Imagine that you take images of two main sequence stars that have the same mass. From your observations, both stars appear to be the same age. Consider the following possible interpretations that could be made from your observations.
a. Both stars are the same age and the same distance from you.
b. Both stars are the same age but at different distances from you.
c. The stars are actually different ages but at the same distance from you.
d. The star that is closer to you is actually the older of the two stars.
e. The star that is farther from you is actually the older of the two stars.

From the imagination that images of two main sequence stars having the same mass and from the observations, both stars appear to be the same age, then it can be interpreted that A. Both stars are the same age and the same distance from you.

What is the effect of mass and lifespan of a star?

The mass has a very effect on the lifespan or age of a star, when the mass is very big, then it will bring about shorter lifespan.

Therefore, option A is correct because mass is a good determinant of the amount of matter present in its nebula.

Learn more about star :https://brainly.com/question/4208016

#SPJ9