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What is a Subdwarf star?
A star with luminosity class VI under the Yerkes Spectral Classification System. They have luminosity 1.5 to 2 magnitudes lower than main-sequence stars of the same spectral type.
Which of the following luminosity classes refers to stars on the main sequence?
The basic luminosity classes are: I for supergiants, III for giants, and V for main-sequence stars.
What is a sentence with luminosity?
The stars shone with a luminosity reminiscent of diamonds on black velvet .
Are The most common type of stars are low luminosity stars?
Yes. Around 76% of the stars are low luminosity stars.
What is Zeta Draconis's luminosity compared to the sun?
Zeta Draconis is a binary star system where one of the stars, Zeta Draconis A, has a luminosity around 14 times that of the sun.
The Sun belongs to this class of stars?
The Sun belongs to the class of stars known as G-type main sequence stars, which are yellow dwarfs. These stars are relatively stable in their luminosity and have surface temperatures ranging from about 5,000 to 6,000 degrees Celsius.
What can you infer from a star's luminosity class?
A star's luminosity class provides information about its size and brightness compared to other stars of the same spectral type. It can indicate whether a star is a main sequence star, giant star, or supergiant star. Luminosity class is used in the Hertzsprung-Russell diagram to classify stars based on their evolutionary stage.
If a star is blue is its luminosity high or low?
Blue stars are very hot stars and so usually have high luminosity.
Which class of violently exploding stars whose luminosity after eruption suddenly increases millions of times?
One class of violently exploding stars that experience a sudden increase in luminosity after eruption are supernovae. Supernovae occur when a massive star reaches the end of its life cycle and undergoes a catastrophic explosion, briefly outshining an entire galaxy. These events are crucial for the dispersal of heavy elements and the formation of new stars.
What process of losing their outer layer causes stars to lose?
luminosity or brightness
What is the luminosity of Porrima?
Porrima, also known as Gamma Virginis, is a binary star system in the constellation Virgo. Its luminosity is approximately 100 times that of the Sun. The system consists of two stars that are both similar in size and brightness, contributing to the overall luminosity. Porrima is located about 39 light-years from Earth.
What describes the relationship between the luminosity of two stars that have the same radius?
The star that is hotter will have a higher luminosity.
