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Explain or what is the meaning of the relationship of the stars brightness and distance?
Other things being equal, the farther the star, the less bright it will seem to us. Specifically, the apparent brightness is inversely proportional to the square of the distance.
What is a stars brightness as if it were a standard distance?
A star's brightness at a standard distance is referred to as its apparent magnitude. This standard distance is 10 parsecs (32.6 light-years) from Earth. Apparent magnitude allows astronomers to compare the brightness of stars as seen from Earth, regardless of their actual distance from us.
How can varble stars be used to determine the distance to globular clusters?
The idea is that CERTAIN TYPES of stars, including certain variable stars (such as Cepheids) have a known brightness; so if you observe their apparent brightness, you can calculate their distance.
How can you clasiffy the stars?
by temperature, size, brightness, distance and color
What compares the brightness of stars as if they were the same distance from earth?
midorz
Cepheid variable stars have been used to determine the?
1)placing cosmological constraints on the expansion of the Universe through the determination of distances to galaxies 2)to measure many characteristics of our galaxy and our relationship to it
Are the star in big dipper in the same brightness?
No. The stars are not only not the same brightness, they are not the same distance from us - they just "appear" to be as part of the optical illusion of earthbound astronomy. They are all of varying brightness, though fairly close in brightness overall.
How can cepheids be utilized to calculate distance accurately?
Cepheids are bright, pulsating stars that have a predictable relationship between their brightness and their pulsation period. By measuring the period of a cepheid's pulsation and comparing it to its observed brightness, astronomers can accurately determine the star's intrinsic brightness. This information can then be used to calculate the star's distance from Earth, as the apparent brightness of a star decreases with distance. This method, known as the period-luminosity relationship, allows astronomers to calculate distances to faraway galaxies and other celestial objects with high accuracy.
IN main sequence stars what is the relationship between brightness and temperature?
Brightness tells you the temperature and mostly temperature would tell the brightness of the star that we are talking about.
Is the relationship of brightness to temprture for these stars puzzling or does it make sense?
The relationship between brightness and temperature for stars generally follows the Stefan-Boltzmann law, which states that a star's luminosity (brightness) is proportional to the fourth power of its temperature. This relationship makes sense as hotter stars emit more energy across all wavelengths, resulting in greater brightness. However, factors like distance, size, and composition can complicate this relationship in specific cases, leading to some apparent anomalies that might seem puzzling at first glance. Overall, while the basic principle is clear, real-world observations can introduce complexities.
Why are pulsating variable stars useful for finding distances to globular clusters?
It really depends on the type of star, but for certain star types, there is a relationship between the period and the absolute brightness, so if the period is observed, the absolute brightness can be deduced. Yes. It seems like this question is about the Cepheid variables.
What persons discovered the relationship between a stars temperature and its brightness?
edwin hubble
