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The basic luminosity classes are: I for supergiants, III for giants, and V for main-sequence stars.

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Which of the following stars has a surface temperature of approximately 9000 K and luminosity about 1 or 20 times greater than the Sun's luminosity?

Don't write "the following" if you don't provide a list - it doesn't make any sense.


Does apparent magnitude refer to real luminosity?

No. Apparent magnitude (or luminosity) means how bright a star (or other object) looks to us; absolute magnitude (or luminosity) refers to how bright it really is.


What is luminosity also known as?

Luminosity is also known as brightness or radiance, and refers to the total amount of energy emitted by a star or other celestial object per unit time. It is a measure of the intrinsic brightness of an object.


Is yellow giant a star?

Yes, a yellow giant is a type of star. Specifically, it refers to a star that has evolved off the main sequence and is in a later stage of its life cycle, typically classified as a G-type star. Yellow giants are characterized by their larger size and increased luminosity compared to main-sequence stars of the same temperature. Examples of yellow giant stars include Pollux and Aldebaran.


List 3 characteristics used to classify stars?

Stars are classified based on their temperature, luminosity, and spectral characteristics. Their temperature determines their color, ranging from blue (hotter) to red (cooler). Luminosity refers to the total amount of energy they emit, which helps categorize them into different classes. Spectral characteristics involve the analysis of light emitted or absorbed by stars, revealing their composition and aiding in classification into spectral types such as O, B, A, F, G, K, and M.

Related Questions

Which of the following stars has a surface temperature of approximately 9000 K and luminosity about 1 or 20 times greater than the Sun's luminosity?

Don't write "the following" if you don't provide a list - it doesn't make any sense.


Does apparent magnitude refer to real luminosity?

No. Apparent magnitude (or luminosity) means how bright a star (or other object) looks to us; absolute magnitude (or luminosity) refers to how bright it really is.


What is the difference between a star's brightness and luminosity?

The difference between apparent brightness and luminosity is that apparent brightness means that a star may appear to be bright, but only looks bright because of the relatively closeness a star is to earth. Luminosity is used by astronomers and refers to the power output of a star. Apparent Brightness means a star may appear to be very bright but only look that way because it is relatively close to Earth. Luminosity just refers to the power output of a star.


What is the difference between a star's luminosity and brightness?

The difference between apparent brightness and luminosity is that apparent brightness means that a star may appear to be bright, but only looks bright because of the relatively closeness a star is to earth. Luminosity is used by astronomers and refers to the power output of a star. Apparent Brightness means a star may appear to be very bright but only look that way because it is relatively close to Earth. Luminosity just refers to the power output of a star.


What refers to translating the sequence of nucleic acids to the sequence of amino acids?

Transcription.


What is a definition of sequence in programming?

In programming, a sequence refers to a specific order in which operations, statements, or instructions are executed. It represents a linear flow of control, where each step is processed one after the other, following the sequence defined by the code. This structure is fundamental in programming, as it determines how data is manipulated and how outcomes are produced.


What is luminosity also known as?

Luminosity is also known as brightness or radiance, and refers to the total amount of energy emitted by a star or other celestial object per unit time. It is a measure of the intrinsic brightness of an object.


Is yellow giant a star?

Yes, a yellow giant is a type of star. Specifically, it refers to a star that has evolved off the main sequence and is in a later stage of its life cycle, typically classified as a G-type star. Yellow giants are characterized by their larger size and increased luminosity compared to main-sequence stars of the same temperature. Examples of yellow giant stars include Pollux and Aldebaran.


List 3 characteristics used to classify stars?

Stars are classified based on their temperature, luminosity, and spectral characteristics. Their temperature determines their color, ranging from blue (hotter) to red (cooler). Luminosity refers to the total amount of energy they emit, which helps categorize them into different classes. Spectral characteristics involve the analysis of light emitted or absorbed by stars, revealing their composition and aiding in classification into spectral types such as O, B, A, F, G, K, and M.


What is called occurring later or after following in order of succession?

The term that describes something occurring later or after in an order of succession is "subsequent." It refers to events, actions, or items that follow another in time or sequence.


What means luminosity for binoculars?

Luminosity in binoculars refers to the amount of light transmitted through the optics, which affects how bright and clear the viewed image appears. It is typically influenced by the diameter of the objective lenses and the quality of the optical coatings. Higher luminosity allows for better visibility in low-light conditions, making it ideal for activities like birdwatching or stargazing. Binoculars with greater luminosity numbers tend to deliver brighter images, enhancing overall viewing experience.


What is An element or number in a sequence?

An element in a sequence is one of the individual values appearing in the sequence. It is typically identified by its position in the sequence, often denoted by a subscript. The term "number in a sequence" refers to the value of a particular element within that sequence.