The Central Star of the Crab Nebula Has Now Collapsed

question 11

Short Answer

The central star of the Crab Nebula has now collapsed into a(n)________, whose energykeeps this famous nebula visible even in binoculars.

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Definitions:

Moon Illusion

A visual illusion where the Moon appears larger near the horizon than it does while higher up in the sky.

Size Constancy

A perceptual phenomenon where the perceived size of an object remains constant despite changes in the distance from which it is viewed.

Motion Parallax

A depth cue in visual perception where objects closer to the observer move faster across the visual field than objects further away.

Interposition

A visual cue in which an object partially blocks the view of another, indicating the first object is closer to the viewer.