rebeccahoward107 rebeccahoward107
  • 24-10-2019
  • History
contestada

How scientist determine the shape of the Milky Way galaxy

Respuesta :

MirelaSanchez2006
MirelaSanchez2006 MirelaSanchez2006
  • 24-10-2019

Astronomers could use radio telescopes to accurately map the positions of these O and B stars and use the Doppler shifts of the radio spectrum to determine their rates of motion. When they did this with many stars, they were able to produce combined radio and optical maps of the Milky Way's spiral arms.

Answer Link

Otras preguntas

Water from the Earth's surface goes into the atmosphere by the process of from living things and from non- living things. O evaporation, precipitation O transpi
Help on this Math question please And No links please
Name Two ores of iron
a. buscador b. células c. clonar d. contraseña e. descubrimiento f. extraterrestres g. arroba h. patente 3 i. telescopio j. teoría
what are your thoughts on Friar Laurence agreeing to marry Romeo and Juliet. Explain in short paragraph please.​
How do you write a script in first person point of view?
to solve the equation 4+3x^2-7x=0 using the quadratic formula, what are the values of a, b, and c
in the triangle EFG,
If x varies directly as y and x = 74 when y = 10, find x when y = 4.
In the late 1800s, the herds of bison were nearly gone from the plains. The Great Plains Indians had been put on reservations. The Indians had to