(Guidance Programme) Combined Higher Secondary Level [CHSL] (10+2) Examination - Geography

Geography

SOLAR SYSTEM

Important Facts

Biggest planet : Jupiter
Smallest plant : Mercury
Satellite of Earth : Moon
Nearest planet from Sun : Mercury
Farthest planet from Sun : Neptune
Nearest planet to Earth : Venus
Brightest planet : Venus
Brightest star : Dog Star
Planet having maximum number of satellite : Jupiter (63)
Coldest planet : Neptune
Red planet (seen at night) : Mars
Heaviest planet : Jupiter
Biggest satellite of solar : Ganymede system
Smallest satellite of solar : Demos system
Blue planet : Earth
Red planet : Mars
Morning star : Venus
Evening star : Venus
Sister of Earth : Venus
9th planet : Karla

Sun

  • Distance from Earth: 149.6 million km (Approximately).
  • Critical value of absolute visual magnitude 4.83
  • Diameter: 13,92,000 km
  • Temperature of Code: 20-15 million Celsius Apparent surface temperature: 5778°C (6000°C approximately)
  • Rotational period: 25 days, 3 hrs., 21 minutes, 136 seconds (in reference of equator) 33 days (in reference to pole)
  • Chemical composition: Hydrogen-69.5%, Helium-28%. Carbon, Nitrogen and Oxygen-2%, Magnesium, Sulphur, Silicon and Iron 0.5%
  • Age: 5 billion years (approximately)
  • Possible life of normal star 10 billion years (approximately)
  • Equatorial radius: 6,95,500 km (approximately)

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