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If two stars differ by 8.6 magnitudes what is their intensity ratio?
Wiki User
∙ 14y ago
2754.2 : 1
formula is Delta = 2.5118.6
Wiki User
∙ 14y ago
Wiki User
∙ 11y ago2.5
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How do you find the brightness ratio of stars?
The brightness ratio of stars is typically expressed using a magnitude scale. The magnitude scale is a logarithmic scale that measures the brightness of celestial objects, including stars. The lower the magnitude value, the brighter the object. Conversely, higher magnitude values indicate fainter objects. The magnitude scale is defined such that a difference of 5 magnitudes corresponds to a brightness ratio of exactly 100. In other words, a star that is 5 magnitudes brighter than another star is 100 times brighter. Similarly, a star that is 10 magnitudes brighter is 100 x 100 = 10,000 times brighter, and so on. To find the brightness ratio (R) between two stars with different magnitude values (m1 and m2), you can use the following formula: R = 100^( (m2 - m1) / 5 ) Where: R = Brightness ratio between the two stars. m1 = Magnitude of the first star. m2 = Magnitude of the second star. For example, if Star A has a magnitude of 2 and Star B has a magnitude of 6, you can calculate the brightness ratio as follows: R = 100^( (6 - 2) / 5 ) R = 100^(4/5) R ≈ 2.511 So, Star B is approximately 2.511 times dimmer than Star A. It's important to note that the magnitude scale is relative, and negative magnitudes indicate exceptionally bright objects (e.g., the Sun, which has an apparent magnitude of approximately -26.74), while positive magnitudes represent progressively fainter objects. Additionally, the magnitude of a star can be influenced by various factors, such as distance, intrinsic brightness, and interstellar dust extinction.
What is a H-R diagram and what two characteristics of stars are compared on it?
It is a diagram on which stars are plotted according to their absolute magnitudes (or luminosities) against their stellar classifications (or effective temperatures).
How do you describe the stars of the first magnitude?
"First magnitude" usually means the brightest 21 stars, as seen from Earth. Another definition is stars with apparent magnitudes 0.5 to 1.5. This definition excludes the very brightest stars, like Sirius. They are the first stars that become visible after sunset and they all have names. Examples are Altair, Aldebaran, Capella, Spica, Antares, Fomalhaut, Deneb, Regulus, Sirius, etc. There can be confusion because First Magnitude stars are not stars with an "apparent magnitude" of exactly "one". They are just the brightest stars, but naturally their magnitudes are close to one.
The Greeks assigned what magnitude to the brightest stars seen in the night sky?
The brightest stars were traditionally magnitude 1; the weakest that could still be seen with the naked eye, 6. This system has been formalized and refined; as a result, there are now not only magnitudes with decimals, but also negative magnitudes for the very brightest stars and planets. For example, Venus has a magnitude of approximately minus 4.
Why are there no black holes or neutron stars on the H R diagram?
The Hertzsprung--Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.Because the luminosity is low or non existent in the case of black holes, they do not appear on the HR diagram.
Two stars whose apparent magnitudes differ from each other by five magnitudes have a ratio of brightness of?
About 97.7 (calculated as 2.55)
What are the brightness of stars?
magnitude, dim stars have positive magnitudes and bright stars have negative magnitudes
What the magnitudeof the little dipper?
Asterisms don't have magnitudes. Stars have individual magnitudes.
Have absolute magnitudes of ones or less?
dwarf stars -Sydney-
What has absolute magnitudes of one or less?
Dwarf Stars
What are the different magnitudes if stars in Draco?
See related link
What is the ratio of apparent brightnesses for two stars if m A equals 7 and m B equals 5?
(7 - 5) = 2 magnitudesEach magnitude represents the ratio = 6th root of 100.2 magnitudes = (6th root of 100)2 = (cube root of 100) = ratio of 4.642 (rounded)
How do stars differ?
Stars differ with its shape.Also how are stars are brighter than others
How would you compare the brightness of Polaris with that of other stars in the sky?
Stars' brightness is measured by their magnitudes. There are first-magnitude stars which are the bright ones, down to 6th magnitude which is the faintest that can be seen with perfect eyesight on perfectly clear nights. Within that you can have stars with fractional magnitudes, for example magnitude 3.5 is half a magnitude fainter than magnitude 3. There are also negative magnitudes for the few brightest stars that are brighter than magnitude 0. The scale is logarithmic, with a difference of 5 magnitudes equal to a difference of 100 in brightness. Each magnitude is a ratio of 100^(1/5) which is equal to 2.512. Polaris has a magnitude of 2.02 and is less than a degree from being exactly in line with the Earth's north and south poles, which means when you look at it you are always facing north, to better than 1 degree.
How 2 stars could have the same apparent magnitude but different absolute magnitudes?
ble
How do you find the brightness ratio of stars?
The brightness ratio of stars is typically expressed using a magnitude scale. The magnitude scale is a logarithmic scale that measures the brightness of celestial objects, including stars. The lower the magnitude value, the brighter the object. Conversely, higher magnitude values indicate fainter objects. The magnitude scale is defined such that a difference of 5 magnitudes corresponds to a brightness ratio of exactly 100. In other words, a star that is 5 magnitudes brighter than another star is 100 times brighter. Similarly, a star that is 10 magnitudes brighter is 100 x 100 = 10,000 times brighter, and so on. To find the brightness ratio (R) between two stars with different magnitude values (m1 and m2), you can use the following formula: R = 100^( (m2 - m1) / 5 ) Where: R = Brightness ratio between the two stars. m1 = Magnitude of the first star. m2 = Magnitude of the second star. For example, if Star A has a magnitude of 2 and Star B has a magnitude of 6, you can calculate the brightness ratio as follows: R = 100^( (6 - 2) / 5 ) R = 100^(4/5) R ≈ 2.511 So, Star B is approximately 2.511 times dimmer than Star A. It's important to note that the magnitude scale is relative, and negative magnitudes indicate exceptionally bright objects (e.g., the Sun, which has an apparent magnitude of approximately -26.74), while positive magnitudes represent progressively fainter objects. Additionally, the magnitude of a star can be influenced by various factors, such as distance, intrinsic brightness, and interstellar dust extinction.
The brightest stars have apparent magnitudes that are?
Negative The apparent magnitude of our sun is -26.73 whereas Vega is +0.03
