Spiral Galaxy Labeled, Sc and SBc galaxies, for instance, have very "loose" arms, whereas Sa and SBa galaxies have Milky Way Galaxy: Side View Schematic illustration of the Milky Way galaxy, showing the prominent spiral arms, the central galactic bulge, the location of the Sun, and selected X-ray sources. Dec 16, 2011 · Tracing along the spiral arms are winding dust lanes that also begin very near the galaxy's nucleus and follow along the length of the spiral arms. Globular Clusters A globular star cluster is a spherical group of up to a million stars held together by gravity. Spiral Galaxy A spiral galaxy typically has a rotating disc with spiral ‘arms’ that curve out from a dense central region. Oct 6, 1999 · The diagram is roughly divided into two parts: elliptical galaxies (ellipticals) and spiral galaxies (spirals). Naturally, different classifications of spiral galaxies have distinct arm-structures. The Milky Way is categorized as an SBc galaxy since it has loosely wound spiral arms, a small bulge, and a central bar. The Milky Way and the Andromeda Galaxy (M31) are two of a multitude of known spiral galaxies. These long, thin regions resemble a spiral and thus give spiral galaxies their name. (It takes 48,000 years for light to travel a distance equal to the length of the scale Spiral Galaxy A spiral galaxy typically has a rotating disc with spiral ‘arms’ that curve out from a dense central region. vy, kcm, etp, 27ksctlqa, t9e8a, kvm, 6kx, ovh, cdkwcn, mhj,