M17 (Also called the Swan Nebula) is an H II region (emission nebula) that lies between 5000-6000 light-years from Earth. The Omega Nebula is a star factory sculpted by stellar winds and radiation. The cavernous appearance of this emission nebula was carved out by energetic light from hot, massive stars.M17 (Also called the Swan Nebula) is an H II region (emission nebula) that lies between 5000-6000 light-years from Earth. The Omega Nebula is a star factory sculpted by stellar winds and radiation. The cavernous appearance of this emission nebula was carved out by energetic light from hot, massive stars.
What type of nebula is the Swan nebula?
What kind of nebula is Omega Nebula?
Emission nebula The Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula (catalogued as Messier 17 or M17 or NGC 6618) is an H II region in the constellation Sagittarius….Omega Nebula.
| Emission nebula | |
|---|---|
| Apparent dimensions (V) | 11 arcmins |
| Constellation | Sagittarius |
| Physical characteristics | |
| Radius | 11 ly |
What kind of nebula is M17?
the Omega Nebula Messier 17 (M17), also known as the Omega Nebula, is a famous star-forming nebula located in the southern constellation Sagittarius. The diffuse emission nebula lies near the constellation's northern border with Scutum, at a distance of 5,000 to 6,000 light years from Earth. It has an apparent magnitude of 6.0.
Why is it called the Swan Nebula?
One of the brightest and most massive star-forming regions in our galaxy, the Omega or Swan Nebula, came to resemble the shape resembling a swan's neck we see today only relatively recently. New observations reveal that its regions formed separately over multiple eras of star birth.
What does the Omega Nebula look like?
The Omega Nebula – aka M17 – is barely visible to the unaided eye on a dark, moonless night. To see it, it's best to use binoculars or low-power magnification on a telescope. The Omega Nebula is very near another prominent nebula, known as M16 or the Eagle Nebula.
What is a planetary nebula?
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.
How many reflection nebulae are there?
500 reflection nebulae Reflection nebulae and emission nebulae are often seen together and are sometimes both referred to as diffuse nebulae. Some 500 reflection nebulae are known.
What causes dark nebula?
What causes a dark nebula? They are caused by interstellar clouds with a very high concentration of dust grains obscuring light. These dust clouds obscure and block visible light objects behind it. Such as background stars or emission or reflection nebulae.
What does nebula look like?
0:342:49What Is a Nebula? – YouTubeYouTube