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Chapter 17
Labeling
Labeling
This activity contains 6 questions.
Label the various parts and objects in the H–R diagram.
This question presents 9 items numbered 1.1 through 1.9. Each item is presented with a pulldown menu containing the letters A through I.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
1.1 Proxima Centauri
A
B
C
D
E
F
G
H
I
1.2 Surface temperature (K)
A
B
C
D
E
F
G
H
I
1.3 Sirius A
A
B
C
D
E
F
G
H
I
1.4 Main sequence
A
B
C
D
E
F
G
H
I
1.5 Sirius B
A
B
C
D
E
F
G
H
I
1.6 Luminosity (solar units)
A
B
C
D
E
F
G
H
I
1.7 White dwarf region
A
B
C
D
E
F
G
H
I
1.8 Red dwarfs
A
B
C
D
E
F
G
H
I
1.9 Sun
A
B
C
D
E
F
G
H
I
Identify the magnitudes of the labeled objects and the magnitude limits for binoculars and the naked-eye.
This question presents 7 items numbered 2.1 through 2.7. Each item is presented with a pulldown menu containing the letters A through G.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
2.1 Naked eye limit
A
B
C
D
E
F
G
2.2 Sirius
A
B
C
D
E
F
G
2.3 Binocular limit
A
B
C
D
E
F
G
2.4 Hubble, Keck limit
A
B
C
D
E
F
G
2.5 Full moon
A
B
C
D
E
F
G
2.6 Venus
A
B
C
D
E
F
G
2.7 Sun
A
B
C
D
E
F
G
Label the various parts and objects in the H–R diagram.
This question presents 8 items numbered 3.1 through 3.8. Each item is presented with a pulldown menu containing the letters A through H.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
3.1 Vega
A
B
C
D
E
F
G
H
3.2 Red giant region
A
B
C
D
E
F
G
H
3.3 Main sequence
A
B
C
D
E
F
G
H
3.4 Rigel
A
B
C
D
E
F
G
H
3.5 α Centauri
A
B
C
D
E
F
G
H
3.6 Blue giants
A
B
C
D
E
F
G
H
3.7 Sun
A
B
C
D
E
F
G
H
3.8 Betelgeuse
A
B
C
D
E
F
G
H
Label this diagram for proper motion.
This question presents 4 items numbered 4.1 through 4.4. Each item is presented with a pulldown menu containing the letters A through D.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
4.1 Transverse
A
B
C
D
4.2 1 pc
A
B
C
D
4.3 True space motion
A
B
C
D
4.4 Radial
A
B
C
D
Label this diagram for stellar parallax.
This question presents 6 items numbered 5.1 through 5.6. Each item is presented with a pulldown menu containing the letters A through F.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
5.1 Baseline
A
B
C
D
E
F
5.2 Parallactic angle
A
B
C
D
E
F
5.3 Sun
A
B
C
D
E
F
5.4 Earth's orbit
A
B
C
D
E
F
5.5 Background stars
A
B
C
D
E
F
5.6 Star
A
B
C
D
E
F
Identify the stars according to their size.
This question presents 7 items numbered 6.1 through 6.7. Each item is presented with a pulldown menu containing the letters A through G.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
6.1 Sirius A, 2 R
A
B
C
D
E
F
G
6.2 Arcturus, 23 R
A
B
C
D
E
F
G
6.3 Capella, 10 R
A
B
C
D
E
F
G
6.4 Aldebaran, 40 R
A
B
C
D
E
F
G
6.5 Sun, 1 R
A
B
C
D
E
F
G
6.6 Jupiter, 0.1 R
A
B
C
D
E
F
G
6.7 Antares, 300 R
A
B
C
D
E
F
G
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