1. 6 stars were in the milky way nasa.
1. 6 stars were in the milky way nasa.
how many stars in the milky way nasa?
1. 6
Na
Na
bullet::::- structural components of the milky way using stellar kinematics, astronomers construct models which seek to explain the overall galactic structure in terms of distinct kinematic populations of stars. this is possible because these distinct populations are often located in specific regions of galaxies. for example, within the milky way, there are three primary components, each with its own distinct stellar kinematics: the disc, halo and bulge or bar. these kinematic groups are closely related to the stellar populations in the milky way, forming a strong correlation between the motion and chemical composition, thus indicating different formation mechanisms. for the milky way, the speed of disk stars is formula_1 and an rms (root mean square) velocity relative to this speed of formula_2. for bulge population stars, the velocities are randomly oriented with a larger relative rms velocity of formula_3 and no net circular velocity. the galactic stellar halo consists of stars with orbits that extend to the outer regions of the galaxy. some of these stars will continually orbit far from the galactic center, while others are on trajectories which bring them to various distances from the galactic center. these stars have little to no average rotation. many stars in this group belong to globular clusters which formed long ago and thus have a distinct formation history, which can be inferred from their kinematics and poor metallicities. the halo may be further subdivided into an inner and outer halo, with the inner halo having a net prograde motion with respect to the milky way and the outer a net retrograde motion.
stellar kinematics