Cognition Obscura

Three Pound Brain

The Amazing Complicating Grain

On July 4th, 1054, Chinese astronomers noticed the appearance of a ‘guest star’ in the proximity of Zeta Tauri lasting for nearly two years before becoming too faint to be detected by the naked eye. The Chaco Canyon Anasazi also witnessed the event, leaving behind this famous petroglyph:

1054-supernova-petrograph-1

Centuries would pass before John Bevis would rediscover it in 1731, as would Charles Messier in 1758, who initially confused it with Halley’s Comet, and decided to begin cataloguing ‘cloudy’ celestial objects–or ‘nebulae’–to help astronomers avoid his mistake. In 1844, William Parsons, the Earl of Rosse, made the following drawing of the guest star become comet become cloudy celestial object:

m1rosse

It was on the basis of this diagram that he gave what has since become the most studied extra-solar object in astronomical history its contemporary name: the ‘Crab Nebula.’ When he revisited the object with his 72-inch reflector…

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