General Knowledge(GK) Practice on Solar System

Geographical General Knowledge(GK)

SOLAR SYSTEM: SOME IMPORTANT FACTS:

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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