Astrophysics (index)about


(one celestial body hiding another from an observer)

An occultation occurs when one celestial body hides another, i.e., it enters an observer's line of sight and is large enough that the further body is not visible.

In contrast, a transit is one body hiding part of another by passing in front of it, and an eclipse is one body throwing a shadow on another, e.g., two planets specifically in line with their star.

Atmospheres of both extra-solar planets and solar system bodies are done by occultation, by studying the spectra absorbed by the body's atmosphere.

(astronomy,event type,transient type)

Referenced by:
Arecibo Occultation Survey (AO)
celestial event
exoplanet eclipse light curve
occultation observations
secondary eclipse
transit spectroscopy