What is a planetary nebula? A) nebula of gas and dust around a giant planet. B) nebula of gas and dust around any planet. C) result of a relatively gentle stellar outburst in which matter is ejected into space. D) result of a violent stellar outburst in which the entire star is blown apart..
In this regard, what is a planetary nebula quizlet astronomy?
Planetary Nebula. A shell of gas from stars like our sun, at the end of their lifetime, there is no materials and they need to form a new star. main sequence to red star.
Subsequently, question is, how does a planetary nebula form quizlet? A planetary nebula is formed when a red giant ejects its outer atmosphere. The beautiful images show that a planetary nebula is a stage in the evolution of a low mass star. A white dwarf is the carbon core of a red giant that has ejected its photosphere as a planetary nebula.
Just so, what is the best description of what a planetary nebula is?
A planetary nebula is an astronomical object consisting of a glowing shell of gas and plasma formed by certain types of stars at the end of their lives. They are a short-lived phenomenon, lasting a few tens of thousands of years, compared to a typical stellar lifetime of several billion years.
What causes a planetary nebula quizlet?
Planets engulfed in the flame of a red giant continue their orbit inside the star, churning it up and causing material to be ejected irregularly. When the Sun dies it will most likely become a planetary nebula but it will be much smaller than most we can currently see from Earth.
Related Question Answers
What happens to the core of a star after it ejects a planetary nebula?
What happens to the core of a star after it ejects a planetary nebula? It becomes a white dwarf. Low-mass stars are cooler and less luminous than high-mass stars.What happens when a star exhausts its core hydrogen supply?
What happens when a star exhausts its core hydrogen supply? Its core contracts, but its outer layers expand and the star becomes bigger and brighter. It is fusing hydrogen into helium in a shell outside the core.What is a black dwarf made of?
Explanation: Since the theoretical black dwarf is just a white dwarf that has cooled completely, then it should be the same composition as a white dwarf. The final end product of fusion is iron, therefore a black dwarf would be made of iron.What kind of gas cloud is most likely to give birth to stars?
Star Formation Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.Where do white dwarf stars come from?
A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. Only the hot core of the star remains.Why does a star grow larger after it exhausts its core hydrogen?
Why does a star grow larger after it exhausts its core hydrogen? Hydrogen fusion in a shell outside the core generates enough thermal pressure to push the upper layers outward.What is a typical age for a globular cluster?
Typical results for globular clusters are that they may be as old as 12.7 billion years. This is in contrast to open clusters which are only tens of millions of years old. The ages of globular clusters place a bound on the age limit of the entire universe.What is the main observational difference between a Type Ia and a Type II supernova?
Physically, type II supernovae are caused by the collapse of a massive star. Type Ia supernovae are driven by a white dwarf which accretes enough mass to exceed the Chandrasekhar limit and collapses into a neutron star.Why is it called a nebula?
Named after the Latin word for “cloud”, nebulae are not only massive clouds of dust, hydrogen and helium gas, and plasma; they are also often “stellar nurseries” – i.e. the place where stars are born. And for centuries, distant galaxies were often mistaken for these massive clouds.How does a nebula work?
Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger.Where does a planetary nebula come from?
A planetary nebula is created when a star blows off its outer layers after it has run out of fuel to burn. These outer layers of gas expand into space, forming a nebula which is often the shape of a ring or bubble.What is a planetary nebula made of?
A star like our sun expands to red giant at the end of its main sequence, and the outer layers are puffed out into space, drifting outward. This gas forms the planetary nebula. The nebula is this made of the gases found in the outer layers of a red giant - hydrogen, helium, carbon, nitrogen and oxygen.What is a helium flash quizlet?
The helium flash is the explosive fusion of helium that occurs in some stars about the size of our Sun when the core has contracted and gotten hot enough to begin fusing helium in carbon.Which property of a star is most important in controlling its evolutionary cycle?
The time scales of stellar evolution depend on the mass of the star. The rule governing stellar evolution is the more mass present, the faster the evolution for the star through the fuel consumption stages. Another property directly linked to the mass and evolution of a star is its luminosity.What is the significance of 8 solar masses in stellar evolution?
What is the significance of 8 solar masses in stellar evolution? Above 8 solar masses, a high mass star must go through a violent type II supernova core collapse, producing a neutron star or even a black hole for the most massive stars.Which of these will the sun do become?
As such, when our Sun runs out of hydrogen fuel, it will expand to become a red giant, puff off its outer layers, and then settle down as a compact white dwarf star, then slowly cooling down for trillions of years.How long do planetary nebulae usually last?
about 10,000 years
What keeps a white dwarf from collapsing due to gravity quizlet?
Degeneracy pressure keeps a white dwarf from collapsing under its own gravity. The maximum mass that a white dwarf can support against collapse is 1.4 solar masses due to the Chandrasekhar limit. High mass stars are different from low mass stars, because high mass stars can fuse elements heavier than carbon. 
