The Milky Way contains some 200 × 109 stars, and interstellar dust and gas (∼200 pc thick) which spreads out to a diameter of about 50 kpc (hot gas atoms, the halo). Our sun is located at the outer edge of one of the spiral arms, about 8.5 kpc from the galactic center. The...
Size and Shape of the Milky Way The Milky Way is a large barred spiralgalaxycomprising an estimated 200 billion stars (some estimates range as high as 400 billion) arrayed in the form of a disk, with a central elliptical bulge (some 12,000 light-years in diameter) of closely packed stars...
The Milky Way Galaxy is twisted in shape 银河系是弯的Astronomers have created the most precise map to date of the Milky Way—by tracking thousands of big pulsating stars spread throughout the galaxy, demonstrating that its disk of myriad(无数的) stars is not flat but dramatically warped and...
On the scale of approximately a diameter of 3 or 4 clusters, the Universe would then be slightly anisotropic but would become isotropic beyond that. It is important to specify that this is a soft anisotropy because at this scale of 5Mpc it is only a half-space which is favored and not ...
The sizes of stellar associations are large; the averagediameterof those in the Galaxy is about 250light-years. They are so large and loosely structured that their self-gravitation is insufficient to hold them together, and in a matter of a few million years the members disperse into surroundin...
inMilky Way Galaxy Also known as: The Galaxy Written by Paul W. Hodge Professor Emeritus, Department of Astronomy, University of Washington, Seattle. Author ofThe Andromeda Galaxy;Higher then Everest: An Adventurer's Guide to the Solar System; and others. ...
What is the biggest planet in the Milky Way? The biggest known planet in the Milky Way may be HD 100546 b, which is a very large gas giant in the process of forming with a diameter roughly 6.9 times that of Jupiter, or 77 times that of Earth. ...
Step-by-Step Solution:1. Understanding the Question: The question asks about the classification of the Milky Way galaxy. We need to identify which type of galaxy it is from the given options.2. I
In 2008, astronomers Reinhard Genzel and Andrea Ghez determined Sagittarius A* to have a mass 4.3 million times that of the sun. Astronomers have also calculated that the diameter of the Milky Way’s supermassive black hole is around 14.6 million miles (23.5 million kilometers) . This is ...
This is a drawing of the Milky Way looking down from above. The evidence for this picture is provided below. The Sun is just one of 200 billion stars in this typical barred-spiral galaxy that is about 90 000 light years in diameter. A larger and unlabelled version of the above map is...