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Almathera Ten Pack 3: CDPD 3
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Almathera Ten on Ten - Disc 3: CDPD3.iso
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scope
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126-150
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scopedisk146
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fastfacts
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solar-system
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stars
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1995-03-19
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60 lines
THE 20 BRIGHTEST STARS
STAR DISTANCE (LIGHT- YEARS)
1. SIRIUS 8.8
2. CANOPUS 98.0
3. ALPHA CENTAURI 4.3
4. ARCTURUS 36.0
5. VEGA 26.0
6. CAPELLA 46.0
7. RIGEL 900.0
8. PROCYON 11.0
9. BETELAEUSE 490.0
10.ACHERNAR 114.0
11.BETA CENTAURI 290.0
12.ALTAIR 16.0
13.ALPHA CRUCIS 390.0
14.ALDEBARAN 68.0
15.SPICA 300.0
16.ANTARES 250.0
17.POLLUX 35.0
18.FOMALHAUT 23.0
19.DENEB 1,630.0
20.BETA CRUCIS 490.0
STAR: Is a hugh ball of glowing gas in the sky.
NUMBER: About 200 billion billion stars in the known universe.
AGE: Up to 12 billion yrs. Most stars are between 1 million and 10 billion
yrs. old.
COMPOSITION: About 75% hydrogen; 22% helium; and traces of most other
elements (oxygen, neon, carbon,and nitrogen).
MASS: From 1/50 the mass of the sun to 50 times the mass of the sun.
NEAREST STAR EXCLUDING THE SUN: Proxima Centauri, 4.3 light-yrs. away.
FARTHEST STARS: In galaxies billions of light-yrs. away.
BRIGHTEST STAR EXCLUDING THE SUN: Sirius
LARGEST STARS: Have a diameter of about 1 billion miles (1.6 billion km.)
About 1,000 times that of the sun.
SMALLEST KNOWN STARS: Nuetron stars that have a diameter of 10 miles
(16 km.).
Colors: From Blue through white, yellow, and orange, to red, depending on
star's surface temperature.
TEMPERATURE: Surface, from about 50,000°F (28,000°C.) on blue stars to about
5,000°F. (2800°C.) on red stars; interior, more than
2,00,000°F. (1,100,000°C.)
RADIATIONS: Heat, light, radio waves, ultraviolet rays,X rays.
ENERGY SOURCE: Nuclear fusion process and other processes that change
hydrogen into helium and energy.