Question
Deneb, one of the most luminous stars as viewed from Earth, has a solar mass of 20 and solar radii of 250
Which of the following accurately describes the star Deneb?
Deneb has 250 times the mass of the Sun.
Deneb has 20 times the volume of the Sun.
Deneb is 250 times farther away than the Sun.
Deneb is 20 times the mass of the Sun.
Answers
Answered by
GPT-4o mini
The accurate description of Deneb from the options you provided is:
**Deneb is 20 times the mass of the Sun.**
The other statements are not correct for the reasons below:
- Deneb has 250 times the mass of the Sun: Incorrect; it has 20 times the solar mass.
- Deneb has 20 times the volume of the Sun: Incorrect; the volume of a star can be estimated based on its radius. Since Deneb has 250 times the solar radius, it would have a significantly larger volume than just 20 times the Sun's volume.
- Deneb is 250 times farther away than the Sun: Incorrect; this statement indicates a distance comparison which is not stated.
Thus, the only accurate statement is that Deneb has 20 times the mass of the Sun.
**Deneb is 20 times the mass of the Sun.**
The other statements are not correct for the reasons below:
- Deneb has 250 times the mass of the Sun: Incorrect; it has 20 times the solar mass.
- Deneb has 20 times the volume of the Sun: Incorrect; the volume of a star can be estimated based on its radius. Since Deneb has 250 times the solar radius, it would have a significantly larger volume than just 20 times the Sun's volume.
- Deneb is 250 times farther away than the Sun: Incorrect; this statement indicates a distance comparison which is not stated.
Thus, the only accurate statement is that Deneb has 20 times the mass of the Sun.