Astronomical Phenomena and Observations

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  1. Supernova is when a star explodes.
  2. Lunar eclipse does not occur every month because the Moon is not always in the same plane as the Earth.
  3. Lunar eclipse occurs only on a full moon day.
  4. Solar eclipse occurs only on a new moon day.
  5. Solar eclipse occurs when the Moon comes between the Sun and Earth.
  6. Lunar eclipse occurs when Earth comes between the Sun and Moon.
  7. The comet, named after Edmund Halley, reappears after a time interval of every 76 years.
  8. Twinkling of heavenly bodies appears to be because of the refraction of light.
  9. The light curve of variable stars gives the idea of their temperature.
  10. “Super Nova” is called a dying star.
  11. Craters were mainly formed due to distance and space collisions.
  12. The sky appears blue because the blue color of sunlight is scattered.
  13. When the Moon passes between the Sun and the Earth, it causes a Solar Eclipse.
  14. The shape of our Milky Way galaxy is Spiral.
  15. Our Galaxy consists of 85 Stars.
  16. Southern Cross is a constellation visible in the southern sky to the naked eye.
  17. The Milky Way Galaxy has around 200 billion stars, spans ~100,000 light-years, and is a barred spiral galaxy.