Differences between Terrestrial and Jovian planets
Reason |
Terrestrial Planets |
Jovian Planets |
---|---|---|
Distance from the Sun during formation |
Formed closer to the Sun in the hotter inner regions of the solar nebula |
Formed further away from the Sun in the cooler outer regions of the solar nebula |
Composition of the solar nebula |
Formed from heavier elements like iron, silicon, and magnesium in the inner nebula |
Formed from lighter elements like hydrogen, helium, and ices (water, methane, ammonia) in the outer nebula |
Gravity and accretion process |
Weaker gravitational fields could not hold onto light gases effectively |
Stronger gravitational pull allowed accumulation of more gas during formation, leading to massive sizes |
Temperature and pressure conditions |
Higher temperatures and pressures prevented gases from condensing, leading to solid, rocky compositions |
Lower temperatures and pressures allowed gases to remain stable, enabling gaseous compositions |
Size and density |
Relatively small in size with high densities due to rocky, metallic compositions |
Enormous in size with low densities due to gaseous compositions |
Atmospheres |
Generally lack significant atmospheres, except for Venus and Earth |
Have thick, dense gaseous atmospheres extending deep into their interiors |
Surface characteristics |
Possess solid, rocky surfaces that can be studied directly |
Lack a well-defined solid surface, having fluid-like gaseous compositions |
Formation of Star, Planet and Solar System Class 11 Notes
The Universe is a vast expanse filled with celestial bodies, each with its unique formation process and characteristics. From stars that illuminate the cosmos to planets that orbit around them, understanding their origins and evolution is a captivating field of study. This text delves into the intricate processes that give rise to these celestial wonders, shedding light on the theories and mechanisms that shape our cosmic neighborhood.
Let us learn in detail about the formation of stars, planets, and solar system!