CharacteristicsFacts & figure ShapeSpherical Size ( diameter )1.4 milion KM ( 109 x Earth’ s diameter ) CompositionAbout 76% hydrogen, 22% helium, iron, nickel, silicon, and carbon make up the remaining 2% by mass. Mass1.989 x 10( 30) kg ( x Earth’s mass ) Density1.41 gcm (-3) ( compared with density of water ) AgeAbout 4500 milion years Distart from Earth km Gravitational force28 x earth’s gravity Surface temperature6000 *C Core temperature milion *C

The Sun

Effect s of the sun’s phenomena on the Earth

Generation Of Energe By The Sun The sun’s energy generated from deep within the core of the sun Temperature and pressure : extremely high Nuclear fusion takes place Hydrogen helium huge amount or energy

THE SUN’S ENERGY

Galaksi

Galaxies Galaxies are giant structures that contain hundreds of billions of stars, Oh, by the way…There are billions of galaxies in the universe Galaxies contain single stars, double stars, star systems and lots of gas and dust between the stars. Astronomers classify most galaxies into three main categories: – spiral galaxies, – elliptical galaxies, – irregular galaxies

Spiral Galaxies Spiral galaxies have arms that spiral outward, like pinwheels tutorial/example_face_on_spiral.jpg HubbleBeauty/NGC1512BarredSpiralGalaxy.jpg

The Milky Way Our solar system exists in the Milky Way galaxy, and is about 25,000 light-years away from the center of the Milky Way Our solar system is about two-thirds of the way out on one of the spiral arms of the Milky Way We can’t see the center of the Milky Way due to the massive cloud of gas and dust between the sun and the center

The Milky Way

The Milky Way

Elliptical Galaxies Elliptical galaxies look like flattened balls Have little gas and dust between the stars so new stars can not form – Ellliptical galaxies only contain old stars jpegMod/PIA08696_modest.jpg

Elliptical Galaxy

Irregular Galaxies Some galaxies don’t have a regular shape, they are called irregular galaxies The Large Magellanic Cloud is an irregular galaxy main_image_feature_666_ys_4.jpg

Irregular Galaxy

Irregular Galaxy

Bintang dan Buruj

Relative sizes of stars

TEMPERATURE AND COLOUR orangered > *C *C *C6 000 *C *C4 000 *C *C

f

Twelve of the constellation from the zodiac

Perbandingan Bintang berdasarkan suhu dan Saiz

Kelahiran Bintang

Kematian Bintang

Bintang, Galaksi dan Alam Semesta

Test

Penutup 2. Tasbih Kifarah. 1. Baca Surah Al-`Ashr