Greetings, everyone.

Have you ever wondered how astronomers find new asteroids? Or spot new comets? Or even how they can spot a new supernova? Even looking through a big telescope, with all the billions of tiny little light specks visible, how in the world can you tell if something has moved or changed brightness?

Continue reading Rooting Out New Celestial Objects