New Delhi, Dec. 5 -- Supermoons occur several times each year in groups, when the Moon reaches an ideal point in its elliptical path, and the one on Thursday night marked the final installment of three consecutive supermoons in 2025.

Also known as "Cold Moon", the term comes from traditional Northern Hemisphere folklore referring to December's long, frigid nights.

"When you have a supermoon, that effect is just slightly more striking," AP quoted stronomer William Alston with the University of Hertfordshire as saying.

A supermoon happens when a full Moon aligns closely with perigee, the point in the Moon's elliptical orbit where it is nearest to Earth. At this time, the Moon sits at about 3,57,000 km away, around 10 to 14 per cent neare...