Question

name the following

1) occultation -

2) zero shadow -

3) penumbra-​

Answer 1

Answer:

1)Occultation - An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer. The term is often used in astronomy, but can also refer to any situation in which an object in the foreground blocks from view (occults) an object in the background.

2)Zero shadow - A zero shadow day is a day on which the Sun does not cast a shadow of an object at noon, when the sun will be exactly at zenith. Zero shadow day happens twice in a year for the places between +23.5 and -23.5 degrees of latitude. The dates will be different for different places on Earth.

3) penumbra - a space of partial illumination (as in an eclipse) between the perfect shadow on all sides and the full light. b : a shaded region surrounding the dark central portion of a sunspot.