The Sun Lab
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School
Bellevue College *
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Course
101
Subject
Astronomy
Date
Dec 6, 2023
Type
Pages
3
Uploaded by ChiefKoalaPerson979
Question #1: For the specific sunspot you chose, can you continue to find and
identify it in later pictures?
Yes, I can see the spot move slowly to the right across the same plane.
Question #2: On the Sep 15th picture, what is the longitude of the sunspot you
chose?
80
Question #3: What is date of the later picture you chose?
Sept. 19th
Question #4: What is the longitude of the sunspot you identified in the later
picture?
138
Question #5: According to the Solar Rotation Calculator, how many days would it
take for your sunspot to rotate completely around the Sun?
28 days
Question #6: Approximately how long does it take for the Sun to orbit the Milky
Way?
About 230 million years
Question #7: According to the Solar Rotation Calculator, how many days would it
take for the second sunspot you chose to rotate completely around the Sun?
27 days
Question #8: According to the Solar Rotation Calculator, how many days would it
take for the third sunspot you chose to rotate completely around the Sun?
26 days
Question #9: What is the average time you found for three sunspots you chose
from that group to rotate around the sun? (Add the answers to questions #5, #7,
and #8 and then divide by 3. [(your answer to #5 + your answer to #7 + your
answer to #8) ÷ 3 = _________ days]
27 days
Question #10: For the new sunspot you chose in Group B, how many days will it
take for this sunspot to rotate completely around the Sun?
32 days
Question #11: How long will it take for the second sunspot in Group B to rotate all
the way around the Sun?
31 days
Question #12: How long will it take for the third sunspot in Group B to rotate all
the way around the Sun?
31 days
Question #13: What is the average time you found for three sunspots you chose
from Group B to rotate around the sun? [(your answer to #10 + your answer to
#11 + your answer to #12) ÷ 3 = _________ days]
31.33 days
Question #14: Explain how it is possible for the Sun to have different rotation
rates for different latitudes. (NOTE: I'm not asking for a complicated answer to
WHY the Sun does this, give me a simple answer that explains how it is possible.)
Because of the physical links between its pieces, the entire body of a solid object, such
as a planet, tends to rotate at the same pace. The outer layers of a gaseous or plasma
sphere, such as the Sun, do not have a stable link to the inner core.
Question #15: Do some research on the Internet or in your text.
What is it called
when an object has different rotation rates for different latitudes?
Differential rotation
Question #16: What are your two measurements to the cloud part, and what is the
speed you found for the cloud?
1.6in and 2in and the speed is 887170mph
Question # 17: Repeat this process, only now find a part of the cloud that you can
identify in both the 8:36 picture and the 9:27 pictures below. What are your two
measurements, and the speed you calculate for the cloud?
1.2in and 1.5in and the speed is 404706mph
Question # 18: Repeat this process, only now find a part of the cloud that you can
identify in both the 9:27 picture and the 10:25 pictures below. What are your two
measurements, and the speed you calculate for the cloud?
2in and 2.3in and the speed is 354639 mph
Question # 19: Repeat this process, only now find a part of the cloud that you can
identify in both the 10:25 picture and the 11:23 pictures below. What are your two
measurements, and the speed you calculate for the cloud?
2.25in and 2.6in and the speed is 418056 mph
Question #20: To calculate the number of days that this solar explosion would
take to reach the Earth, divide 3875000 by the speed you found to answer
question #16 (3875000
÷ the speed you found in question #16 = ________ days to
reach the Earth.)
According to your calculations, how many days would it take
before this coronal mass ejection would hit the Earth?
4.3 days
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