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Solar system & constellation(g 4)

Solar system & constellation(g 4)






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    Solar system & constellation(g 4) Solar system & constellation(g 4) Presentation Transcript

    • Solar System & Constellation
    • Overview
      • Solar system refers to the sun (our star) and all objects that travel around its.
      • Components of the solar system divided into planets, satellites, asteroids, and comets.
      • Planets in Solar System are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
      • Planets in Solar System named after figures from Greek and Roman mythology.
    • Nine planets can classified or grouped different ways:
      • By size :
      • Small planet – Mercury, Venus, Earth, Mars and Pluto.
      • Giant planet – Jupiter, Saturn, Uranus and Neptune.
      • By position from Sun :
      • Inner planet – Mercury, Venus, Earth and Mars.
      • Outer planet – Jupiter, Saturn, Uranus, Neptune and
      • Pluto.
      • By composition :
      • Terrestrial or rocky planet – Mercury, Venus, Earth and
      • Mars.
      • Gas planet – Jupiter, Saturn, Uranus and Neptune.
    • Sun
      • A gigantic ball of very hot gases.
      • Converts 6 million tons of hydrogen into helium every second.
    • Sun
      • Diameter : 1.4 million km (870,000 miles), which is 109 Earth diameters
      • Mass : 330,000 times the mass of the Earth
      • Time to rotate (at equator) : 25 Earth days
      • Temperature in central core : 14 million
      • Distance from center of our galaxy : 26,000 light years
      • Age : 4.5 billion years
    • Mercury – at the edge of the Sun
      • A dense, rocky planet with a core made of iron and nickel.
      • The planet closet to the Sun.
      • Size bigger than Pluto, about the size of Earth.
      • Surface is scarred by ancient craters.
      • Temperatures soar to 370 day and night -185.
      • Orbit around the Sun, travels 50km/s(30 mile/s) faster than other planet.
    • Mercury
      • Average distance from the Sun: 58 million km
      • Diameter: 4880 km(3032 miles)
      • Mass: 0.06 times the Earth’s mass
      • Time to orbit the Sun: 88 Earth days
      • Rotation time (a day): 59 Earth days
      • Number of Moons: None
    • Venus – cloud-covered inferno
      • Called Earth’s sister planet.
      • Hottest world in the Solar system.
      • Second planet from the Sun.
      • The size and masses same as the Earth.
      • Temperature on surface 480 (896 )
      • Venus shrouded under a thick blanket of clouds, containing carbon dioxide and sulfuric acid.
    • Venus
      • Average distance from the Sun: 108 million km (67 million miles)
      • Diameter: 12,102 km (7520 miles)
      • Mass: 0.82 times the Earth’s mass
      • Time to orbit the Sun: 225 Earth days
      • Rotation time (a day):243 Earth Days
      • Number of Moon: None
    • Earth – the oasis
      • The only planet that can support human.
      • The only planet has oceans of liquid water, plenty of oxygen in its atmosphere.
      • Third planet from the Sun.
      • Pretty planet with swirling white clouds, blue oceans and mostly brown continents.
      • Earth’s core mostly made up of nickel and iron.
    • Earth
      • Average distance from the Sun: 150 million km (93 million miles)
      • Diameter: 12,756 km (7926 miles)
      • Mass: 6 x 10 24 kilograms
      • Time to orbit the Sun: 365 Earth days
      • Rotation time (a day): 23 hours 56 minutes 4 second
      • Number of Moon: One
    • Moon – our traveling companion
      • Has no atmosphere and no oceans of water.
      • Surface of Moon is pitted by numerous craters produced by series of impact about 4 billion years ago.
      • Surface was strewn with loose rocks, ranging in the size from pebbles to boulders as big as houses.
    • Moon
      • Average distance from the Sun: 384,400 km (238,855 miles)
      • Diameter: 3475 km (2160 miles)
      • Mass: Almost 1/100 th of the mass of the Earth
      • Rotation time (a day): 27 Earth days, 7 hours and 45 minutes, with respect to the stars
    • Mars – the red world
      • The red planet.
      • A small rocky planet.
      • Fourth planet from the Sun.
      • Has inspired numerous science fiction tales as a source of hostile alien beings and underground colonies.
      • Smaller and colder than the Earth.
      • Rock looks red because iron in its surface soil has combined with oxygen to make rust.
