solar system formed...... billion years ago
4.5(earth formed)
13.7(universe formed)
5 (when supernova was formed)

earth, which option is wrong

• life started 3.5-4 BY ago(bacteria first appeared)
• oblate spheroid
• denstiestt planet of solar system
• N most in atmosphere(78%)
• O most in body(47%)
• W to E rotation
• equator passes through brazil, kenya
• equinox(spring 21 march, autumn 23 sept)(day and night equal)(alternative in N and S hemisphere)
• solstice(summer 21 june=longest day(N hemi), winter 22 dec=longest night(N hemisphere),alternative in N and S hemisphere)
• litho/asento/mesosphere are parts of mantle(82% of earth body)
• tropho/starto/meso/ionosphere(increase in altitude respectively) layers of atmosphere
• moon is slowing down earth rotation
• speed highest when close to sun
• 00 : 00 to23:59 is military time
• equator,longitude,meridian,declination,hemisphere are map classification
• height of most satelites 3600 km
• diameter(equatorial diame is 27 mile greater than polar diame)
• upper atmosphere limit is 120mile/192km
• average temperature of earth is 14 C
• dinosaurs became extinct about 65 MY ago
• escape velocity of an object 11.1 km/sec
• escape velocity for earth from sun 7 miles /sec
• rotation speeed of earth is 1700km/hour
• revolution speed of earth is 18.5miles /sec or 29.79 km/sec
• life can exist between 0c to 50C

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sun, which option is wrong

• 4.6 BY ago, formed (age of sun)
• H 90%, He 8%, heavy elements 2%
• temperature: surface 6000C (10000 F) , inside 15 Million C(27 million F)
• plasma form of matter, it is fluid
• 99.86% of solar system mass
• Classified as a G2 dwarf due to its size, heat, and chemical makeup, the sun is a medium-sized star.
• the sun will continue to burn hydrogen collected in its core for another five billion years or so, and then helium will become its primary fuel.
• Every 11 years, solar activity surges(sunspot rotation cycle)
• The sun rotates on its axis once every 25-38 Earth days or 609.12 hours
• the sun’s gravity is 28 times that of Earth
• All planets orbit the sun in the same direction, counterclockwise, and on roughly the same plane, known as the ecliptic
• In ancient Egypt, the sun god Ra was the dominant figure among the high gods
• rising sun refers to Japan. the Greeks called it Helios and the Romans called it Sol.
• sun at this time is at the middle of its age
• The Sun is 109 times wider than Earth, and is 333,000 times heavier.
• The Sun is tilted
• If you lived on the Sun, and you built a spacecraft, it would have to go over 618.2 kilometers per second to escape the Sun’s gravitational pull.
• You could fit 1.3 million Earths inside the Sun. Or you could flatten out 11,990 Earths to cover the surface of the Sun
• at some point, in about 5 billion years from now, the Sun will enter the red giant phase , where it swells up to consume the inner planets – including Earth (probably). It will slough off its outer layers, and then shrink back down to a relatively tiny white dwarf.
• The corona is the outer part of the Sun's atmosphere. It is in this region that prominences appears.
• The Sun does revolve around the Milky Way on an almost circular orbit with a speed of about 220km/s. The Sun completes one revolution in about 230 million years.
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sources
Read more about The Sun l Sun Facts and images. by nineplanets.org
Sun
Interesting Facts About the Sun


My Very Educated Mother Just Served Us Nine Pickles
(sequence of planets from 1(M) to 9(P))

Mercury, which is wrong
The orbit of Mercury has the highest eccentricity of all the Solar System planets, and it has the smallest axial tilt.
revolution 88 earth days
no moon
craters are found, like moon
Escape velocity 4.25 km/s[5]
temperature max 700K. min 100 K
fastest revolving
air contains 42% molecular O2
closest to earth
smallest planet
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venus, which is wrong
venus was the Roman goddess of love and beauty
earth twin/sister(size + mass+gravity+body composition)
A younger Venus is believed to have possessed Earth-like oceans
clouds of sulphuric acid
Escape velocity 10.46 km/s
temp, mean 735 K
atmosphere 96%CO2
After the Moon, it is the brightest natural object in the night sky
CO2 in air
no moon
hottest/brightest planet
revolution 225 earth days
longest day in all planets
slowest rotating
often called morning/evening star
only planet with clockwise rotation
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mars. which is wrong
name after roman god of war
red planet(as the iron oxide prevalent on its surface)
Olympus Mons, the highest known mountain within the Solar System
revolution 687 days
Escape velocity 5.027 km/s
max temp 293 K, min 186 K
95% CO2 in air
two moons, phobos and deimos
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jupetor, which is wrong
biggest / largest planet
it is two and a half times the mass of all the other planets in our Solar System combined
63 moons
Ganymede moon largest in the solar system
Jovian or outer planets (including: saturn, uranus, neptune)(gas giants)
atmosphere:90% H2
Great Red Spot, a giant storm (in atmosphere)
temperature: mean 165K
Escape velocity 59.5 km/s
4 large moons discovered by Galileo in 1610
the possible ice-covered liquid ocean on the moon Europa.(our future)
heaviest
shortest day
fastest rotating planet
max moons
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saturn, which is wrong
second largest
hindu call it Shani
superb rings(Saturn has nine rings)
revolution 29.64years of earth
62 moons
solar system 2nd largest moon= Titan
atm: 96% H2
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uranus, which is wrong
greenish glow
Sir William Herschel announced its discovery on March 13, 1781
classical planet (total 5 ie Mercury, Venus, Mars, Jupiter, and Saturn, visible with naked eye, so moon and sun are also included )
27 moons
similiar to neptune (both are sometimes called ice giants)
coldest
Escape velocity 21.3 km/s
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neptune, which is wrong
Named for the Roman god of the sea
Neptune was the first planet found by mathematical prediction rather than by empirical observation.
Escape velocity 23.5 km/s
Great Dark Spot comparable to the Great Red Spot on Jupiter
Neptune has a faint and fragmented ring system
blue planet
2 moons
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Kuiper belt
It extends between 30 and 50 AU from the Sun
While the asteroid belt is composed primarily of rock and metal, the Kuiper objects are composed largely of frozen volatiles (termed "ices"), such as methane, ammonia and water.
five dwarf planets—Ceres, Pluto, Haumea, Makemake, and Eris
In Pluto's honour, the four currently accepted dwarf planets beyond Neptune's orbit are called "plutoids"
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:::::source wikipedia and book information