Just as explained during Dr. Plavchan's lecture, the Law of Conservation and Angular Momentum can be related to an ice skater who spins faster as he or she moves their arms close to their body. Interstellar clouds follow the same principle. As the rate of contraction in the interstellar clouds increase, so does the level of rotation.
It depends on what stage you consider to be an actual star. There are many stages that a star endures such as its protostar phase and main sequence. Overall, stars take a very long time to form. Roughly about 10 million years.
Not all nebulae are capable of forming stars. For example, some nebulae may have interstellar dust, but they may not necessarily have enough to start the formation of a star. Otherwise, they are just composed of interstellar dust, standing at a random location in the universe.
A protostar is the phase a star undergoes before reaching the main sequence. During a stars protostar phase, it spends its time gathering mass from interstellar clouds.
You said the interstellar cloud follows the law of conservation and angular motion. Can you explain those concepts?
ReplyDeleteJust as explained during Dr. Plavchan's lecture, the Law of Conservation and Angular Momentum can be related to an ice skater who spins faster as he or she moves their arms close to their body. Interstellar clouds follow the same principle. As the rate of contraction in the interstellar clouds increase, so does the level of rotation.
Deletehow long does it take for a star to form?
ReplyDeleteIt depends on what stage you consider to be an actual star. There are many stages that a star endures such as its protostar phase and main sequence. Overall, stars take a very long time to form. Roughly about 10 million years.
DeleteWhat is a protostar and what is it made of?
ReplyDeleteA protostar is made from the elements contained in the star forming clouds and nebulae. Protostars are mostly composed of hydrogen.
DeleteAre all Nebulae star forming or do some serve other functions?
ReplyDeleteNot all nebulae are capable of forming stars. For example, some nebulae may have interstellar dust, but they may not necessarily have enough to start the formation of a star. Otherwise, they are just composed of interstellar dust, standing at a random location in the universe.
DeleteWhat is the difference between a protostar and main sequence star?
ReplyDeleteA protostar is the phase a star undergoes before reaching the main sequence. During a stars protostar phase, it spends its time gathering mass from interstellar clouds.
DeleteWhere are the other stars if they aren't in the main sequence?
ReplyDeleteThey are either at their beginning stages, such as the protostar phase, or at the end of their lifespan, such as a super nova explosion.
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