Question

the dimmer star in a two - star system passes in front of the brighter star. which phenomenon does this describe?
○ nebular cluster
○ globular cluster
○ wobbling binary
○ eclipsing binary

Explanation:

A nebular cluster and globular cluster are groups of many stars, not a two-star system event. A wobbling binary refers to stars orbiting a center of mass causing apparent wobble, not one passing in front of the other. An eclipsing binary is a two-star system where one star (dimmer) passes in front of the brighter one, causing a dimming of the observed light.

Answer:

D. eclipsing binary