Sparklee Starz

1
Sparklee Starz
By Tabby, Sarah, Victoria, Emily and Lilly
2
Birth of a star
The birth'' of a star refers to the process by
which it is formed from diffuse clouds of cold
gas that are present in its galaxy. A cloud
collapses to form a number of stars when it is
disturbed so that its gravity overcomes its
motion and pressure.
Death of a star
The death'' of a star occurs when its fusion
fuel, first hydrogen and then heavier nuclei, has
run out. This can be very violent if the star is
very immense, ending in things like a black hole
and/or a supernova, perhaps leaving a neutron
star behind. If the star is not very massive,
like the Sun or even smaller, it ends by ejecting
part of its atmosphere and then settling down to
a cold, dense white dwarf. .
3
Life of a star
The life'' of a star is the time during which
it slowly burns up its hydrogen fuel, and evolves
only slowly in the process. The star is in force
balance between pressure and gravity. It is also
in energy balance between production by fusion
reactions, transport by photon radiation, and
loss from the surface by the (usually) visible
radiation by which we can detect the star.
4
Zodiac Signs
What is the Zodiac? If you could observe the
motion of the Sun against the stars for an entire
year, it would appear to trace out a large circle
in the sky that we call the "ecliptic". This
circle also happens to be the plane of the
Earth's orbit around the Sun. The zodiac is a
thin band of the sky on either side of the
ecliptic. The word "zodiac" literally means
"circle of life", since most of the zodiac signs
are animals or people.
What are Zodiac Signs? The zodiac is divided into
12 signs, each 30 degrees long. The cycle of
zodiac signs starts with Aries, which begins at
the spot on the ecliptic where the Sun is on the
first day of spring. These 30 degree sections of
the sky are actually blocks of space, not time.
Zodiac signs are often confused in the popular
mind with "sun signs". When a person says, "I'm
an Aries!", what they're really saying is they
were born at a time of the year when the Sun is
in the zodiac sign of Aries. Because our calendar
is designed to mimic the motions of the Sun
around the zodiac, the Sun is in Aries at nearly
the same time period each year (roughly March
20th or 21st to April 19th or 20th). Hence the 12
sun signs are like months of a calendar based on
the zodiac. They represent time, not space. The
motions of the other planets through the zodiac
signs can be quite irregular, compared to the
Sun's motion. On average, they range from the
fast moving Moon (which spends about 2-1/2 days
in each sign) to the slow poke Pluto (roughly 12
to 24 years in each sign).
5
Your sign explained!
6
Sparklee Starz