Last updated on November 26th, 2017
Culture and myth about the Sun
#1. Many ancient cultures worshiped the sun as a deity; from the Aboriginal Australians to the Greeks, Native Americans and even the Egyptians.
#2. A scientist and philosopher from Turkey called Anaxagoras was the first to suggest that the sun is a star, around 450 BC.
#3. Our modern day calendar is based on the earth’s movement around the sun.
Facts about its age
#4. It is 4.5 billion years old.
#5. It is a relatively young star, part of a generation known as Population I.
#6. It is about halfway through its lifetime.
Facts about its size
#7. You can fit 1.3 million earths into it.
#8. It is the largest object in the solar system.
#9. Its mass is 333,000 times that of the earth.
#10. It occupies about 99.86 percent of the total mass of the solar system.
Facts about the distance of Sun from Earth
11. It is closer to earth than all other stars.
#12. It is 391 times as far away from earth as the moon.
#13. Its distance from the earth changes at different points during the year.
#14. It is 30,000 light years away from the center of The Milky Way.
#15. Light from the sun takes eight minutes to reach the earth.
Facts about Solar System
#16. The sun’s gravity anchors earth and all the other planets together in a small space called the solar system.
#17. The sun is at the center of the solar system and all planets orbit around it.
#18. If the sun weren’t there, the earth would travel in a straight line.
#19. Its gravity is 28 times stronger than earth’s gravity.
#20. The bubble that surrounds the sun and solar system is called the heliosphere.
#21. Helioseismology is the study of the interior of the sun.
#22. The sun is studied using many satellites, the main one being the SOHO (Solar and Heliospheric Observatory)
#23. One million earths would make up 0.00033% of all the stars in the Milky Way.
Facts about Sun’s energy
#24. There are electric currents inside of it that generate a magnetic field which spreads throughout the solar system.
#25. A geomagnetic storm is a worldwide disturbance of the earth’s magnetic field as a result of solar activity.
#26. The sun produces energy that supports all life on earth through a process known as photosynthesis.
#27. Its energy is produced from the fusion of hydrogen into helium.
#28. Its temperature is approximately 5700 degrees Celsius.
#29. Nuclear reactions occur within the core of the sun, due to its temperature and pressure.
#30. It emits three different kinds of energy; infrared radiation, visible light, and ultraviolet light.
#31. The ozone layer absorbs most of the sun’s harmful ultraviolet rays which cause sun burns.
#32. The suns UV rays also have antiseptic properties.
#33. The process by which energy moves from the core of the sun to the earth is known as convection.
#34. The heat and energy released from the core of the sun take a million years to reach its surface.
#35. When magnetic energy that has been building up in the sun’s core is suddenly released, it causes a rapid variation in brightness known as a solar flare.
#36. The amount of energy released during a flare is equivalent to a simultaneous explosion of millions of 100-megaton hydrogen bombs.
#37. This explosion is ten million times greater than a volcanic eruption, but less than 1/10th of the total energy produced by the sun per second.
Facts about Sun’s appearance
#38. The sun is actually a mixture of ALL colors, which appears to the eye as white.
#39. It seems to be several different colors during the day due to a phenomenon known as atmospheric scattering.
#40. A green flash is a short lived optical illusion that sometimes occurs at sunrise or sunset when the light from the sun is bent towards the viewer.
#41. It is as bright as 4 trillion 100-watt light bulbs.
#42. It is getting gradually brighter at a rate of 6% per billion years.
#43. Partial solar eclipses are dangerous to the naked eye because our pupils are not accustomed to that level of contrast in light.
#44. The sun is the closest thing to a perfect sphere that has been observed in nature.
#45. Some parts of the sun are cooler than others and thus appear to be darker. They are called sunspots.
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