18 Questions
What can be inferred about the composition of stars based on the few lines observed in their spectra?
The chemical composition of the stars
Why do astronomers attach spectroscopes to their telescopes?
To analyze the spectra of stars
What can spectral analysis help astronomers identify?
The chemical make-up of a star
What is the purpose of comparing the spectral patterns of known elements to those of unknown stars?
To identify the chemical composition of the unknown stars
Which element is NOT mentioned as part of the investigation's spectral analysis?
Hydrogen (H)
What is the main method used by astronomers to detect the chemical make-up of a star?
Examining the star's spectrum
What is the main purpose of using spectroscopes in astronomy?
To identify the chemical composition of celestial objects
How does the Doppler effect relate to identifying celestial body movements?
It shows the speed at which celestial bodies are moving towards or away from us
Which element is NOT mentioned in the text as part of the mystery star's composition?
Oxygen (O)
How can a star's composition be inferred using a spectral pattern?
By identifying the unique absorption lines in the star's spectrum
Which of the following best describes how a star's movement affects the Doppler effect?
It results in a change in the wavelength of light emitted by the star
What characteristic of an ambulance siren is analogous to the Doppler effect in stars?
Pitch of the sound
What does a red shift in the spectral lines of a star indicate?
The star is moving away from Earth
Why is parallax only useful for measuring distances to close stars?
Parallax is not accurate for distant stars
What did the spectroscope allow astronomers to achieve that was previously thought impossible by Auguste Comte?
Determine the composition of stars
What is the main focus of astronomers when using a spectroscope to study stars?
Analyzing star compositions
How does a blue shift in the spectral lines of a star differ from a red shift?
Blue shift indicates movement towards Earth, red shift indicates movement away
What makes the spectroscope an amazing tool in astronomy according to the text?
Its capacity to reveal star compositions
Learn how astronomers examine the spectra of stars by attaching spectroscopes to telescopes. Explore a spectral view of a cluster of stars in the constellation Taurus, observing the composition through dark lines in the spectra.
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