On this evening there was to be an occultation of a star at the moon's dark limb.
The disappearance of a star by the interposition of the moon is called an "occultation."
The phenomenon illustrated is called the "occultation" of the planet.
I was, in particular, struck with the effect of the occultation of Principle on motives.
An occultation of Mercury by Venus was observed with a telescope on May 17, 1737.
Gil Blas himself goes through a long period of occultation, and the whole rather drags.
By occultation is meant, as is well known, the eclipse of the body through passing into the shadow of its parent planet.
I was disappointed in my hope of obtaining an observation of an occultation, which took place about midnight.
The night was mild, with a very clear sky; and I obtained a very excellent observation of an occultation of Tau.
Frequent observations of stars passing behind the moon in occultation have satisfied astronomers on this point.