About the Makar Sankranti:

• It marks the Sun changing directions and shifting its trajectory towards the north, therefore, entering the Makara or Capricorn zodiac sign.
• The day is a marker for a change of season – warmer months are close and we are moving away from winter, which is seen as a period of inactivity in many ways.
• It is said that the northward journey of the sun (Uttarayan) begins on this day.
• Unlike most festivals that follow the lunar cycle, Makar Sankranti follows the solar cycle and thus, is celebrated almost on the same day every year.
• Astronomically, the Earth revolves around the Sun in an elliptical orbit that requires about 365 1/4 days to complete, as it continues to rotate on its own axis.
• The earth’s spin axis is tilted with respect to its orbital plane. This, along with its distance from the Sun, determines the change in seasons for life on Earth.
• For the Northern Hemisphere, the axis points most toward the sun in June (specifically around June 21), and away from the sun around December 21.
• This corresponds to the Winter and Summer Solstice (solstice is Latin for “the sun stands”). For the Southern Hemisphere, this is reversed.”
• It is also called as –
  • Paush Parbon in Bengal
  • Pongal in Tamil Nadu,
  • Uttarayan in Gujarat,
  • Bhogali Bihu in Assam,
  • Lohri in Punjab and Jammu,
  • Makar Sankramana in Karnataka,
  • Saen-kraat in Kashmir.
  • Khichdi Parwa in parts of Bihar, Jharkhand and Uttar Pradesh.