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WE WOULD LIKE TO
INTRODUCE THE
STUDENTS ABOUT
OUR PROJECT WHICH
DEALS WITH FAMILY
OF STARS & THEIR
COLOURS.
SOLAR SYSTEM
FAMILY OF STARS.
• THE BRIGHTEST STAR:
»SIRIUS some times called the
DOG STAR.
• THE NEAREST STAR: PROXIMA
CENTAURI which is 4.3 light years
away.
• COLOURS OF THE STARS
•Red, brilliant white or
bluish.
Our Sun is a YELLOW
STAR.
• MILKY WAY:
• solar system is a only a
tiny part of
a GALAXY called MILKY
WAY.
It consists of more than 110
billion stars.
• GALAXY: The collection of
billions of stars is known as
galaxy.
REASON FOR DIFFERENT
COLOURS:
• Stars shine with different colours because
some are hotter than others.Sun’s surface is
about 6000°c. Red stars are cooler & bluewhite are hotter at about 10,000ºc or more.
BIRTH OF STARS:
• 15 billions years ago there was a cosmic mass . It
was made up of hot & dense matter. A great
explosion shattered the cosmic mass into
countlessly pieces.This explosion is known as ‘BIG
BANG’.
• There are about 5780 stars that can be seen by eye
without a TELESCOPE.About 2500 are visible
from one palace on the earth at any one time.
A LIGHT YEAR
• LIGHT YEAR is the
distance, light travels in
one year at a speed of
186,282 miles
(299,792kms) per second.
GREAT ASTRONOMERS
BIBLIOGRAPHY
• http://images.google.com/images?q=star&svnum=
10&hl=en&lr=&ie=UTF-8&start=60&sa=N
• http://images.google.com/images?q=star&svnum=
10&hl=en&lr=&ie=UTF-8&start=20&sa=N
• Oxford Children’s Encyclopedia
• The World Book Encyclopedia
• Social science & General Science text
books.http://www.ffiec.gov/hmda/images/star.gif