3. Trigonometric (stellar) parallax is the a) change in position of the absorpti

Question

3. Trigonometric (stellar) parallax is the a) change in position of the absorption lines in a star's spectrum, caused by the star's motion around the center b) apparent change in position of the absorption lines in a star's spectrum, caused by the Earth's motion around o) distance to a star found by first observing the absorption lines in a star's spectrum to find the spectral type d) distance to a star found by first observing the apparent change in position of a nearby star compared to of mass in a binary system. the Sun. and luminosity class of the star. distant background stars, due to the motion of the Earth around the Sun

Explanation / Answer

ANSWER-

d) distance to a star found by first observing the apparent change in position of a nearby star compared to distant background stars,due to the motion of the earth around the sun.

Trigonometric parallex is used to measure the distances the of the nearby stars.The stars are so far away that observing a star from opposite sides of the Earth would produce a parallex angle which is too small to detect so a baseline must be used,the largest one being the orbit of the earth.

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.