Astronomy
- The Large Magellanic Cloud
Large Magellanic Cloud [LMC] is the third nearest galaxy to the Milky Way at a distance of 163,000 light-years. It has a diameter of about 14,000 light years and a mass of approximately 10 billion Suns, making it roughly 1/100 as massive as...
- Andromeda Galaxy M31
We finally have got some decent dark skies here in Norway. My first image this autumn is Andromeda - M31-M32- M110. The Andromeda galaxy is our nabour galaxy only 2.5 MLY away. It has trillions of stars and Magitude 4.4, you can see it easy with a binocular...
- Andromeda Galaxy M31, M32 And M110
The Andromeda galaxy is our nabour galaxy only 2.5 MLY away. It has trillions of stars and Magitude 4.4, you can see it easy with a binocular under dark skies. ...
- Cannibalism Among Galaxies
There was an old theory that described the most intriguing thing about galaxies and now it was proved, the theory that bigger galaxies try to feed on smaller galaxies when they come near, is no more an unproved theory but is a fact today. A recent study...
- Milkyway Galaxy
The Milky Way Galaxy, commonly referred to as just the Milky Way, or sometimes simply as the Galaxy, is the galaxy in which the Solar System is located. The Milky Way is a barred spiral galaxy that is part of the Local Group of galaxies. It is one of...
Astronomy
Andromeda galaxy
The Andromeda Galaxy is a spiral galaxy approximately 2,500,000 light-years (1.58×1011 AU) away in the constellation Andromeda. It is also known as Messier 31, M31, or NGC 224, and is often referred to as the Great Andromeda Nebula in older texts. Andromeda is the nearest spiral galaxy to our own, the Milky Way, but not the closest galaxy overall. As it is visible as a faint smudge on a moonless night, it is one of the farthest objects visible to the naked eye, and can be seen even from urban areas with binoculars. It gets its name from the area of the sky in which it appears, the Andromeda constellation, which was named after the mythological princess Andromeda. Andromeda is the largest galaxy of the Local Group, which consists of the Andromeda Galaxy, the Milky Way Galaxy, the Triangulum Galaxy, and about 30 other smaller galaxies. Although the largest, Andromeda may not be the most massive, as recent findings suggest that the Milky Way contains more dark matter and may be the most massive in the grouping.The 2006 observations by the Spitzer Space Telescope revealed that M31 contains one trillion (1012) stars, more than the number of stars in our own galaxy, which is estimated to be c. 200-400 billion.
While the 2006 estimates put the mass of the Milky Way to be ~80% of the mass of Andromeda, which is estimated to be 7.1 × 1011 solar masses,a 2009 study concluded that Andromeda and the Milky Way are about equal in mass.
At an apparent magnitude of 3.4, the Andromeda Galaxy is notable for being one of the brightest Messier objects,making it easily visible to the naked eye even when viewed from areas with moderate light pollution. Although it appears more than six times as wide as the full Moon when photographed through a larger telescope, only the brighter central region is visible to the naked eye or when viewed using a binoculars or a small telescope.
While the 2006 estimates put the mass of the Milky Way to be ~80% of the mass of Andromeda, which is estimated to be 7.1 × 1011 solar masses,a 2009 study concluded that Andromeda and the Milky Way are about equal in mass.
At an apparent magnitude of 3.4, the Andromeda Galaxy is notable for being one of the brightest Messier objects,making it easily visible to the naked eye even when viewed from areas with moderate light pollution. Although it appears more than six times as wide as the full Moon when photographed through a larger telescope, only the brighter central region is visible to the naked eye or when viewed using a binoculars or a small telescope.
from:www.wikipedia.org
- The Large Magellanic Cloud
Large Magellanic Cloud [LMC] is the third nearest galaxy to the Milky Way at a distance of 163,000 light-years. It has a diameter of about 14,000 light years and a mass of approximately 10 billion Suns, making it roughly 1/100 as massive as...
- Andromeda Galaxy M31
We finally have got some decent dark skies here in Norway. My first image this autumn is Andromeda - M31-M32- M110. The Andromeda galaxy is our nabour galaxy only 2.5 MLY away. It has trillions of stars and Magitude 4.4, you can see it easy with a binocular...
- Andromeda Galaxy M31, M32 And M110
The Andromeda galaxy is our nabour galaxy only 2.5 MLY away. It has trillions of stars and Magitude 4.4, you can see it easy with a binocular under dark skies. ...
- Cannibalism Among Galaxies
There was an old theory that described the most intriguing thing about galaxies and now it was proved, the theory that bigger galaxies try to feed on smaller galaxies when they come near, is no more an unproved theory but is a fact today. A recent study...
- Milkyway Galaxy
The Milky Way Galaxy, commonly referred to as just the Milky Way, or sometimes simply as the Galaxy, is the galaxy in which the Solar System is located. The Milky Way is a barred spiral galaxy that is part of the Local Group of galaxies. It is one of...