How is a luminosity class assigned to a star?
A) By combining the apparent magnitude with the star's parallax.
B) By measuring the period of variability in the star's apparent magnitude.
C) By studying the absorption lines in the spectrum of the star.
D) By observing the angular size of the star's image in a photograph or digital image.
Correct Answer:
Verified
Q46: The most accurate way to determine the
Q47: Which stars always have large positive absolute
Q48: The two stars near one another on
Q49: In the list below,the least common stars
Q54: If you compare two stars,
A)the one with
Q54: A star whose parallax is 0.01 seconds
Q90: If a star is twice as hot
Q121: The location of a star in the
Q126: The method of spectroscopic parallax cannot be
Q139: The absolute magnitude of a star is
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents