Geographical General Knowledge(GK)
Biggest Planet: Jupiter
Smallest Planet: Mercury
Nearest Planet to Sun: Mercury
Farthest Planet from Sun: Neptune
Nearest Planet to Earth: Venus
Brightest Planet: Venus
Hottest Planet: Venus
Coldest Planet: Neptune
Red Planet: Mars
Biggest Satellite: Ganymede
Smallest Satellite: Deimos
Blue Planet: Earth
Morning Star: Venus
Evening Star: Venus
Planet With a Red Spot: Jupiter
Brightest planet outside Solar System: Sirius(Dogstar)
Closest Star of Solar System: Proxima Centauri
Fastest rotation in Solar System: Jupiter
Slowest rotation in Solar System: Venus
Fastest revolution in the Solar System: Mercury
Slowest revolution in Solar System: Neptune.
SOLAR FAMILY: SOME IMPORTANT FACTS:
Member: MERCURY
Revolution Period: 88 days.
Rotation Period: 58.65 days.
No. of Satellites: 0
Density(Water=1): 4.80
Member: VENUS
Revolution period: 224.7 days
Rotation Period: 58.65 days.
No. of Satellite: 0
Density(Water=1); 4.85
Member: EARTH
Revolution Period: 365 days
Rotation Period: 1.00 days
No. of Satellite: 1
Density(Water=1): 5.52
MEMBER: MARS
Revolution period: 687 days
Rotation Period: 1.03 days
No. of Satellites: 2
Density( Water=1); 3.95
MEMBER: JUPITER:
Revolution Period: 4333 days
Rotation Period: 0.41 days
No. of Sattelite: 67
Density( Water=1): 1.33
MEMBER: SATURN:
Revoluation Period: 10759
Rotation Period: 0.43 days
No. of Satellite: 62
Density(Water=1): 0.69
MEMBER: URANUS:
Revoluation Period: 30686
Rotation Period: 0.45
No. of Satellite:: 27
Density(Water=1): 1.36
MEMBER: NEPTUNE:
Revolution Period: 60188 days
Rotation Period: 0.66
No. of Satellites: 14
Density( Water= 1): 1.30
SUN: SOME IMPORTANT FACTS:
Average distance from Earth: 14,95,98,900 km
Diametre: 13,91,980 km
The temperature of the Core: 1,500,000 degrees k
Rotation Speed: 25.38 days( with respect to equator); 33 days(with respect to poles)
Chemical compositions:: Hydrogen: 71%; Helium: 26.5%; other gases: 2.5%
Age: 4.6 billion Years
Total Life: 10 billion years
Time is taken by sunlight to reach earth: 8 min.and 16.6 sec.
Speed of Light (in vaccum):3,00,000 kmps
Read More: First in India and First in World GK
MOON: SOME IMPORTANT FACTS:
Average distance from earth: 3,84,365 km
Diametre : 3,476 km
The ratio of Diametre of the moon to that of the earth: 1:3.7
Rotation speed: 27 days, 7hrs, 43 min &v 11.47 sec.
Revolution Speed:: 27 days, 7 hrs, 43 min & 11.47 sec.
Time taken by moonlight to reach earth: 1.3 sec
Percent of surface visible from earth: 59%
First man to reach moon: Neil Armstrong and Edvin Aldrin on Apollo XI (1969)
EARTH: SOME IMPPORTANT FACTS:
Age: 4,550 million years
Mass: 5.976*10 to the power 24 kg
Volume: 1.083*10 to the power 24 litres
Mean Density : 5.518 kg/lt
Total Surface Area: 510 million sq.km
Land Area: 29.2%of the total surface area.
Water Area: 70.8% of the total surface area
Equatorial Diametre: 12.755 km
Polar Diametre: 12,712km
Escape Velocity: 11.2 km/sec
Highest Land Point: Mount Everest (8848 m)
Lowest Land Point: Dead Sea (396)
Greatest Ocean Depth; Mariana Trench (11,033)
Equatorial Circumference: 40,076 km
Polar Circumference: 40,024 km
Mean Surface Temperature : 14 degree Celcius
Maximum distance from the sun(Aphelion): About 152 million km
Minimum distance from the sun(Perihelion): About 147 million km
Rotation Speed: 23 hrs, 56 min & 45.51 sec
Revolution Speed : 365 days, 5hrs & 45.511 sec
Dates when days & nights areb equal : Mar.21(Vernal Equinox): Sept.23 ( Autumnal Equinox)
Dates of longest days and shortest nights: June 21( Summer Solstice): Dec, 22(Winter Solstice):
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