      • Has two tiny moon called Phobos and Deimos.
      • Temperatures as low as -140 (-220 )
    • Mars
      • Average distance from the Sun: 228 million km (142 million miles)
      • Diameter: 6794 km (4221 miles )
      • Mass: 0.11 times the Earth’s mass
      • Time to orbit the Sun: 687 Earth days (or 1.88 years)
      • Rotation time (a day): 24 Earth hours and 43 minutes
      • Number of Moon: two
    • Jupiter – king of planet
      • The largest planet in the Solar system.
      • Fifth planet from the Sun.
      • Is a gas planet and does not have a solid surface like the Earth.
      • Atmosphere bristles with lightning and huge storm systems.
      • Top layers of Jupiter form swirling patterns of cloud, with bands of different color.
      • Temperatures change rapidly., from much hotter to much colder than any other places on Earth.
    • Jupiter
      • Average distance from the Sun: 778 million km (483 million miles)
      • Diameter: 142,984 km (88,846 miles)
      • Mass: 317 times the Earth’s mass
      • Time to orbit the Sun: 11.9 Earth yaers
      • Rotation time (a day): 9 Earth hours and 51 minutes
      • Number of Moon: at least 28
    • Saturn – jewel of the Solar System
      • Sixth planet from the Sun.
      • Famous for its dazzling and complicated rings.
      • Saturn’s ring span about 270,000 km(168,000 miles) from edge to edge.
      • The rings are very thin, only a few tens of meters thick.
      • Saturn composed of hydrogen and helium.
      • No solid surface.
      • Has more moon than others planet.
    • Saturn
      • Average distance from the Sun: 1430 million km (889 million miles)
      • Diameter: 120,536 km (74,898 miles)
      • Mass: 95 times the Earth’s mass
      • Time to orbit the Sun: 29.5 Earth years
      • Rotation time (a day): 10 Earth hours and 48 minutes
      • Number of Moon: at least 30
    • Uranus – rolling on its side
      • A giant gas planet.
      • Seventh planet from the Sun.
      • Has cloudy atmosphere made up of hydrogen and helium.
      • Spins on its axis in the opposite direction (known as retrograde) to most of the other planet.
      • The atmosphere has streaking bands and dark spot.
      • Circled by very thin rings which composed of centimeter-sized particles.
    • Uranus
      • Average distance from the Sun: 2877 million km (1788 million miles)
      • Diameter: 51,118 km (31,763 miles)
      • Mass: 14.5 times the Earth’s mass
      • Time to orbit the Sun: 84 Earth years
      • Rotation time (a day): 17 Erath hours and 17 minutes
      • Number of Moon: at least 21
    • Neptune – blue world of the deep
      • The fourth and last giant gas planet.
      • Eighth planet from the Sun.
      • Atmosphere made up of hydrogen.
      • Streaks of white cloud, ranging in width from 50-200km (30-120 miles) cross the atmosphere.
    • Neptune
      • Average distance from the Sun: 4498 million km (2795 million miles)
      • Diameter: 49,528 km (30,775 miles)
      • Mass: 16.7 times the Earth’s mass
      • Time to orbit the Sun: 165 Earth years
      • Rotation time (a day): 16 Earth hours and 5 minutes
      • Number of Moon: at least eight
    • Pluto – baby of the family
      • Smallest planet in Solar System.
      • Is icy and rocky, with frozen surface layers of methane.
      • Smaller than Earth’s Moon.
      • Temperature at the surface is about -220 (-365 )
      • Orbit around the Sun is highly elongated (or elliptical) and more tilted than other planet.
    • Pluto
      • Average distance from the Sun: 5919 million km (3675 million miles)
      • Diameter: 2274 km (1413 miles)
      • Mass: 0.002 times the Earth’s mass
      • Time to orbit the Sun: 249 Earth years
      • Rotation time (a day): 6 Earth days and 9 hours
      • Number of Moon: One
    • Solar System Uranus Venus Earth Mars Jupiter Saturn Neptune Pluto Mercury
    • Circumpolar Constellations
      • The constellations near the north celestial pole are visible all year long
      • Its phase and brightness affect the number of stars you see even on the most cloud-free, haze-free nights.
    • Polaris
      • One special, moderately bright star stays fixed in the sky all the time, day and night, season after season, and year after year.
      • Polaris always defines the points of the compass.
