Search results
Results From The WOW.Com Content Network
The Andromeda Galaxy is a barred spiral galaxy and is the nearest major galaxy to the Milky Way. It was originally named the Andromeda Nebula and is cataloged as Messier 31 , M31 , and NGC 224 . Andromeda has a D 25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years ) [8] and is approximately 765 kpc (2.5 million light-years ...
A NASA conception of the collision using computer-generated imagery. While the Andromeda Galaxy contains about 1 trillion (10 12) stars and the Milky Way contains about 300 billion (3 × 10 11), the chance of even two stars colliding is negligible because
The Andromeda Galaxy (M31) has satellite galaxies just like the Milky Way. Orbiting M31 are at least 13 dwarf galaxies: the brightest and largest is M110, which can be seen with a basic telescope. The second-brightest and closest one to M31 is M32. The other galaxies are fainter, and were mostly discovered starting from the 1970s.
According to recent studies, the Milky Way as well as the Andromeda Galaxy lie in what in the galaxy color–magnitude diagram is known as the "green valley", a region populated by galaxies in transition from the "blue cloud" (galaxies actively forming new stars) to the "red sequence" (galaxies that lack star formation). Star-formation activity ...
Andromeda II (And II) is a dwarf spheroidal galaxy about 2.22 Mly away in the constellation Pisces. While part of the Local Group, it is not quite clear if it is a satellite of the Andromeda Galaxy or the Triangulum Galaxy. [citation needed] It was discovered by Sidney Van den Bergh [6] in a survey of photographic plates taken with the Palomar ...
The Pegasus Dwarf Spheroidal is a galaxy with mainly metal-poor stellar populations. [4] Its metallicity is [Fe/H] ≃ −1.3. [5] It is located at the right ascension 23h51m46.30s and declination +24d34m57.0s in the equatorial coordinate system ( epoch J2000.0), and in a distance of 820 ± 20 kpc from Earth and a distance of 294 ± 8 kpc [a ...
Andromeda and Milky Way collision.ogv. English: This animation depicts the collision between our Milky Way galaxy and the Andromeda galaxy. Hubble Space Telescope observations indicate that the two galaxies, pulled together by their mutual gravity, will crash together about 4 billion years from now. Around 6 billion years from now, the two ...
Andromeda XIX is a satellite galaxy of the Andromeda Galaxy (M31), a member of the Local Group, like the Milky Way Galaxy. [3] Andromeda XIX is considered "the most extended dwarf galaxy known in the Local Group", [4] and has been shown to have a half-light radius of 1.7 kiloparsec (kpc). [4] It was discovered by the Canada–France–Hawaii ...