UNIVERSE
PLANET - ATTRIBUTE - MOON - ATMOSPHERE - REVOLUTIONARY PERIOD
Mercury (58 ml km) - Smallest - No - No - 88 -
Venus - Hottest - No - CO2 - 225
Earth – dia 12756 km, rad 6400 km - Colorful - 1 - N2,O2, argon, CO2,Neon, Helium, Methane, H2 - 365.25
Mars - Red - 2 - Dark cloudy, H2 & Helium - 687
Jupitar - Biggest/Heaviest, - shortest day - 61 - H2 and Helium - 11.86yr
Saturn - Brightest - 23 - Rings of ice & dust - 29.46yr
Uranus - Green due to Methane layer, - hottest, longest day - 15 - H2 and Helium - 84.01yrs
Neptune (5900 m km far) - Blue due to Methane layer - 2 - H2 and Helium - 164.8yrs
THE MOON (LUNA)
- Distance 385,000 km
- Mass 81 times lighter than the earth
- Rotation & Revolution 29 days, 7 hours, 43 minutes and 11.47 seconds
- It has 1/6th gravitational attraction than the earth
- It moves eastwards with the speed of 2100 miles per hour
- Only 59% of moon surface can be seen from earth.
- Moon’s surface is filled with crater due to non-existence of atmosphere which let meteorites come down and strike the moon surface.
THE SUN
- Distance 149 million km
- Mass 2〖 X10〗^30
- Diameter 1.4 million km
- Composition Hydrogen 90 %, Helium 8 %, Heavy elements 2%
- Rotation 36 days
- Revolution 250 bn years around center of the galaxy
- Contains 99.86 % mass of solar system
- Source of energy is nuclear fusion – conversion of hydrogen into helium
- The surface of the sun is 4.6 billion years of age.
- The surface temperature of the sun is 6000 C while the temperature at the center is 15 million C (Photosphere & Chromospheres)
- In almost 5 billion years, when all hydrogen in its core has been used up, the sun into a red giant before becoming a white dwarf and finally will die out.