Star Light Lab

You will find the instructions for this assignment within the PDF, but you will have to answer only the 12 questions that I’m going to add here.
Light is the most important quantities to measure in astronomy. In fact, it is the primary source of information about the heavens. In this lab, you will explore some of the properties of light through the Stellarium software. Make sure Stelarium is started before starting the lab.
Question 1
2 pts

1. Find the constellation Piscis Austrinus.
(a) What is the name of the brightest star in the Constellation?

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(b) What is its apparent magnitude?

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Question 2
2 pts

2. Sample a few of the faintest stars in Piscis Austrinus. What is the range of the magnitudes of these faint stars? Lower value (smallest number) to upper value (largest number)

.

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Question 3
4 pts

3. *How much brighter is a first magnitude star compared to (whole number only)

(a} a sixth-magnitude star ,

(b) a seventh-magnitude star ,

(c) an eighth-magnitude star ,

(d) a ninth-magnitude star

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Question 4
1 pts
4. *Venus has an apparent magnitude of about -4. What does this mean in terms of brightness of the Venus compared to that of the star Vega?
Group of answer choices
2.5 times brigher
6.31 times brighter
15.85 times brighter
39.82 times brighter
100 times brighter
Vega is brighter.

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Question 5
2 pts
5. (a) Which is brighter, a magnitude 7 Star or a magnitude 9 star? (b) Which is fainter, Venus at magnitude -4 or Jupiter at magnitude -l? Pick one a) and one b).
Group of answer choices
a) magnitude 7
a) magnitude 9
b) magnitude -4
b) magnitude -1

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Question 6
4 pts

6. In order, from brightest to faintest, list the names and apparent magnitudes of the four stars that form the bowl of the Little Dipper.

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Question 7
2 pts

7. Of the two brightest stars in the bowl of the Little Dipper asterism, Kochab and Pherkad, (a) which appears brighter in our sky (i.e., as seen from Earth)? Explain how you know. (b) Which is intrinsically brighter? Explain how you know.

a)

b)

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Question 8
1 pts
9. Which of the four stars that form the bowl of the Little Dipper asterism is intrinsically the brightest? Explain how you know.

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Question 9
2 pts

10. (a) Which of the four stars that form the bowl of the Little Dipper asterism is farthest from Earth? (b) Which of the four stars is closest to Earth? (Need to spell correctly for credit)

 

a)

b)

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Question 10
2 pts

12. (a) According to their color index, which of the four stars that are labeled in the view would you expect to appear the bluest in color? (b) Which of these four stars would you expect to appear the reddest in color?

a)

b)

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Question 11
20 pts

13. Use the equation above and the (B-V) index to get an approximate the temperature of the stars in the bowl of the Little Dipper.

Akfa Farkadain K

Anwa Farkadain K

Pherkad K

Kochab K

 

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Question 12
1 pts
14. Which of the four labeled stars in the view has the highest temperature?
Group of answer choices
Akfa Farkadain
Anwa Farkadain
Pherkad
Kochab
df

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