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There is only one Sun. Sun is the name of the star that is closest to Earth. While light from all stars eventually reaches Earth, the Sun's light is the only one close enough to generate heat.
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What measurements are needed to determine the entire mass of the Milky Way Galaxy?
The average stellar mass x the number of stars ______________________________ We can calculate the mass of the Milky Way by observing the speed at which stars orbit the center, as long as we can determine how far away they are from the center.
What percentage of the mass of milky way galaxy is contained within stars?
A rough guess 99.9 %
How big is the stars in your galaxy?
Our galaxy, the milky way, has stars much bigger than our sun. Our sun is considered one solar mass in it's size. The Milky Way has star that range from 1/2 a solar mass to 50 or 100 solar masses.
What is milky ways gravity compared to the earths gravity?
There are roughly 400 billion stars in the Milky Way. The average mass of each of these stars is about half that of our sun, which is about 300,000 times as massive as Earth. Multiplying these numbers gives us the mass of the galaxy compared to the mass of the earth: 150,000 x 400,000,000,000 = 60 trillion. So the gravitational pull of the galaxy is roughly 60 trillion times that of the earth.
Which has more mass the milky way galaxy or the black hole in the center of the milky way galaxy?
Good question - The black hole(s) (i.e. Sagittarius A*) at the center of the Milky Way are estimated to be a little more than 4 million solar masses (e.g. stars like our Sun). The Milky Way galaxy is a barred spiral galaxy 100,000-120,000 light-years in diameter and has been estimated to be hosting 200-400 billion stars, and at least as many planets. Therefore the answer is that the accumulated mass of the Milky Way galaxy (of course excluding its centric black hole(s)) is greater than the mass of the black hole(s) at the center of the Milky Way.
What is the estimated average mass of our Galaxy in relation to the Sun?
The Milky Way Galaxy has a mass of 5.8 × 10^11 solar masses.
What is some information on the Milky Way galaxy?
Our galaxy is called the Milky Way because people on Earth see it as a milky band in the night sky. Also, in Greek Mythology, the Milky Way was created by milk spilled when Hera, the wife of Zeus, was feeding Hercules. The Milky Way Galaxy is fifteen-twenty billion years old. The mass of the Milky Way Galaxy is about 750 billion to 1 trillion solar masses. (One solar mass is equal to the mass of the Sun which is 2 x 1027.) The diameter of the Milky Way Galaxy is approximately 100,000 light years. At the center of the concave, spiral-shaped galaxy, there is an ominous black hole. Any stars that you can see in the night sky without a telescope are a part of the Milky Way Galaxy. The Milky Way Galaxy is estimated to have between 100 and 400 billion stars. The solar systems, mainly the stars, orbit the Milky Way Galaxy. The oldest stars in the Milky Way lie near the center of the galaxy and in a halo, which consists of globular clusters and lone ancient stars.The Galaxy is believed to have six logarithmic arms. They are named as Perseus Arm, the Scutum-Crux Arm, the Carina arm, the Sagittarius arm, the Norma arm, and Cygnus Arm. Along the spiral arms, away from the galactic center, interstellar clouds collapse because of gravity into tight fists of gas and dust that become clusters of new stars. The Milky Way Galaxy is the second largest galaxy in a group classified as the "Local Group". Our galaxy is heading towards another galaxy, which is the Andromeda Galaxy. This means that we are on a high collision course and are racing at a speed of about 100 miles per second. A crash will happen in the next 2 to 4 billion years. I hope this helped!
How does the Andromeda galaxy compare with the milky way galaxy?
They are both spiral galaxies, except the Milky Way is a barred spiral and the Andromeda is a typical spiral galaxy. The Andromeda has at least twice as many stars as the Milky Way, and it has more mass. The galaxies are going to merge in 4 billion years, and now they are about 2 million light years apart.
Size of Andromeda galaxy?
Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.Mass similar to our own Milky Way; about a trillion stars; diameter estimated at 140,000 light-years.
What is a mass of stars called?
An isolated and distinct mass of stars is a galaxy.
Is there evidence for a black hole at the center of your galaxy?
Yes. For example, stars close to the center of our Milky Way have been observed to move around a massive object; the movement of the stars is consistent with a mass of around 4 million times the mass of our Sun.
Is the milky way galaxy the biggest galaxy discovered?
No. Although the Milky Way is a relatively large galaxy it is nowhere near the largest known. Galaxies dozens of times the size and hundreds of times the mass of the Milky Way have been observed.
