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Which two stars have the most similar luminosity and surface temperature?
Wiki User
∙ 11y ago
alpha centari and the sun
Wiki User
∙ 11y ago
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Does An HR diagram plots a stars luminosity and surface temperature?
Yes.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What two stars have the most similar luminosity?
Alpha Centauri and the sun
Are main sequence stars all alike in their luminosity and temperature?
No. Main sequence stars vary greatly in both temperature and luminosity. The least massive stars, red dwarfs, can have temperatures as low as 2,300 Kelvin and luminosity as low as 0.015% that of the sun. The most massive stars, which are blue in color can have temperatures as high as 50,000 Kelvin and may be hundreds of thousands times more luminous than the sun.
What does an H-R diagram compare?
The H-R diagram compares a stars surface existing temperature to its absolute luminosity. By measuring the sun from the center of diagram, the star is used for reference.
Does An HR diagram plots a stars luminosity and surface temperature?
Yes.
Which statement describes the general relationship between temperature and luminosity of main sequence stars?
as surface temperature increases, luminosity increases
What are the five characteristics used to describe stars?
Three characteristics to classify stars are their luminosity, size, and color or surface temperature.
How do you determine a stars luminosity?
To determine a star's luminosity is from size and temperature.
What affects the luminosity of stars?
There are 2 main factors: the size of the star and its surface temperature. A larger size means a larger surface area to emit light. A higher surface temperature increases the energy emitted. Seen from Earth, the brightness of a star depends on how far away the star is as well as its actual luminosity.
The hr diagram graphs what 2 things?
The temperature and luminosity of stars.
What two stars have the most similar luminosity?
Alpha Centauri and the sun
What does and H-R diagram relate a star's temperature to?
The Hertzsprung-Russell diagram (H-R diagram) shows the relationship between absolute magnitude, luminosity, classification, and effective temperature of stars. The diagram as originally conceived displayed the spectral type (effectively the surface temperature) of stars on the horizontal axis and the absolute magnitude (their intrinsic brightness) on the vertical axis.
What do stars have that depends on their size?
luminosity and temperature depend on their size but also on their mass
What does a H R Diagram compare?
The H-R diagram compares a star's surface temperature to its absolute brightness.
Are main sequence stars all alike in their luminosity and temperature?
No. Main sequence stars vary greatly in both temperature and luminosity. The least massive stars, red dwarfs, can have temperatures as low as 2,300 Kelvin and luminosity as low as 0.015% that of the sun. The most massive stars, which are blue in color can have temperatures as high as 50,000 Kelvin and may be hundreds of thousands times more luminous than the sun.
What does an H-R diagram compare?
The H-R diagram compares a stars surface existing temperature to its absolute luminosity. By measuring the sun from the center of diagram, the star is used for reference.
