What Is The Difference Between An Emission And A Reflection Nebula Quizlet?

What is the reflection nebula made of?

A reflection nebula is a cloud of gas and dust which does not create its own light, but instead shines by reflecting the light from nearby stars.

The brightest reflection nebulae are places where new stars are being formed.

Here the gas and dust is thick and shines by the light of new, bright stars..

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 does a reflection nebula look like?

A reflection nebula is a cloud of interstellar gas and dust that reflects the light from other stars. Reflection nebulae mostly appear to have a blue colour. … This is because particles in the nebula scatter (or reflect) blue light more efficiently than they scatter red light.

What is the definition of a nebula?

A nebula is a giant cloud of dust and gas in space. 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. Other nebulae are regions where new stars are beginning to form. … For this reason, some nebulae are called “star nurseries.”

What is a dark nebula quizlet?

Dark Nebula. Clouds of dust which are simply blocking the light from whatever is behind. They are physically very similar to reflection nebulae; they look different because of the geometry of the light source, the cloud and the Earth. Often seen in conjunction with the reflection and emission nebulae.

What causes reflection nebula?

Explanation: Reflection nebulae reflect light from a nearby star. Many small carbon grains in the nebula reflect the light. The blue color typical of reflection nebula is caused by blue light being more efficiently scattered by the carbon dust than red light.

What are the characteristics of an emission nebula?

Emission nebulae are clouds of ionised gas that, as the name suggests, emit their own light at optical wavelengths. Their mass generally ranges from 100 to 10,000 solar masses and this material can be spread over a volume of less than light year to several hundred light years.

What is the difference between an emission and a reflection nebula?

An emission nebula is a cloud of ionized gas. The most common source for ionizations are high energy photons emitted from a nearby star. … Reflection Nebulae are clouds of dust which are simply reflecting the light of a nearby star or stars.

What is a nebula quizlet?

nebula. a large cloud of gas and dust in interstellar space; a region in space where stars are born. solar nebula. a rotating cloud of gas and dust from which the sun and planets formed. nuclear fusion.

What causes an emission nebula?

Emission Nebula – An emission nebula is a cloud of high temperature gas. Within this type of nebula, a star energizes the atoms in the cloud with ultraviolet radiation. As these atoms fall back to lower energy states, they emit radiation. … This causes the nebula to glow.

How is a dark nebula created?

Dark nebulae are interstellar clouds that contain a very high concentration of dust. … The average temperature inside a dark nebula ranges from about 10 to 100 Kelvin, allowing hydrogen molecules to form and star formation to take place.

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 is it like inside a nebula?

Nebulae are pretty only when they are hundreds of light-years away. They look thick and cloudy only because you see the structures of light-years in thickness. Once you’re close to them, their light spreads out so much that you can’t see them. You could fly your spaceship right into the nebula and never even know it.

When did our solar system begin to form quizlet?

5 billion years ago. How did our solar system begin to form? A large cloud of dust and gas began to contract under the force of gravity.

Where are emission nebulae found quizlet?

Emits it’s on light, with the characteristic emission spectra similar to that of a hot, thin gas. – Emission nebulae are found near hot, luminous stars of spectral types O and B.