ESS
Grade-9
Easy
Question
The CORRECT order of the stellar spectral sequence from the hottest to the coolest stars is _____________.
- ABFGKMO
- MKGFABO
- OBAFGKM
- OBFGAMK
Hint:
The correct order of the stellar spectral sequence from the hottest to the coolest stars is OBAFGKM.
The correct answer is: OBAFGKM
- The seven types of stars are arranged in order with their temperature range.
- They are arranged from cooler to hotter from the O star to the M star.
- The sequence OBAFGKM represents the types of stars with respect to their temperature, color, and brightness.
Related Questions to study
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The spectral class of a star is linked to its________.
The spectral class of a star is linked to its________.
ESSGrade-9
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A star with an initial mass of 8 to 25 solar masses will eventually turn out to be a _________.
A star with an initial mass of 8 to 25 solar masses will eventually turn out to be a _________.
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When the Sun reduces its current core fuel, it will turn out to be a _______________.
When the Sun reduces its current core fuel, it will turn out to be a _______________.
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________ has the largest range in brightness and surface temperature.
________ has the largest range in brightness and surface temperature.
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Nova is a ____________.
Nova is a ____________.
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After full use of hydrogen the red giant becomes________.
After full use of hydrogen the red giant becomes________.
ESSGrade-9
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Which of the following is the feature of white dwarf star?
Which of the following is the feature of white dwarf star?
ESSGrade-9
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________ has the lowest density.
________ has the lowest density.
ESSGrade-9
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_______ is the major fuel consumed in the core of a red giant.
_______ is the major fuel consumed in the core of a red giant.
ESSGrade-9
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Match the following
| Name of the star |
Color of the star |
| 1. Rigel |
a. Orange dwarf |
| 2. Sirius B |
b. Blue supergiant |
| 3. Betelgeuse |
c. White dwarf |
| 4. Epsilon Indi |
d. Red supergiant |
Match the following
| Name of the star |
Color of the star |
| 1. Rigel |
a. Orange dwarf |
| 2. Sirius B |
b. Blue supergiant |
| 3. Betelgeuse |
c. White dwarf |
| 4. Epsilon Indi |
d. Red supergiant |
ESSGrade-9
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Most stars end their lives as ________.
Most stars end their lives as ________.
ESSGrade-9
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_________ stops a white dwarf from totally collapsing upon itself.
_________ stops a white dwarf from totally collapsing upon itself.
ESSGrade-9
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A swiftly rotating neutron star is known as a ____________.
A swiftly rotating neutron star is known as a ____________.
ESSGrade-9
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In which type of model are the Sun, other stars, and the Moon in orbit around the Earth?
In which type of model are the Sun, other stars, and the Moon in orbit around the Earth?
ESSGrade-9
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Which visible motion can be explained by a geocentric model?
Which visible motion can be explained by a geocentric model?
ESSGrade-9
