Suppose Astronomers Could Examine a Star and Determine Its Apparent

question 88

Multiple Choice

Suppose astronomers could examine a star and determine its apparent magnitude M without any intervening gas and dust. Compared to its apparent magnitude measured with gas and dust between Earth and the star, this "clean" measurement of M would be

• A) a larger number.
• B) a smaller number.
• C) the same number.
• D) either larger or smaller depending on the star's speed (toward or away).

---

Definitions:

Biceps Femoris

A muscle of the posterior thigh that flexes the knee and extends the hip, part of the hamstring group.

Semimembranosus

A large muscle in the back of the thigh that is part of the hamstrings group and helps in thigh extension and knee flexion.

Extensor Digitorum Longus

A muscle in the lower leg that helps to extend the toes and dorsiflex the foot, aiding in walking and running.

Fibularis Tertius

A small muscle in the lower leg that helps with foot eversion and extension of the toes.