Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Mercury distance from sun |
57.9 million kilometers |
|
|
Day in Mercury |
88 days |
|
|
Smallest and fastest planet |
Mercury |
|
|
Venus distance from sun. |
108.2 million km |
|
|
Period of revolution around the sun |
108.2 million km |
|
|
solar system consist of
|
planets,dwarf planets,satellites, asteroids, meteoroids, comet
|
|
|
Definition of sun
|
Sun is star, it is huge ball of gases mostly hydrogen and helium
|
|
|
Proximal centaurs
|
closest star near to Sun and it is 40 trillion km away
|
|
|
Three parts of sun interior
|
The core,the radioactive zone, convective zone.
|
|
|
Core of Sun
|
it is hottest region, nuclear fusion reactions occurs, it extends from center to 25% of solar radius
|
|
|
Density of core of sun is
|
150 times the density of water
|
|
|
section which produce energy through fusion
|
Core
|
|
|
Temperature of core is
|
15 million degree Celsius
|
