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  2. Observation history

    The Andromeda Galaxy is visible to the naked eye in dark skies. Around the year 964 CE, the Persian astronomer
    In … See more

    Andromeda Galaxy - Wikipedia

    • 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 D25 isophotal diameter of about 46.56 kiloparsecs (152,000 light-years) and is approximately 765 kpc (2.5 million light-years) from Earth. The … See more

    ConstellationAndromeda
    Right ascension00ʰ 42ᵐ 44.3ˢ
    Declination+41° 16′ 9″
    Redshiftz = −0.001004 (minus sign indicates blueshift)
    General

    The estimated distance of the Andromeda Galaxy from our own was doubled in 1953 when it was discovered that there is a second, dimmer type of Cepheid variable star. In the 1990s, measurements of both standard … See more

    Structure

    Based on its appearance in visible light, the Andromeda Galaxy is classified as an SA(s)b galaxy in the de Vaucouleurs–Sandage extended classification system of spiral galaxies. However, i… See more

     
  1. The Andromeda Galaxy, also known as Messier 31 or M31, is a spiral galaxy located about 2.5 million light-years (2.4×10 19 km) from Earth. Located in the Andromeda constellation, it is the closest spiral galaxy to the Milky Way, where our solar system is, although it isn't the closest overall galaxy to the Milky Way.

    The Andromeda Galaxy (IPA: / ænˈdrɒmɪdə /), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula (see below), is a barred spiral galaxy approximately 2.5 million light-years (770 kiloparsecs) from Earth and the nearest major galaxy to the Milky Way.

    en.wikipedia.org/wiki/Andromeda_Galaxy
    The Andromeda galaxy is the nearest spiral galaxy to the Milky Way, our galaxy. Andromeda is sometimes called Messier 31, M31 or NGC 224 by astronomers. It is about 2.6 million light years away from us. In other words, we see it as it was 2.6 million years ago.
    simple.wikipedia.org/wiki/Andromeda_Galaxy
  2. Hubble Space Telescope reveals richest view of Andromeda galaxy …

  3. NASA captures photos of 'magnificent' Andromeda galaxy - USA …

  4. Hubble's 2.5-Billion-Pixel Mosaic Reveals Andromeda in …

  5. Andromeda Galaxy | Description, Location, Distance, & Facts

  6. ESA - Hubble traces hidden history of the Andromeda Galaxy

  7. The Andromeda galaxy: All you need to know - EarthSky

    Sep 5, 2024 · Learn about the closest spiral galaxy to our Milky Way, visible without a telescope on clear, dark nights. Find out how to locate it using Cassiopeia or Pegasus, and see stunning photos from EarthSky community.

  8. NASA's Hubble Traces Hidden History of Andromeda Galaxy

  9. Andromeda Galaxy: Facts about our closest galactic …

    Oct 26, 2023 · The Andromeda Galaxy, also called Messier 31 or M31, is the nearest major galaxy to the Milky Way. It is 2.5 million light years away from Earth and is the other major member of the Local Group...

  10. Get to know the Andromeda Galaxy - Astronomy …

    Sep 1, 2024 · Learn how Andromeda Galaxy, the nearest major galaxy to our Milky Way, has been studied and imaged over centuries. Discover its spiral structure, satellites, stars, and its expected merger with our galaxy in billions …