A unique feature of this galaxy is that the stars and dust of the nuclear disk are rotating in a direction that is aligned perpendicularly to the galactic disk.
22.
The finding is significant because they may represent the birthplaces for the Population I metallicity B-type stars in the galactic halo that could have been borne in the galactic disk.
23.
Because of its location at the galactic disk, ? Cyg is obstructed by interstellar dust and is reddened by around 0.2 magnitudes and loses about 0.6 magnitudes at visual wavelengths.
24.
Similarly, with the discovery of the Canis Major Dwarf Galaxy, it was found that a ring of galactic debris from its interaction with the Milky Way encircles the Galactic disk.
25.
The bulge rises so high above the plane of the galactic disk where the solar system is that a direct line to bulge stars runs through some of the galaxy's halo.
26.
This provides a lower limit to the age of the Universe and also allows formation timescales to be placed upon the structures within the Milky Way, such as the Galactic disk.
27.
This allows a ship equipped with a bistromathic drive to accomplish feats quite outside the normal capabilities of spacecraft, such as travelling two thirds across the galactic disk in a matter of seconds.
28.
Each time the cluster, now numbering 10, 000 stars, passes through the galactic disk, where most of the Milky Way mass is concentrated, the gravity of that mass strips away many more stars.
29.
Bahcall's team concluded that these dim stars constituted no more than 6 percent of the mass of the galaxy's halo and no more than 15 percent of the mass of the galactic disk.
30.
Martin et al . believe that the preponderance of evidence points to the accretion of a small satellite galaxy of the Milky Way which was orbiting roughly in the plane of the galactic disk.
