Center of the galaxy at roughly the same velocity

Reference no: EM13220263

The stars in the disk of the Milky Way Galaxy near the Sun are all orbiting the center of the Galaxy at roughly the same velocity and in the same direction. The stars in the halo of the Milky Way Galaxy orbit the Galactic center in different directions and at different speeds.

a. Picture the stars in the disk behaving like the planets orbiting the Sun or like runners on a track. If the Sun and a nearby star are both moving in the same direction at nearly the same speed, how will that other star's velocity appear when measured by us? That is, what will we measure its relative velocity to be? Now picture a halo star moving in a direction perpendicular to the Sun with a velocity of 100 kilometers per second. From our point of view, will this halo star appear to be moving quickly or slowly?

b. Can you use the information that you provided to answer these questions to propose a method for separating halo stars from disk stars?

Reference no: EM13220263

Questions Cloud

Perspectives on health for your assigned role : Compose a list of perspectives on health for your assigned role. Read the list of perspectives of a student with a role different than yours. Respond to at least one of their perspectives, explaining how it is perceived by your designated role. Discu..

Describes environmental benefits-challenges of urbanization : describes environmental benefits and challenges of urbanization. In your own words, include descriptions of two 1996 award winners, discussing how they overcame one of the challenges mentioned in your presentation.

Distinct styles during its evolution-autocratic-bureaucratic : Prison management has had two very distinct styles during its evolution: autocratic and bureaucratic. What do you think are the most important aspects of each style?

Is there a difference among ethics-morals and values : Is there a difference among ethics, morals, and values? Identify the differences between standards of individual moral behavior and institutional codes of ethics.

Center of the galaxy at roughly the same velocity : The stars in the disk of the Milky Way Galaxy near the Sun are all orbiting the center of the Galaxy at roughly the same velocity and in the same direction. The stars in the halo of the Milky Way Galaxy orbit the Galactic center in different directio..

Different models of representational : What are the four different models of representational in american government and define and explain?

Reinventing the wheel at apex door company : Jim Delancy, president of Apex Door, has a problem. No matter how often he tells his employees how to do their jobs, they invariably "decide to do it their way", as he puts it, and arguments ensue between Jim, the employee, and the employee's supervi..

Important in shaping the present surface of venus : Which two geological processes appear to have been most important in shaping the present surface of Venus?

Texas government : Do you think we should have a full-time with annual sessions, well paid, professional Texas Legislature? Why or why not? Should the legislators be prohibited from becomming lobbyists for a time after they leave the legislature?

User Account

All Pages