Multiple Choice
Star may appear fainter due to the interstellar medium. This effect is known as ____________________.
A) interstellar reddening
B) interstellar extinction
C) interstellar absorption line
D) interstellar dust
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q71: The Sun makes most of its energy
Q72: A star has crossed the birth line
Q73: The thermal motions of the atoms in
Q74: What is the correct fraction of dust
Q75: Both the CNO cycle and the proton-proton
Q77: Which of the following is NOT evidence
Q78: Bok globules are small, dark fragments of
Q79: The interstellar medium is made of _.<br>A)gas<br>B)dust<br>C)gas
Q80: There is a main-sequence mass-luminosity relation because<br>A)helium
Q81: T Tauri stars are in hydrostatic equilibrium.