Question

17 the sun is the central star in our solar system. it’s temperature is 5000k. based on the table below what spectral type is the sun?
spectral type | color | temperature in degrees kelvin | mass | life expectancy | death spiral
o | blue | 47,500 - 31,000 | range from 10 - 100 solar masses | shortest life expectancy is 2 million years | super nova to neutron star or black hole
b | blue - white | 30,000 - 10,000 | at the low end, about.8 solar masses – the high end, about 10 solar masses | 20 million years |
a | white | 9,800 - 7,300 | | hundreds of millions |
f | yellow - white | 5,200 - 5,800 | | billions |
g | yellow | 5,700 – 4,900 | | | becomes red giant (twice), a planetary nebula, then possibly a white dwarf
k | orange | 4,800 - 3,900 | | tens of billions |
m | orange - red | 3,800 - 2,200 | less than half a solar mass | trillions of years |
(a) o
(b) a
(c) b
(d) f
(e) g

Explanation:

Step1: Check the temperature range of each spectral type.

The sun's temperature is 5000K. Let's check each option:

• Option A (O): Temperature range is 47,500 - 31,000K. 5000K is not in this range.
• Option B (A): Temperature range is 9,800 - 7,300K. 5000K is not in this range.
• Option C (B): Temperature range is 30,000 - 10,000K. 5000K is not in this range.
• Option D (F): Temperature range is 5,200 - 5,800K. 5000K is not in this range.
• Option E (G): Temperature range is 5,700 - 4,900K. 5000K is within this range (4,900 ≤ 5000 ≤ 5,700).

Answer:

E. G