- What is the origin of Nebula?
- What is a dark nebula made of?
- Why is the Horsehead Nebula Dark?
- What happens during the planetary nebula stage?
- What causes a dark nebula?
- What is inside a planetary nebula?
- What is it like inside a nebula?
- Is Earth in a nebula?
- What is the lifespan of a nebula?
- Why does a reflection nebula look blue?
- At what point is a star born?
- Are nebulae dangerous?
- What turns a nebula into a star?
- What does Nebula mean?
What is the origin of Nebula?
Other nebulae form as the result of supernova explosions; the death throes of massive, short-lived stars.
The materials thrown off from the supernova explosion are then ionized by the energy and the compact object that its core produces..
What is a dark nebula made of?
Dark Nebula. The dark nebulae are clumps or clouds that become opaque because of their internal dust grains. The form of such dark clouds is very irregular: they have no clearly defined outer boundaries and sometimes take on convoluted serpentine shapes.
Why is the Horsehead Nebula Dark?
The darkness of the Horsehead is caused mostly by thick dust blocking the light of stars behind it. The lower part of the Horsehead’s neck casts a shadow to the left. The visible dark nebula emerging from the gaseous complex is an active site of the formation of “low-mass” stars.
What happens during the planetary nebula stage?
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 causes a dark nebula?
The extinction of the light is caused by interstellar dust grains located in the coldest, densest parts of larger molecular clouds. … Dark clouds appear so because of sub-micrometre-sized dust particles, coated with frozen carbon monoxide and nitrogen, which effectively block the passage of light at visible wavelengths.
What is inside a planetary nebula?
A planetary nebula, abbreviated as PN or plural PNe, is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. … All planetary nebulae form at the end of the life of a star of intermediate mass, about 1-8 solar masses.
What is it like inside a nebula?
The inside of a nebula would not look that much different from what we see when we look out at space. In the visible spectrum is may look like a faint haze or darkening of the stars. … These images are combined to highlight the nebula. Often you can see right through them in some wavelengths of light.
Is Earth in a nebula?
The planet Earth is not part of any particularly named Nebula . Earth is part of the Solar System which is part of our home galaxy, the so-called “Milky Way”, which is part of the so-called Local Group , a collection of more than 50 other galaxies in the “neighborhood” of our own galaxy.
What is the lifespan of a nebula?
The various colors in images of planetary nebulae are associated with these glowing gases. From far away, the former layers of the star appear as a glowing planetary nebula, about 1000 times the size of our solar system. The fluorescent light of planetary nebulae lasts for about 10,000 years.
Why does a reflection nebula look blue?
The blue color typical of reflection nebula is caused by blue light being more efficiently scattered by the carbon dust than red light. The brightness of the nebula is determined by the size and density of the reflecting grains, and by the color and brightness of the neighboring star(s).
At what point is a star born?
At what point is a star born? When the core of a protostar has reached about 10 million K, pressure within is so great that nuclear fusion of hydrogen begins, and a star is born. What causes a star to die? We do know that all stars, regardless of their size, eventually run out of fuel and collapse due to gravity.
Are nebulae dangerous?
There’s nothing especially dangerous about the nebula specifically, deep space will kill your crew in time, if their ship is damaged. They need to escape this nebula to get to somewhere they can do long-term repairs on their ship.
What turns a nebula into a star?
Star Forming Nebula Stars are born in clouds of gas and dust. … These knots contain sufficient mass that the gas and dust can begin to collapse from gravitational attraction. As it collapses, pressure from gravity causes the material at the center to heat up, creating a protostar.
What does Nebula mean?
A nebula is a cloud of dust or gas found between stars. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova.