The halo stars of the Milky Way are generally metal-poor, with a metallicity distribution that peaks at around 1/30 of the solar value. Due to its old age, understanding the processes which led to the formation of the stellar halo is key in unraveling the evolutionary history of the Milky Way. HALO 1st Generation was developed in 2011 and is based upon outdated technology, the 2nd Generation HALO was designed to overcome any flaws that the HALO 1st Generation had and is a massive leap forward in a much improved and more affordable product. Its yours to keep and drive for the duration. Step 2 - A driverless Halo will arrive to you. These ages are similar to those of bulge and globular cluster stars, meaning that stars in the halo were probably among the first Galactic objects to form. Step 1 - Simply request a car for your specific dates and times. The halo stars in the Milky Way are generally old, with most having ages greater than 12 billion years. In contrast to the thin and thick disks of disk galaxies, the halo generally has no net rotation and is supported almost entirely by velocity dispersion. Only about 1% of a galaxy’s stellar mass resides in its halo, and due to this low luminosity, the observation of halos in other galaxies is extremely difficult. A typical spiral galaxy has a faint, extended stellar halo.Ī stellar halo is an essentially spherical population of stars and globular clusters thought to surround most disk galaxies and the cD class of elliptical galaxies.