This image of the Andromeda Galaxy, Messier 31, also shows its satellite galaxies, Messier 110 (top) and Messier 32 (lower right of M31’s nucleus). Dust lanes between the spiral arms of M31 can be seen in large amateur instruments, but the bright nucleus, M32 and M110 are easy targets for small telescopes. A 65mm f/6.5 refractor and Canon 1100D DSLR were used to capture this portrait of our largest galactic neighbour from rural Norfolk on 29 November 2013. Magnitude +4.5 nu (ν) Andromedae is the blue star in the lower left. Image credit: Ade Ashford.
Now that the British Isles are no longer experiencing twilight all night, keen observers are already looking forward to the ‘season of mists and mellow fruitfulness’ with its dark skies at a sociable hour. Is it too soon to be thinking of autumn? Possibly, but the equinox is almost five weeks away. Article Source…
ANDROMEDA GALAXY FACTS
The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way and is one of a few galaxies that can be seen unaided from the Earth. In approximately 4.5 billion years the Andromeda Galaxy and the Milky Way are expected to collide and the result will be a giant elliptical galaxy. Andromeda is accompanied by 14 dwarf galaxies, including M32, M110, and possibly M33 (The Triangulum Galaxy).
Designation: M31, NGC 224
Distance from Milky Way: 2.5 million light-years
Diameter: 260,000 light-years
Mass: 400 billion solar masses
Number of Stars: 1 trillion
Hubble Finds Giant Halo Around the Andromeda Galaxy
Scientists using NASA’s Hubble Space Telescope have discovered that the immense halo of gas enveloping the Andromeda galaxy, our nearest massive galactic neighbor, is about six times larger and 1,000 times more massive than previously measured. The dark, nearly invisible halo stretches about a million light-years from its host galaxy, halfway to our own Milky Way galaxy. This finding promises to tell astronomers more about the evolution and structure of majestic giant spirals, one of the most common types of galaxies in the universe. Article Source…
Andromeda Galaxy Is Surrounded by a Supersized Gas Halo
One of the Milky Way’s closest galactic neighbors is surrounded by a much bigger halo of gas than previously thought, new observations from the Hubble Space Telescope reveal.
The halo of the Andromeda Galaxy — the nearest spiral galaxy to the Milky Way — is about six times larger and 1,000 times more massive than measured before, the new observations show. It is so large that if the halo were visible from Earth, it would be 100 times the diameter of the full moon — or about the size of two basketballs held at arm’s length. Article Source…
Andromeda galaxy is Milky Way’s next-door neighbor
Although a couple of dozen minor galaxies lie closer to our Milky Way, the Andromeda galaxy is the closest major galaxy to ours. Excluding the Large and Small Magellanic Clouds, which can’t be seen from northerly latitudes, the Andromeda galaxy – also known as M31 – is the brightest galaxy in all the heavens. It’s the most distant thing you can see with your unaided eye, at 2.3 million light-years. To the eye, it appears as a smudge of light larger than a full moon. Follow the links below to learn more about the Andromeda galaxy. Article Source…
So this was all about Andromeda Galaxy. Have you anything to say? Any facts? Discuss in the comments below.