Milk Way local neighborhood of the Sun

    Caption: A map of our local neighborhood in the Milky Way (which is a barred spiral galaxy probably of de Vaucouleurs system type SAB(rc)bc or SB(rc)bc: e.g., Frommert & Kronberg 2005). The Solar System is the Orion Arm which is a minor Galactic spiral arms---but it's major to us.

    The displayed spiral arms are schematic/artist conception NOT precisely mapped.

    Features:

    1. The image is about 12000 ly by 9000 ly (i.e. 4 kpc by 3 kpc).

    2. Milky Way disk has a diameter of about 35 kpc. So in terms of the Milky Way as a whole, the map shows a relatively small region.

    3. As the map illustrates by a small sample well known naked-eye stars (which are also named stars), almost all the well known naked-eye stars and constellation stars are really close to us in a Galactic sense.

    4. The sample of naked-eye stars includes Betelgeuse, Polaris, Rigel, and Deneb.

    5. The shown Perseus Arm is one of the two major Galactic spiral arms. The other is the Scutum-Centaurus Arm which does NOT appear in this map.

      The Carina-Sagittarius Arm (AKA Sagittarius Arm) is another minor Galactic spiral arm.

    Credit/Permission: © Richard Powell, 2006 (uploaded to Wikipedia by User:AndrewRT, 2006) / Creative Commons CC BY-SA 2.5.
    Image link: Wikipedia: File:Orion Arm.JPG.
    Local file: local link: milky_way_local.html.
    File: Galaxies file: milky_way_local.html.