And it completed yet another round…….
From the childhood we have seen the changing seasons teach us about the great phenomenon of the earth's revolution around the sun while constantly rotating around its own axis giving us day and night. We change our calendar according to the revolution of the earth. Thus we can see how these heavenly bodies affect our day to day lifestyles. This study is Astronomy.
365 days passed by and another year for the earth completed. How interesting it is that different planets on the same solar system have different lengths of year. Curiosity is on what is it dependent upon? Correctly guessed it’s the distance of the planet from the sun. Lesser the distance smaller is the year. So with the same logic, Mercury has the smallest year for 88 days while that of the dwarf planet Pluto is 248 earth years.
93 million miles away from the sun, Earth takes 365.25 days to circle all the way around the sun. That’s why a year is 365 days long! Hence the year is considered to be 365 days long adjusting the remaining 0.25 days in a leap year. (So leap year occurs every 4 years i.e.: 0.25*4).
Another fact related to the New Year is that as the clock strikes 12, Sirius- the brightest star celebrates its birthday by reaching the highest point in the sky. This is known as midnight culmination of Sirius.
Interestingly, just like we have an academic year and financial year, we have different types of calendars (precisely years) in our astronomy. Example, there are two types of calendars:
Solar calendar depends only on the earth’s revolution around the sun while as the name suggests, lunar calendar changes according to moon's revolution which is in spiral orbit around the earth.
Isn’t it fun to see the stars in the sky while relaxing? So why just observe when you can learn further? We are here with all new courses with exciting information awaiting your presence. Stay tuned!!!