Based on its absorption line wavelength values, Iota Sagittarii must be a star:
A. located a little farther away than 1 parsec.
B. located closer than 1 parsec.
C. moving towards Earth.
D. moving away from Earth.
Answer:D
Based on its absorption line wavelength values, Iota Sagittarii must be a star:
A. located a little farther away than 1 parsec. B. located closer than 1 parsec. C. moving towards Earth. D. moving away from Earth.