Science

posted by .

I know what a baseline is, but what baseline is used in astronomy? y do we need vary the length of baselines we use?

Is the baseline the diameter of the earth's orbit?
I really do not get the 2nd part.

  • Science -

    The baseline IS the diameter of the Earth's orbit for parallax measurements. That s a way of measuring the distance of "closes" stars against a more distant star background.

    There are other types of radio telescope and optical interferometric measurements in which the observations are made from telescopes that are hundreds to milliions of meters apart, simultaneously. Such measurements are capable of providing images of very high optical resolution.

  • Science -

    thanks

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A surveyor measures the distance across a straight river by the following method. Starting directly across from a tree on the opposite bank, she walks 90 m along the riverbank to establish a baseline. Then she sights across to the …
  2. Science

    I know what a baseline is, but what baseline is used in astronomy?
  3. physics

    A surveyor measures the distance across a straight river by the following method. Starting directly across from a tree on the opposite bank, she walks d = 72 m along the riverbank to establish a baseline. Then she sights across to …
  4. Physics

    A surveyor measures the distance across a straight river by the following methods: Starting directly across from a tree on the opposite bank, she walks 249 m along the river bank to establish a baseline. Then she sights across to the …
  5. Chemistry

    Suppose that the dot/area representing the longest wavelength of color in this situation was located 21 mm from the baseline, and the dot/area representing the shortest wavelength of color was located 36 mm from the baseline (see Figure …
  6. Physics

    A volleyball court is 18 m long from baseline to baseline and the net is 2.24 m high. A volleyball player serves the ball from the baseline by hitting it at a height of 2 m above the floor at an angle of 10 degrees above the horizontal. …
  7. astronomy

    Which of the following two telescopes has a better angular resolution?
  8. astronomy

    Which of the following two telescopes has a better angular resolution?
  9. astronomy

    Which of the following two telescopes has a better angular resolution?
  10. math algerbra

    1. Which exponent makes the statement true?

More Similar Questions