    • Draco
      • One of the largest circumpolar constellations, obscure to casual observers on account of its long, winding shape, is Draco , the dragon.
    • Perseus
      • Perseus is another circumpolar constellation with an elongated, rather complicated shape.
    • Constellations Of Spring
      • There are certain star groups that are Characteristic of the evening sky in spring in the northern hemisphere.
      • The season of spring is 3 month long.
    • Virgo
      • The virgin, is fairly high in the southeastern sky.
      • It has an irregular shape, something like a letter Y with a hooked tail.
    • Cancer And Canis Minor
      • Cancer, the crab, stands high in the southwestern sky.
      • If you stand facing southwest and look up at an elevation about 70 degrees, you’ll see a group of stars that resembles an upside-down Y.
      • Next to cancer is Canis Minor , the little dog, which contains the prominent star Procyon.
    • Gemini
      • Gemini is moderately in the western sky.
      • This constellation has the general shape of a tail, thin, squared-off letter U.
      • At the top of the U are prominent castor and pollux.
    • Auriga
      • Just to right of Gemini is the constellation Auriga.
      • It has the shape of an irregular pentagon.
      • Auriga contains the bright star Capella.
    • Hercules
      • A complex of star, none of them bright, forming a trapezoid with limbs.
      • Representing a man of legendary strength and endurance.
    • Constellations Of Summer
      • Appear in the sky in the middle of July.
      • New star groups have risen at the east, and old ones have set in the west.
    • Sagittarius
      • In the east-southeast sky, to the right and above Capricornus.
      • Outline resembles a teapot.
      • Lies in the direction of the densest part of the Milky Way.
    • Scorpius
      • Sits in the southen sky.
      • Resemblance to the animal or object it represents.
      • The eye of scorpion is the red giant star Antares, which the brightness.
    • Orhiuchus
      • In the southen sky, centered at the celestial equator.
      • Has a meaningless job.
    • Coma Berenices
      • About halfway between the horizon and the zenith in the west-northwest sky, you will see a fuzzy blob.
      • With binoculars, this resolves into a cluster of stars known as Coma Berenices ( the hair of Berenice ).
    • Constellations Of Autumn
      • An evening in the middle of October, a couple of hours of sunset.
      • The sky looked after by new custodians as the night grow longer.
    • Pisces
      • High in the southeast you will see Pisces, the two fish.
      • Legend has it that Pisces were joined or tied together at their long tails ago, and to this day they are flailing about in that unfortunate condition.
    • Pegasus
      • Nearly at the zenith there is a square consisting of four medium- bright stars.
      • This is a body of Pegasus, the winged horse.
    • Andromeda
      • Toward the northeast, Andromeda, representing a princess, rides the horse alongside the Milky Way.
      • The Ethiopian princess who married Perseus.
    • Constellations Of Winter
      • They appear from the latitude of Lake Tahoe, Indianapolis, or Washington, D.C. a few hour after suppertime.
    • Canis Major
      • The southern portion of winter evening sky is dominated by Canis Major, the big dog.
      • Canis Major is easy to spot because of brilliant white star, that appears in the south-southeast
      • This is the brightest star in the whole sky, and its name in fact means “scorching” because it is contained in Canis Major, Sirius is often called the dog star.
    • Orion
      • Somewhat above and to the right of Sirius you will see another winter landmark, Orion, the hunter.
      • Orion contains two bright stars of its own, Betelgeuse, a red giant, and Rigel, a blue-white star.
    • Taurus
      • A few degrees from the zenith in the southern sky on winter evenings, is Taurus, the Bull.
      • This constellation contains the bright star Aldebaran, which represents the eye of the bull.
    • Constellations Constellations Of Spring Circumpolar Constellations Constellations Of Summer Constellation of Winter Constellations of Autumn - Polaris, Ursa Minor, Ursa Major , Cassiopeia, Cepheus, Draco , Perseus -Libra, Virgo, Leo, Cancer And Canis Minor , Gemini, Auriga, Hercules, Corona Borealis , Bootes, Canes Venatici, Corvus, Crater, And Hydra - Capricornus, Sagittarius, Scorpius, The Summer Triangle, Ophiuchus And Serpens, Coma Berenices - Pisces And Aries, Cetus, Pegasus And Andromeda, Aquarius, Piscis Austrinus And Grus -Canis Major And Lepus, Orion, Taurus And The Pleiades, Eridanus