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Date: Student Exploration: H-R Diagram Vocabulary: giant, H-R diagram, luminosity, main sequence, star, supergiant, white dwarf Gizmo Warm-up In the early 1900s, astronomers identified many star characteristics such as color, size, temperature$13.99
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Date: Student Exploration: H-R Diagram Vocabulary: giant, H-R diagram, luminosity, main sequence, star, supergiant, white dwarf Gizmo Warm-up In the early 1900s, astronomers identified many star characteristics such as color, size, temperature
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Course
H-R Diagram
Institution
H-R Diagram
Name: Date:
Student Exploration: H-R Diagram
Vocabulary: giant, H-R diagram, luminosity, main sequence, star, supergiant, white dwarf
Gizmo Warm-up
In the early 1900s, astronomers identified many star characteristics such as color, size, temperature, and luminosity—or how br...
Vocabulary: giant, H-R diagram, luminosity, main sequence, star, supergiant, white
dwarf
Gizmo Warm-up
In the early 1900s, astronomers identified many star
characteristics such as color, size, temperature, and
luminosity—or how bright a star is. Using the H-R
Diagram Gizmo, you will discover how some of these
characteristics are related.
Start by moving your cursor over the stars in the Star
collection. Star information is displayed on the right side
of the Gizmo. The numbers given for Luminosity, Radius,
and Mass are in comparison to the Sun. So, a star with a
radius of “2 Suns” is twice as large as the Sun.
Temperature is given using the Kelvin scale, where
273.15 K = 0 °C and 373.15 K = 100 °C.
1. Find Betelgeuse in the Star collection. Fill Betelgeuse
out the chart at right. Temperature 3400 K
2. The Sun has a radius of 695,500 km. Luminosity 9500
Radius 1000
What is the radius of Betelgeuse?
Mass 20
Betelgeuse has a radius of 1000 km.
,
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