What Type of galaxy is NGC 7331?
spiral galaxy
This NASA/ESA Hubble Space Telescope image shows a spiral galaxy known as NGC 7331. First spotted by the prolific galaxy hunter William Herschel in 1784, NGC 7331 is located about 45 million light-years away in the constellation of Pegasus (The Winged Horse).
Who discovered NGC 7331?
William Herschel
The galaxy, known as NGC 7331 and sometimes referred to as our galaxy’s twin, is found in the constellation Pegasus at a distance of 50 million light-years. This inclined galaxy was discovered in 1784 by William Herschel, who also discovered infrared light.
What is the Milky Way NGC number?
NGC 3953 (top left) is 55 million light years away and 95000 light years in diameter. NGC 5970 (top right) is 105 million light years away and 85000 light years in diameter….The Shape of the Milky Way – The Evidence.
| Properties of the Milky Way | |
|---|---|
| Length of the central bar | 25 000 light years |
Which Caldwell object is the Dark Nebula?
Caldwell 99
Caldwell 99 is a dark nebula — a dense cloud of interstellar dust that completely blocks out visible wavelengths of light from objects behind it. The object at the center of the image is a (much smaller) protoplanetary nebula.
Can you see the Milky Way in space?
To begin with, the Milky Way is easier to see. It shines a little brighter because of the lack of atmosphere, but astronauts still have to fight light pollution. Ultimately, a majority of the compartments on the ISS have a lot of ambient light.
What type of nebula is the cocoon?
Reflection nebula
IC 5146
| Reflection nebula | |
|---|---|
| Apparent dimensions (V) | 12′ |
| Constellation | Cygnus |
| Designations | Cocoon Nebula, Caldwell 19, Sh 2-125, Cr 470 |
| See also: Lists of nebulae |
Why can’t humans see the entire shape of the Milky Way?
Since our solar system lies in one of the spiral arms, we live in the flat plane of the Milky Way. Dust and gas are necessary to form stars, and most stars are formed within the spiral arms. Note that we can’t really see the center of the galaxy with our eyes because there is dust in the way!
Does the Milky Way move?
The Milky Way as a whole is moving at a velocity of approximately 600 km per second with respect to extragalactic frames of reference. The oldest stars in the Milky Way are nearly as old as the Universe itself and thus probably formed shortly after the Dark Ages of the Big Bang.