What is the best definition of a nebulae?

What is the best definition of a nebulae?

Definition: A nebula is a formation in space which is constituted mostly of helium, dust, and other gases in various concentrations. A nebula is also believed to be one of the primary stages in the formation of stars.

What are the characteristics of nebula?

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.

What is a nebula and example?

The definition of a nebula is a cloud of gas and dust in outer space. A mass of dust in the sky that reflects light and appears as darkness in the sky may be an example of a nebula.

What do nebulae look like?

Most nebulae – clouds of interstellar gas and dust – are difficult if not impossible to see with the unaided eye or even binoculars. But the Orion Nebula is in a class nearly all by itself. It’s visible to the unaided eye on a dark, moonless night. To me, it looks like a star encased in a globe of luminescent fog.

What is nebula in geography class 11?

Definition: A nebula is a formation in space which is constituted mostly of helium, dust, and other gases in various concentrations. A nebula is capable of exerting a gravitational pull, and the force is derived from the particles which come together to form the nebula.

What is meant by supernova?

A supernova is a large explosion that takes place at the end of a star’s life cycle. A supernova is the explosion of a star. It is the largest explosion that takes place in space.

What is nebula name and describe the different types of nebula?

Nebulae have been divided into five major categories. These are emission nebulae, reflection nebulae, dark nebulae, planetary nebulae, and supernova remnants. Emission and reflection nebulae tend to be fuzzy in appearance and lack any noticeable shape or structure. They are also known as diffuse nebulae.

How do you classify a nebula?

Hubble proposed a system to classify all nebulae. He sorted them into three basic categories: elliptical, spiral, and irregular. These categories were further subdivided according to shape (spherical to elongated ellipses, for example) and structure (hazy to distinct spiral arms, barred spirals, etc.).

What is the difference between nebula and nebulae?

As nouns the difference between nebulae and nebula is that nebulae is (nebula) while nebula is (astronomy) a cloud in outer space consisting of gas or dust (eg a cloud formed after a star explodes).

Is a nebula a galaxy?

A nebula is a cloud of dust and gas, usually tens to hundreds of light years across. A galaxy is much larger — usually thousands to hundreds of thousands of light years across. Nebulae are one of the many things that galaxies are made of, along with stars, black holes, cosmic dust, dark matter and much more.

Do nebulae have color?

Emission nebulae tend to be red in color because of the abundance of hydrogen. Additional colors, such as blue and green, can be produced by the atoms of other elements, but hydrogen is almost always the most abundant. Dark Nebula – A dark nebula is a cloud of dust that blocks the light from objects behind it.

What does a nebula look like through a telescope?

Through the telescope, these nebulae appear as fluffy, cotton-ball-like structures in a variety of shapes and colors. Nebulae are categorized into four major types: diffuse, planetary, dark, and supernovae remnants. You will also look at a diffuse nebula that is currently birthing stars.

What’s the difference between nebulae and a supernova?

Difference between Nebula and Supernova Key Difference: Nebula is a cloud in deep space consisting of gas or dirt/dust (e.g. cloud formed after a star explodes). Supernova is the last stage of the life of a star and is a very huge explosion from a dead star.

What do nebulae actually look like?

A nebula is a cloud of gas and dust in space. Nebulas appear in many shapes and colors. Sometimes a nebula blocks out the light of stars beyond it. When this happens, the nebula may look like a dark cloud. Other times a nebula glows a bright color, such as blue or red.

What are nebulae and how are they formed?

Nebulae are formed when a star starts running out of fuel and eventually dies out, shedding its gases into space. It turns into a planetary nebula, or supernova remnant based on its mass and luminosity.

What does a Nebula create or do?

Nebulas’ size ranges from millions of miles to hundreds of light-years in diameter.