Just before setting, the sun may appear to be elliptical. This happens due to:

Refraction of light rays through the atmosphere may cause different magnifications in the mutually perpendicular directions.

Related Questions & Answers
What Happens When The Volume Of A Fixed Mass Of Gas Is Doubled	How Many Monomers Are Involved In Addition Polymers
Crescograph And Auxanometer Are	The Law Of Octaves Was Applicable Only Upto Element Fill In The Blank
How Does Colour Perception Takes Place In Man	What Are The Different Techniques Used For Measurment
Organism Benefit If It Reproduces Through Spores Explain How	What Are Outside Raw Material Used By An Organism
What Are The Two Different Energies A Free Falling Body Will Have	What Is The Radius Of Jupiter

Related Questions & Answers

How Many Monomers Are Involved In Addition Polymers

Crescograph And Auxanometer Are

How Does Colour Perception Takes Place In Man

What Are The Different Techniques Used For Measurment

Organism Benefit If It Reproduces Through Spores Explain How

What Are Outside Raw Material Used By An Organism

What Is The Radius Of Jupiter