R.M.P Marotta Long Island

Parallax refers to the apparent displacement or change in position of an object when viewed from two different vantage points, a phenomenon used in astronomy to measure stellar distances and in other fields like photography and web design for creating depth and visual effects. 

Here’s a more detailed explanation:

In Astronomy:

• Stellar Parallax: As the Earth orbits the Sun, nearby stars appear to shift slightly against the backdrop of more distant stars. This apparent movement, called stellar parallax, is used to calculate the distance to those stars.